Can I Reuse Kitchen Water on My Garden? Complete Guide & Best Practices

If you want to use less water in your home and yard, you might wonder if you can reuse kitchen water for your garden. You can reuse certain types of kitchen water on your garden, but you need to be careful about what’s in it. Water used for boiling vegetables or rinsing produce can be helpful for plants, but water with grease, soap, or harsh chemicals can harm them.

Learning how to safely reuse your kitchen water can save resources and even add nutrients to your soil. However, it’s important to know which kinds of kitchen water are safe and how to apply them to avoid hurting your plants or soil health. If you’re interested in these eco-friendly habits, keep reading to get answers and easy tips for turning your waste water into a gardening resource.

Key Takeaways

• Safe kitchen water can help your garden and reduce waste.
• Avoid using greasy, soapy, or chemical-laden water on plants.
• Know how to properly collect and apply kitchen water for healthy results.

Can Kitchen Water Be Reused in the Garden?

Reusing kitchen water in your garden can help conserve water and cut costs, but not every kind is safe for your plants. You’ll need to understand which types of used water can help your garden and which could harm it or the soil.

Understanding Greywater

Greywater is water that has been used in sinks, bathtubs, showers, and washing machines but does not contain sewage. When it comes from your kitchen, it usually includes water from rinsing vegetables, washing dishes (without harsh chemicals), and boiling food. This water can carry bits of food, oils, soap, and cleaning products.

Safe use of greywater depends on what’s in it. If your kitchen water only contains small amounts of mild, biodegradable soap and traces of food particles, many non-edible plants will benefit from the added nutrients. However, if it contains bleach, strong detergents, or too much oil or grease, it can hurt your plants and soil life. To maximize safety, only reuse cooled kitchen water that has not been mixed with harsh chemicals. For more tips, see how to reuse kitchen water in the garden.

Key Differences Between Greywater and Blackwater

It’s important to know how greywater and blackwater are different. Greywater comes from your daily household activities such as washing hands or rinsing food. Blackwater includes water from toilets and sometimes kitchen drains with heavy waste, grease, or strong cleaners.

Blackwater has a high risk of carrying harmful bacteria, pathogens, and chemicals. It should never be reused in your garden without professional treatment because it can spread diseases and damage your soil. Greywater, if used thoughtfully, is usually safer as long as harsh chemicals, grease, and food chunks are filtered out or kept minimal. Following the right steps means you can use greywater for irrigation, but never apply it to edible plants you will eat raw. Learn more at greywater in gardening.

Common Household Sources

Some types of used kitchen water work better for gardens than others. Here is a quick table to help you decide:

If you are looking to save water, start by collecting runoff from rinsing fruits and vegetables, or cooled water used to boil pasta or eggs. Avoid water that smells, contains cleaners or large food bits, or that was used to wash meat. You can also explore more smart ways to reuse kitchen wastewater in gardening.

Benefits of Reusing Kitchen Water for Gardens

Reusing kitchen water in your garden helps save fresh water, delivers extra nutrients to your plants, and reduces the total amount of wastewater your home produces. This practice can make your gardening more eco-friendly and cost-efficient.

Water Conservation Impact

By using kitchen water to irrigate your garden, you can conserve a significant amount of fresh water. Every time you collect water from rinsing vegetables, boiling pasta, or washing rice, that’s less water going down the drain and more being put to good use outdoors.

This small step adds up fast. For example, if you reuse two gallons per day from your kitchen, that’s over 700 gallons saved each year. In areas facing drought or water restrictions, saving and reusing water means you can keep plants alive without tapping extra municipal resources.

Households that make reusing kitchen water a habit often notice a drop in their monthly water bill. Plants and gardens don’t always need perfectly clean water to thrive, and using greywater for non-edible plants is a safe and responsible way to cut back on consumption. Read more about the water conservation impact of kitchen water reuse.

Nutrient Content in Kitchen Water

Kitchen water from cooking foods like vegetables, pasta, or rice contains trace amounts of minerals and nutrients including nitrogen, potassium, and phosphorus. These nutrients can boost plant health and soil fertility because plants need them for growth and development.

Instead of discarding water that contains dissolved nutrients, you give your garden an organic source of nourishment. Water from boiling vegetables, for example, may include natural sugars and micronutrients that act like a mild fertilizer. This is especially helpful if your garden soil is lacking in nutrients.

However, avoid using water that has oils, strong detergents, or chemicals, as these can do more harm than good. Always use cooled, chemical-free water for the best plant results. See how kitchen water’s nutrient content benefits your garden.

Reducing Household Wastewater

Collecting and reusing kitchen water helps you decrease the amount of wastewater leaving your home. Every gallon of water you redirect to your garden is a gallon not added to the sewage or septic system.

This reduction not only lowers the risk of overloading your local treatment facilities but also supports better management of greywater within your household. The practice of using kitchen water for gardening encourages a mindful approach to water use. It helps cut back on kitchen waste overall.

It’s a straightforward change that reduces your environmental footprint and supports sustainable living. Find simple ways to reduce your household wastewater with kitchen water reuse.

Risks and Potential Drawbacks

Reusing kitchen water can save resources, but it is important to understand the possible negative effects. Kitchen water may contain substances that harm your soil, plants, or even your health if not handled correctly.

Salt and Residue Buildup

Some dish soaps, detergents, and food waste contain salts and minerals. When you reuse kitchen water, these salts can build up in your garden soil. Over time, high salt levels can hinder plants from taking in water and nutrients.

You may notice symptoms like stunted growth, brown leaf tips, and wilting. Certain plants, such as tomatoes and beans, are especially sensitive to salt. The risk is higher if you regularly use water that contains even small amounts of salt, such as from rinsing processed foods or salty dishes.

Tip: To reduce salt buildup, use kitchen water only on ornamental or non-edible plants or mix it with fresh water to dilute the salts. Flushing the soil with clean water occasionally can also help leach out excess salts.

Soap, Grease, and Chemical Contaminants

Water used for washing dishes often contains soap residue, dish detergent, and sometimes grease or oils. Most standard soaps are not designed for plants or soil. These chemicals can stop roots from absorbing water, block air flow in the soil, and even kill beneficial organisms in the ground.

Grease and oil present another challenge. When poured onto garden beds, grease forms a layer that prevents water from soaking in. Over time, this can suffocate roots and damage plant health. If you use dishwasher or sink water with chemicals on edible plants, it may contaminate fruits or vegetables.

Avoid using water with bleach, strong detergents, or non-biodegradable cleaners. For watering, choose water that is free from grease and only has mild, plant-safe soap—or skip soap entirely for best results.

Pathogens and Food Safety Concerns

Kitchen water may carry bacteria, viruses, or other pathogens that come from raw foods or dishes. Any water that has touched raw meat, eggs, or dirty produce can introduce harmful microorganisms to your soil and plants.

This is especially risky if you use the water on edible plants. Bacteria can linger in the soil or splash onto leaves and fruits that you later eat. Even if the plants seem healthy, crops like lettuce, strawberries, and greens can pick up germs that are hard to wash off.

To lower the risk, do not reuse kitchen water from washing meat or animal products. Do not apply kitchen water directly to the edible parts of plants or any leafy vegetable that will be eaten raw. Waiting at least 24 hours before harvesting can help, but using only safe, boiled, or filtered water is the best way to protect your family’s health.

Which Types of Kitchen Water Are Safe to Reuse?

Not all kitchen water is the same when it comes to reusing it in your garden. The safety and usefulness of the water depend on what it was used for, what’s in it, and how it’s collected.

Water from Vegetable Washing

Water used to wash fruits and vegetables is usually safe for your garden. It often contains small amounts of dirt or plant debris but is free from chemicals and harmful substances. This water can have tiny bits of nutrients that actually help plants.

You should avoid using water that has been mixed with soaps, bleach, or other harsh cleaners. Simple rinse water, collected before any soap or detergent is added, is best.

If you have used vinegar or salt in your rinse, do not use this water on your plants, as both can harm soil and plant growth. Use a clean bucket or pan to collect the rinse water to make the process easier and more efficient. Even leftover water from rinsing rice or beans is useful because it can provide trace minerals for your soil, following the recommendations on safe reuse from Home Tuff.

Boiling and Cooking Water

Water from boiling vegetables, potatoes, pasta, or eggs is safe to reuse in the garden as long as you have not added salt or oil. Cooking water can even add nutrients like potassium, magnesium, and other minerals to your soil.

Allow this water to cool completely before pouring it on your plants. Hot water can damage roots.

Do not reuse water with oil, butter, salt, or strong seasonings. These ingredients can harm your plants and affect the soil. Clean, unsalted boiling water is recommended for watering outdoor beds or flower pots. For more ideas and tips, see the suggestions on Apartment Therapy.

Sink and Dishwater Considerations

Dishwater from washing dishes is more complex. If you use only plain, biodegradable, plant-friendly soap and wash lightly soiled dishes, you can sometimes reuse this water on non-edible garden plants.

Avoid water with harsh detergents, bleach, degreasers, or strong chemical cleaners. These chemicals can build up in garden soil and may kill plants or harm soil health.

Grease and food scraps should also be filtered out before using sink water in the garden. Never use dishwater on vegetables or fruits you plan to eat raw, because bacteria from food residue can make the food unsafe. For safe use, install a fine mesh filter or collect graywater with a separate bucket, as discussed on ShunShelter.

Preparing Kitchen Water for Garden Use

When reusing kitchen water for your garden, it’s essential to make sure it is clean, safe, and free from chemicals or contaminants. Proper preparation lowers risks to your plants and soil and helps you make the most of your household water.

Filtering Solids and Debris

Start by removing food particles and solids from your collected kitchen water. Use a fine mesh sieve, coffee filter, or even a piece of clean cloth to filter out any leftover rice, vegetable peels, or other debris.

Filtering helps prevent clogged watering cans, hoses, and soil surfaces. Food scraps can attract pests like ants or rodents, so always strain water before use.

If you plan to reuse dishwater, skim off any floating oils or large particles first. Do not use water containing chunks of meat, bones, or other animal products. Vegetable rinse water is usually safer after filtration.

Avoiding Harmful Additives

Many kitchen cleaners and soaps have chemicals that are not safe for plants. Do not use water that contains bleach, ammonia, harsh detergents, or antibacterial agents in your garden.

If you use dish soap, make sure it is labeled “biodegradable” and is free from perfumes or dyes. Even biodegradable soap water should not be used on edible plants without proper filtration and dilution.

Avoid any water with salt or spicy residue, as these can damage root systems and change soil chemistry. If you washed greasy pans or dishes, do not use that water, since oils can coat roots and block air exchange in the soil. For more guidelines, see these steps on safe kitchen water reuse.

Cooling and Storing Water

Always let hot kitchen water cool to room temperature before watering plants. Pouring hot water on plants can damage roots or kill useful soil organisms.

Store filtered kitchen water in a clean, covered container to keep out bugs and dirt. Use the collected water within 24 to 48 hours to avoid bacteria growth that might harm plants or create smells.

If you need to store it longer, keep the water in a cool, shady spot and never let it stand for more than two days. Discard old water and wash your container regularly to prevent mold. For more storage tips and timing, read this practical guide to safe garden water reuse.

Recommended Application Methods

Using kitchen water in your garden helps save water and lower your bills. Safety and effectiveness depend on how you apply the water, what you include, and the types of plants you want to nourish.

Direct Watering at the Root Zone

Applying kitchen water directly to the root zone means pouring the water only at the base of plants. This method targets where roots can absorb the most moisture and nutrients while keeping leaves dry, which helps prevent disease.

Use a bucket to collect rinse water or cooled leftover cooking water. Avoid water with soap, bleach, oils, or food chunks. If you wash vegetables, collect that rinse water. Let it cool to room temperature before applying.

Pour slowly around the base. Do not store used kitchen water for more than 24-48 hours because bacteria can start to grow and may harm plants. For extra care, strain the water first so bits of leftover food do not invite pests or clog the soil. Focus on ornamentals and shrubs, not edible crops, if the water is not filtered well.

Using Greywater Systems

Greywater systems are designed to safely collect and reuse water from your kitchen or laundry for the garden. These setups use filters to keep out grease, detergents, and solid particles. A basic system sends water directly to garden beds using underground pipes or hoses.

Most systems are best for watering trees, bushes, and lawns—not food crops—unless you are sure the water is free from chemicals or oil. Cleaning and maintenance are needed so filters do not clog and unhealthy bacteria do not build up. Use only plant-based, biodegradable soaps in your kitchen if you plan regular use of greywater.

You can learn more about how to safely reuse kitchen and household water with a guide on greywater gardening.

Incorporating Drip Irrigation

Drip irrigation works well with reused kitchen water since it sends water right to plant roots and avoids splashing leaves or fruit. This limits disease and water waste. Fit your drip lines with a filter, such as a fine mesh screen, to remove food debris or dirt before water enters the tubes.

Flush the lines often to prevent clogs. Make sure all pipes and connectors are clear of grease or soap, as these can harm the plants or soil. Collect kitchen water in a clean container, strain it, and then pour or pump it into the drip system.

You can rotate where you apply recycled water so the same patch of soil does not build up residue. This method works best for non-edible shrubs and flowers, but you can use it on vegetables if the water is clean and has no chemicals. Find more on fitting irrigation systems for greywater at AccessibleGardens.

Plants and Soil Types Best Suited for Kitchen Water

The type of plants you want to water and the makeup of your soil will influence whether using kitchen water is safe and effective. How you manage water and mulch can also affect moisture retention and plant health.

Edible vs Non-Edible Plants

Non-edible plants, like ornamental shrubs, trees, and flowers, are best for kitchen water that may contain mild soap or food particles. This is because these plants do not produce food, so even if a little residue is present, it won’t end up in the fruits or leaves you eat.

For edible plants like vegetables, herbs, or fruit trees, only use clean kitchen water not contaminated by grease, salt, strong detergents, or chemicals. Avoid water that was used to clean meat or fish, or that contains bleach or heavy soaps, as these may introduce harmful bacteria or chemicals to your food plants. According to this guide, kitchen water should always be filtered or boiled and cooled before using it on crops you plan to eat.

When in doubt, keep kitchen water for non-edible plants and lawns, where the risk of contamination is much lower.

Soil Structure and Drainage Needs

Soil that is loose and well-draining, like sandy or loamy soils, handles kitchen water better. Water is absorbed more quickly, and any soap or organic residue disperses, reducing the chance of harmful buildup. Clay soils, which drain poorly, may suffer from compaction or salt accumulation if repeatedly watered with reused kitchen water.

It’s helpful to use a small trowel to loosen heavy soils and mix in organic matter like compost. This increases the soil’s ability to filter residues and prevents pooling, which could otherwise encourage fungal growth or root rot. Avoid kitchen water that has oil or large food particles, as these can clog the soil and harm plant roots. For extra security, you can filter your kitchen water through a cloth or a simple homemade filter before applying it.

Mulch and Moisture Retention

Mulching is important if you use kitchen water for your garden. A layer of mulch, like straw, wood chips, or dried leaves, helps keep moisture in the soil and prevents quick evaporation. This means you won’t have to water as often, saving both water and effort.

Mulch also acts as a barrier, reducing the risk of direct contact between any kitchen water residue and plant stems or leaves. It helps filter small particles out of the reused water before it can reach the soil surface. Choose plant-based mulches that break down safely over time, and keep the mulch a few inches away from plant stems to avoid fungal problems.

If you notice smells or mold forming in the mulch layer, thin it out and allow it to dry before adding more kitchen water. This simple step helps you maintain healthy, moist soil with fewer risks from reused water. For more detailed instructions on using mulch with kitchen water, see this gardening article.

Legal and Environmental Considerations

Before reusing kitchen water in your garden, you need to understand the rules in your area and how such practices can affect the environment. Local laws may restrict what you can do, and using kitchen water comes with environmental risks that might harm plants or soil.

Local Regulations and Permits

Local governments may have strict rules about reusing grey water, including kitchen water, outdoors. Some areas allow grey water use from sinks or washing machines, but may not permit water with food scraps, oils, or harsh cleaning chemicals.

You may need a permit before setting up any system that collects and distributes grey water into your garden. Contact your local health department or environmental agency before starting. They will let you know if you can use kitchen water and if you must install special equipment. Many places require kitchen water systems to be separated from drinking water supplies.

If you skip these steps, you could face fines or be asked to remove your system. Check your area’s specific regulations to make sure you are fully compliant.

Environmental Impact Assessment

Using kitchen water, also called grey water, can be beneficial for soil moisture and add nutrients, but it also brings risks. Soap, detergents, and food particles in kitchen water may harm certain plants or build up in the soil over time.

You must watch for signs of soil salinity or nutrient overload. High salt or excessive nutrients can hurt plants, reduce soil health, or harm beneficial soil organisms. Avoid using water that contains bleach, harsh chemicals, or lots of food waste.

To reduce risks, let the water settle so solids drop to the bottom, or use simple mesh filters. Apply kitchen water only to ornamentals or fruit trees, and keep it off vegetable leaves. For added safety, consider alternating between grey water and fresh water.

Learn more about reviewing the environmental impact of reclaimed water before using it on vegetable gardens.

Integrating Water Conservation Strategies

Saving water in your garden is important not only for the environment but can help lower your water bill. Using creative methods like smart watering and applying mulch makes it easier to keep your garden healthy while using fewer resources.

Reducing Overall Water Usage

You can lower your garden’s water use by changing simple habits and choosing the right plants. Collecting rainwater and reusing safe kitchen water (known as greywater) can replace some fresh water needs. For example, sturdy native plants often need less water than flowers or grass.

Watering during early morning or late evening limits evaporation. Checking your soil before watering helps avoid waste. Try to water the base of your plants instead of the leaves, letting more water reach the roots. Shorter watering times and using water-efficient drip systems also cut down on water loss.

If you want to learn more ways to save water, Better Homes & Gardens lists practical tips for home gardeners focused on drought and conservation.

Synergizing Mulch and Greywater

Mulch helps keep the soil moist and blocks weeds. When you use mulch with greywater from your kitchen, both methods work together to save water even more. Organic mulches, such as straw or shredded leaves, slowly break down, improving your soil’s health.

Before pouring greywater on your mulch, make sure the water doesn’t have bleach, harsh soaps, or oils. This keeps your soil and plants safe. Spread 2–3 inches of mulch around your plants and trees, and use kitchen water only when it’s cooled and free from food chunks.

Combining these practices keeps water in the soil longer, so you can water less often. For safe ways to use kitchen water and mulch, Hometuff explains essential do’s and don’ts.

Common Mistakes to Avoid

Reusing kitchen water in your garden can be helpful, but there are several pitfalls that can harm your plants, waste water, or even damage your soil. Paying attention to how you collect, treat, and spread kitchen water helps you get the most benefit with the least risk.

Overwatering and Runoff

Using too much kitchen water can lead to a waterlogged garden. Excess water suffocates roots and encourages plant diseases like root rot and fungal growth.

Runoff happens when soil can’t absorb water fast enough. This can wash away nutrients, erode soil, and carry any contaminants or particles from kitchen water to unwanted areas. It can also lead to waste, defeating your goal of saving resources.

To avoid these issues, always check your soil moisture first. Only water when your plants need it. When you apply kitchen water, pour slowly and directly onto the base of plants to help the soil absorb it. Avoid dumping large amounts at once, especially in clay-heavy or compacted soils. Rotate where you water so that no one area of your garden is overwatered.

Using Contaminated Water

Not all kitchen water is safe for your garden. Water mixed with grease, oil, bleach, strong detergents, or other chemicals can harm plants and soil life. Greasy water attracts pests and can create hydrophobic soils that repel water. Chemical residues may also build up, harming your soil health or even contaminating fruits and vegetables.

Kitchen water used to rinse fresh vegetables or boil plain pasta is usually okay, but dishwater containing soap, bleach, or strong cleaners should not be used on garden beds—especially where you grow food. Filtering kitchen water to remove solids and food particles can help if you decide to use it at all. For more details, see this guide on reusing kitchen water for your garden which explains the risks of using dirty or chemically-treated water.

Ignoring Plant Sensitivities

Some plants are sensitive to what’s in kitchen water. For example, kitchen water with moderate soap or salt buildup harms strawberries, leaf lettuces, and root vegetables like carrots. Edible crops that come in contact with the soil, like lettuce or strawberries, are at higher risk for contamination from kitchen water, especially if it’s not filtered.

Different plants have unique needs for water pH, nutrients, and trace elements. If you use kitchen water with varied content—such as starchy water from rice or water used to rinse meats—check how each type affects your garden species. If unsure, use recycled water only on non-edible plants like shrubs or flowers or dilute heavily with fresh water before use. Pay close attention to signs of stress such as yellow leaves or stunted growth and switch to clean water if problems develop.

Long-Term Practices for a Sustainable Garden

Using kitchen water in your garden can be a safe and effective way to conserve water if you follow a few long-term practices. Focus on the quality of the water, pay close attention to plant health, and adjust your routine as the seasons change.

Routine Water Quality Monitoring

Regularly check the quality of any reused kitchen water before using it for your garden. Grease, soap, and food particles can build up in soil and harm plants if left unchecked. Use only water that is free from harsh chemicals and avoid water that has been used to clean strong detergents or bleach.

To keep things simple, you can use a coffee filter or a fine mesh to filter out small food particles before watering. If you cook with a lot of oil or fat, let the cooled water settle and then pour off the clear water from the top. This avoids adding grease to your garden.

Testing for pH and salt levels two or three times a year helps you spot problems early. If the water smells sour or looks cloudy, do not use it on your plants. For more tips about filtering and using safe kitchen water, see the guidance from Home Tuff.

Tracking Plant Health

Monitor your plants for any warning signs after introducing kitchen water. Look for changes such as yellowing leaves, stunted growth, or unusual wilting. These signs could mean that kitchen water is building up harmful residues or that your plants are sensitive to leftover food particles or soap.

Keep a simple garden journal to track when and how much kitchen water you use. Take note of plant responses after each application. If you notice any negative changes, stop using the kitchen water and switch to clean water for a while.

Plants like lawns, shrubs, or non-edible ornamentals generally handle reused water better than fruit or vegetable crops. If your garden includes a mix of plants, prioritize the safe use of kitchen water on non-edible species.

Adapting to Seasonal Changes

Your garden’s water needs change throughout the year. During hot or dry weather, plants may need more water, but be careful not to overuse kitchen water, especially if there is a higher risk of disease or if water contains extra nutrients.

In rainy seasons, reduce use of kitchen water to avoid overwatering and waterlogging, which can lead to fungal problems. If you notice water pooling, wait until the soil is drier before watering again. Always use stored kitchen water within 24 to 48 hours to cut down on bacterial growth.

Adjust your watering technique during cool months—plants use less water and the soil holds moisture longer. By paying attention to seasonal weather and soil moisture, you can keep your garden healthy with less waste and risk of harm, especially when reusing water that may have different contents depending on what you cook or clean.

Frequently Asked Questions

Reusing kitchen water in your garden can help save water and lower costs if done correctly. How you filter and use the water matters, as does the type of soap and source of wastewater.

How can one safely filter grey water for use in a garden?

To filter grey water safely, use a mesh strainer or coffee filter to remove food particles and debris. Let the water cool and settle, then pour off the clear water, leaving solid bits behind. Avoid using water that contains harsh chemicals or bleach.

If you want more detailed tips on collecting, filtering, and storing waste water, visit this guide on how to reuse kitchen water for gardening.

What impact does soapy water have on plant health?

Soapy water made from mild, biodegradable soaps can be safe for some ornamental plants. However, most dish soaps and detergents contain chemicals that may hurt plant leaves or harm soil organisms if used often.

Too much soap or harsh chemicals can cause leaf burn, yellowing, or damage to roots. Avoid using soapy water on edible plants or crops.

Is it safe to use water from washing machines to irrigate plants?

Water from washing machines, called grey water, can be reused in gardens, but only if you use plant-friendly detergents without bleach or harsh chemicals. It should only be used to water lawns or flower beds, not edible plants, to prevent chemical buildup in food crops.

For more on safe reuse, see can I use washing machine water on the garden.

What are the risks of using stagnant water for plant irrigation?

Stagnant water helps bacteria and fungi grow, which can harm both plants and people. If kitchen water is left standing for more than 24–48 hours, bacteria may multiply and cause foul smells or introduce disease to your garden.

It is best to use collected grey water within a day and never use water with mold or an off smell.

Which plants thrive when irrigated with grey water?

Some plants handle grey water better, like shrubs, trees, and flowers. These plants do not produce edible parts you eat straight from the ground, so they avoid potential health risks from chemicals or bacteria.

Lawns, decorative bushes, and hardy perennials often grow well with filtered kitchen or laundry water if it’s free from strong chemicals.

Can soapy water be used as a pesticide without harming the plants?

Mild, diluted soap solution is sometimes used on plants to control pests like aphids, but it’s important to use soaps that do not contain fragrances, antibacterial agents, or degreasers. Always test a small area first.

Too much soap or strong ingredients can burn leaves or stunt plant growth. Only use as directed and avoid applying in direct sunlight.