Whats The Best Time To Water Cannabis

Ah, the joys of cultivating cannabis – a delicate artform that demands meticulous care and attention for those lush green plants to truly thrive. One crucial aspect often overlooked by novice growers is determining the best time to water cannabis.

Timing your watering regimen correctly can make all the difference in promoting healthy growth and ensuring impressive yields.

Key Takeaways – Best Time To Water Cannabis

  • 🌱 Best time to water cannabis: early morning or late afternoon/early evening
  • 💧 Importance of proper watering: maintains nutrient uptake, prevents stress and wilting, and promotes healthy growth
  • 🌿 Factors to consider when watering: soil type, stage of growth, and indoor vs. outdoor growing
  • ⏰ Avoid midday watering: to prevent wilting and scorching
  • 🚰 Signs of overwatering and underwatering: wilting or drooping leaves, yellowing or browning leaves, and stunted growth or lack of growth
  • 💦 Proper watering techniques: use a watering can or drip irrigation system, water slowly and evenly, and allow soil to dry out slightly between waterings 🔬 Water quality and cannabis growth: test and treat water for contaminants, maintain proper pH levels, and monitor water temperature
  • ❓ FAQs: understanding how much water cannabis needs, how often to water, whether tap water is safe, and the consequences of overwatering

Importance Of Proper Watering For Cannabis Plants

Proper watering of cannabis plants is crucial as it helps maintain nutrient uptake, prevents stress and wilting, and promotes healthy growth.

Maintains Nutrient Uptake

Ensuring proper hydration for cannabis plants has a significant impact on their ability to maintain efficient nutrient uptake. Water plays a crucial role in the transportation of essential nutrients from the roots up to various parts of the plant, providing much-needed sustenance in order for it to thrive.

One example where water impacts nutrient absorption can be seen in nitrogen’s pivotal role within photosynthesis. Inadequate watering may impede this critical process, leading not only to reduced growth rates but also potential health problems such as yellowing leaves or weaker stems.

Prevents Stress And Wilting

Proper watering is crucial in preventing stress and wilting in cannabis plants. A well-hydrated plant can efficiently carry out essential processes, such as photosynthesis and nutrient uptake, ensuring healthy growth.

On the other hand, underwatering leaves your cannabis thirsty and vulnerable to dry conditions, while overwatering suffocates the roots by depriving them of necessary oxygen and nutrients.

To strike an ideal balance between too much and too little water, it’s important to monitor your cannabis plants closely for changes in their appearance. Catching early signs of dehydration or excess moisture can help you adjust your watering schedule accordingly before irreversible damage occurs.

For instance, if you notice curling leaves with darkened tips pointing upwards during the heat of the day but returning to normal as temperatures cool down, this could be a signal that your cannabis plant needs more frequent watering at optimal times like early morning or late afternoon/early evening when evaporation rates are lower.

Promotes Healthy Growth

Proper watering is essential to fostering healthy growth in cannabis plants, as it ensures the roots receive adequate hydration and access to vital nutrients. When the plant enjoys optimal water levels without being over or underwatered, its roots can effectively absorb necessary nutrients from the soil.

Anecdotal evidence suggests that cannabis growers often see significant improvements in their plants’ health when adjusting their watering schedules properly.

For instance, by simply avoiding midday watering and incorporating precise timing based on specific factors like soil type or environment, these growers find their cannabis plants display impressive growth potential with fuller foliage and healthier root systems.

Factors To Consider When Watering Cannabis

Consider the soil type and its moisture retention, the stage of growth, and whether you are growing indoors or outdoors when determining the best watering schedule for your cannabis plants.

Soil Type And Moisture Retention

The type of soil you use for your cannabis plants plays a crucial role in how often you need to water them. Different soil types have varying abilities to retain moisture, which affects the frequency and amount of watering required.

Plants grown in sandy soils, for instance, dry out more quickly than those grown in clay soils, so they need more frequent watering. On the other hand, clayey soils hold on to moisture longer and require less frequent watering.

Organic soils such as coco coir or peat moss offer excellent moisture retention characteristics and are a good choice for cannabis growers who want to avoid over-watering their plants.

Stage Of Growth

The growth stage of cannabis plants is critical in determining their watering needs. Once the plant establishes a well-developed root system and grows 4-6 nodes, it enters the vegetative stage.

During this phase, the plant requires more water as it continues to grow rapidly. However, as the plant transitions into its flowering stage, its water requirements reduce because its growth rate slows down.

Inadequate watering during this phase can inhibit bud development and cause stunted growth.

In summary, understanding your cannabis plants’ growth stage is vital in providing appropriate care when it comes to hydration needs.

Indoor Vs. Outdoor Growing

Indoor and outdoor growing of cannabis has its differences, including watering needs. Indoor growth provides better control over the grow environment, but requires more attention to watering due to the lack of natural elements like rain and sun.

See also  How To Store Cannabis Seeds Like A Pro

Since indoor plants are grown in containers with artificial soil, moisture retention is important when watering. Outdoor growth allows for natural irrigation from rainfall and water runoff, but requires testing the level of acid-base balance and electrical conductivity of the soil before watering.

Regardless of indoor or outdoor cultivation, slow and even watering techniques should be used to prevent overwatering or underwatering which can stunt plant growth or cause wilting.

Best Time Of Day To Water Cannabis

Watering cannabis plants in the early morning or late afternoon/early evening is best for optimal nutrient absorption and mold prevention, while midday watering should be avoided to prevent wilting.

Early Morning

The early morning is considered the best time to water cannabis plants. This is because it allows for proper absorption of nutrients, which contributes to healthy growth.

Additionally, watering at this time helps prevent evaporation due to low temperatures and high humidity levels in the air. It also provides adequate moisture for the plant throughout the day as it undergoes photosynthesis.

Late Afternoon/Early Evening

Watering cannabis plants during the late afternoon/early evening can have its benefits. As the sun starts to set, the temperature drops, and water can be absorbed more efficiently by the plant’s roots.

Additionally, watering at this time allows the plants to absorb necessary nutrients throughout the night, promoting healthy growth. However, growers should avoid watering too close to sunset as excess moisture on leaves and buds overnight can create an environment for mold or mildew growth.

It is important to note that individual factors such as climate, soil type and plant maturity may affect when best to water your cannabis plants in order to achieve optimal health and yield.

Avoiding Midday Watering

It’s essential to avoid watering cannabis plants during the hottest part of the day. The intense sun and heat cause water to evaporate too quickly, meaning your plants won’t get much-needed moisture.

Midday watering can also lead to scorching, which will damage or even kill your plants. Instead, it’s best to water in the early morning or late afternoon/early evening when temperatures are cooler and there is less sunlight.

By avoiding midday watering, you’ll not only prevent unnecessary stress on your cannabis plants but also ensure that they receive enough moisture to grow properly.

Signs Of Overwatering And Underwatering Cannabis Plants

Overwatering can lead to wilting or drooping leaves, yellowing or browning of the leaves, and stunted growth or lack of growth, while underwatering can cause dry and brittle leaves that may also turn brown.

Wilting Or Drooping Leaves

Wilting or drooping leaves in cannabis plants can be a sign of both overwatering and underwatering. However, the appearance of the leaves will be different depending on the cause.

Underwatering can lead to extremely dry conditions that leave the plant thirsty and eventually cause it to wilt.

Aside from watering frequency, soil moisture retention also plays a crucial role in preventing wilting or drooping leaves in cannabis plants. It’s essential to allow some time for the soil to dry out between waterings because constant dampness promotes unhealthy growth and creates an ideal environment for mold and pests.

Yellowing Or Browning Leaves

Yellowing or browning leaves are common signs of both overwatering and underwatering your cannabis plants. Overwatered plants may start to show symptoms such as yellow leaves, droopy saturated foliage, slow growth, and wilting.

If left unchecked, this can lead to root rot and plant death.

To avoid these issues with your cannabis plants’ yellowing or browning leaves is an essential step towards successful cultivation. You need to understand the watering requirements of your plant at each stage of its life cycle while monitoring soil moisture levels to maintain a healthy balance for vigorous growth.

Stunted Growth Or Lack Of Growth

One of the most obvious signs that your cannabis plant is not receiving enough water is stunted or lack of growth. If your plant’s growth has slowed or stopped altogether, it could be an indication that you need to provide more water.

Cannabis plants require a steady supply of water to carry out photosynthesis and maintain their cellular structure.

Underwatering can also lead to other problems like dry and crispy leaves, withered buds, and reduced yield. It’s essential to give your cannabis plant just the right amount of water for optimum growth and health.

Proper Techniques For Watering Cannabis Plants

Use a watering can or drip irrigation system to water cannabis plants slowly and evenly, allowing the soil to dry out slightly between watering’s for optimal growth.

Use A Watering Can Or Drip Irrigation System

To ensure that your cannabis plants receive optimal water levels, it is crucial to use a watering can or drip irrigation system. These methods allow for precise control of the amount and distribution of water, which helps prevent overwatering or underwatering.

However, it is important to note that drip irrigation systems have some disadvantages. For instance, they may not cover all parts of the plant evenly, resulting in uneven growth patterns.

In addition, while hand-watering requires more time and monitoring compared to using a drip system or a watering can with an attached spout designed for indoor grow operations like Grow Room Supply Store’s products , it remains an effective way to provide consistent moisture levels throughout your cannabis garden.

Water Slowly And Evenly

When it comes to watering your cannabis plants, one important factor is how you do it. Watering slowly and evenly helps prevent overwatering or underwatering the plants.

See also  What Can You Do With A Male Weed Plant?

To avoid drowning your plants, make sure not to pour too much water at once. A good rule of thumb is to soak the medium until it is 25-33% saturated with water. This ensures that the root system receives all necessary nutrients without getting overwhelmed by excessive moisture.

Manual watering using cans, bottles, or hoses is a common method for providing water for marijuana plants but if you want a more efficient system try installing a drip irrigation system which provides slow and steady hydration over time.

Allow Soil To Dry Out Slightly Between Waterings

One essential tip for watering cannabis plants is to allow the soil to dry out slightly between watering’s. This is because overwatering can lead to root rot and stunt the plant’s growth, while underwatering can cause stress and wilted leaves.

The trick is to find a balance and avoid extremes by letting the top inch or two of soil dry out before watering again.

To check if your cannabis plant needs water, you can feel the weight of the pot, lift it up when it’s at its lightest, then compare that with how heavy it feels after watering.

Another way to tell if your plant needs water is by checking the color and turgidity of its leaves; yellowing or wilting may indicate underwatering, while browning or curling tips may indicate overwatering.

Water Quality And Cannabis Growth

Water quality plays a crucial role in the growth of cannabis plants, as using water with high levels of chlorine or other chemicals can affect the overall health and growth of the plant.

Importance Of Water Quality

Water quality is a crucial factor in cannabis cultivation, as water that contains unwanted components can have adverse effects on plant growth and product quality. Chlorine and chloramines are commonly found in tap water, which can interfere with nutrient availability and uptake by the plants.

High levels of dissolved solids or salts can also negatively affect plant growth by altering soil pH levels and causing nutrient imbalances.

In addition to water testing, maintaining proper pH levels is crucial for optimum plant growth results. The ideal pH range for cannabis plants is between 6.0-7.0; however, different strains may require slightly different ranges.

Testing And Treating Water

It is important to obtain a detailed water quality analysis from a qualified testing lab prior to using water for irrigation in cannabis cultivation. Here are some key steps for testing and treating water:

1. Test the Water – Have your water supply tested in order to determine whether or not it contains harmful contaminants such as heavy metals, pesticides, or microbial pathogens that could affect plant growth, yield, and quality.

2. Filter the Water – Install a filter on your water source that will remove contaminants such as chlorine, chloramines, and organic matter.

3. pH Adjustment – Cannabis needs a pH between 6 and 6.8 when growing in soil and 5.5 and 6.5 when growing hydroponically. Adjust your water pH level accordingly by using acid or alkaline solutions.

4. Add Nutrients – Depending on the type of soil or hydroponic system you use, you may need to add nutrients to your irrigation water for optimal plant growth.

5. Monitor Water Temperature – Keep an eye on the temperature of your irrigation water as very cold or very hot water can shock plants’ roots leading to stunted growth.

By following these steps, you can ensure that the quality of your irrigation water meets the requirements for healthy cannabis growth while also helping reduce pollution from nutrient-rich runoff that could impact local watersheds as well as avoiding legal issues around diversion of valuable freshwater resources for agriculture purposes which is becoming increasingly common where cannabis has been legalized.

Using The Right PH Level

Proper pH level is key to growing healthy cannabis plants. The ideal range for soil-based grows is between 6.0 and 7.0, while hydroponic setups prefer a slightly lower range of 5.5 to 6.5.

It’s easy to adjust the pH level with additives like lime or sulfur depending on whether you need to raise or lower it respectively.

Cannabis plants appreciate slightly acidic water with a pH value around 6.5 during watering, so keep this in mind when calculating how much additive you need for your grow medium and water supply maintenance routine.


Proper watering is vital for the healthy growth of cannabis plants. Considering factors like soil type, growth stage, and time of day can make a big difference in your plant’s overall health.

Remember to avoid overwatering or underwatering by testing the soil before watering and allowing it to dry slightly between waterings.

Using high-quality water with the appropriate pH level will also help prevent nutrient deficiencies and other problems.

FAQs – Whats The Best Time To Water Cannabis

Some common FAQs about watering cannabis include how much water the plants need, how often they should be watered, whether tap water is safe to use, and what happens if the plants are overwatered.

Q: Is it better to water cannabis in the morning or in the evening?

A: It is generally better to water cannabis in the morning, as it allows the plant to utilize the water effectively throughout the day and prevents excess moisture from staying on the leaves overnight, which can lead to mold or mildew issues.

Q: What is the best watering schedule for cannabis?

A: The best watering schedule for cannabis depends on factors such as the size of the plant, the growing medium, and environmental conditions.

Generally, water when the top inch of the soil is dry to the touch, which might be every 2-3 days for young plants and every 4-6 days for mature plants.

Q: Should I feed cannabis every time I water?

A: No, you should not feed cannabis every time you water. Nutrient feeding should follow a schedule based on the plant’s stage of growth and the specific nutrients being used. Overfeeding can lead to nutrient lockout and other issues.

Q: Is it better to water cannabis from the bottom?

A: Watering cannabis from the bottom can encourage deeper root growth and reduce the risk of mold or mildew on the leaves.

However, it is not always practical for large plants or outdoor gardens. Top watering can also be effective if done properly and in moderation.

Q: How often should cannabis plants be watered?

A: Cannabis plants should be watered when the top inch of the soil is dry to the touch. This might be every 2-3 days for young plants and every 4-6 days for mature plants.

Factors such as the size of the plant, the growing medium, and environmental conditions will affect the frequency.

Q: Is it better to overwater or underwater cannabis plants?

A: It is better to underwater cannabis plants, as overwatering can lead to root rot and other issues. Underwatering can cause some stress, but it is generally easier for the plant to recover from.

Q: How often should you water marijuana plants?

A: Water marijuana plants when the top inch of the soil is dry to the touch, which might be every 2-3 days for young plants and every 4-6 days for mature plants.

Factors such as the size of the plant, the growing medium, and environmental conditions will affect the frequency.

Q: How much should you water marijuana plants?

A: Water marijuana plants with enough water to saturate the root zone without causing excessive runoff.

This can vary depending on the size of the plant, the growing medium, and the size of the container. Generally, you should aim for about 20-30% runoff to ensure proper watering.

Q: How much watering is needed during the flowering stage?

A: Water your plants sufficiently so that the soil remains consistently moist but not waterlogged. The exact amount will depend on factors such as pot size, plant size, and environmental conditions.

Q: How much watering is required during the vegetative stage?

A: During the vegetative stage, water your plants when the top inch of soil feels dry. The frequency and amount will vary depending on factors such as pot size, plant size, and environmental conditions.

Q: What is the best time of day to water autoflowers?

A: The best time of day to water auto flowers is during the early morning or late afternoon when temperatures are cooler to minimize water evaporation and ensure maximum absorption by the roots.

Q: How much watering is needed for cannabis seedlings in big pots?

A: For cannabis seedlings in big pots, water them sparingly to avoid overwatering. Keep the soil moist but not waterlogged.

As the seedlings grow, gradually increase the amount of water provided.

Q: How often should you water plants during the flowering stage?

A: The frequency of watering during the flowering stage depends on factors such as pot size, plant size, and environmental conditions. Monitor the soil moisture and water when the top inch of soil feels dry.

How Much Water Does Cannabis Need?

A: Cannabis plants require a significant amount of water to grow properly. As a general rule of thumb, the root system should be provided with 25-33% of the pot capacity during each watering session.

However, it’s important to note that the frequency of watering may vary depending on several factors such as stage of growth, weather conditions and pot size. It’s always best to test the soil before watering to determine if your plant actually needs it or not.

Overwatering can lead to problems like root rot and stunted growth while underwatering can cause wilting and yellowing leaves.

Q: How Often Should I Water My Cannabis Plants?

A: Watering your cannabis plants too often or not enough can both have negative effects on their growth and development.

The frequency of watering will depend on various factors such as the medium in which they are growing, the stage of growth, and environmental conditions.

It is important to monitor the moisture level of the soil regularly using a moisture meter or simply by checking if it is completely dry before watering again.

Aim for when the top layer (1-2 inches) of soil feels dry to the touch but has not turned crusty or cracked.

Overwatering can lead to root rot while underwatering can cause wilting and stunted growth.

Q: Can I Use Tap Water To Water My Cannabis Plants?

A: Yes, tap water is one of the most commonly used types of water for watering cannabis plants.

However, it’s important to note that not all tap water is created equal.

The tap water used for growing cannabis should have a pH level suitable for the plant’s growth, which can be tested using a pH testing kit.

Tap water quality should be under 400 ppm and between 50-300 ppm in general, with serious water quality issues in the area if it exceeds 400 ppm.

It’s also crucial to keep in mind that chlorine and other chemicals found in tap water can damage or even kill cannabis plants if not properly treated.

Q: What Happens If I Overwater My Cannabis Plants?

A: Overwatering can be a common mistake for new cannabis growers.

When plants receive too much water, the roots struggle to absorb the nutrients they need, leading to nutrient deficiencies and slowing down growth.

As soil becomes increasingly saturated, it reduces oxygenation around the plant’s roots, turning them brown or black and preventing their ability to transport necessary nutrients up through the stems and leaves.

Prolonged over-watering can lead to root rot, which can damage or kill your cannabis plant altogether.


  • bitcoinBitcoin (BTC) $ 37,047.00
  • ethereumEthereum (ETH) $ 2,014.73
  • tetherTether (USDT) $ 0.999766
  • bnbBNB (BNB) $ 226.67
  • xrpXRP (XRP) $ 0.601778
  • usd-coinUSDC (USDC) $ 1.00
  • solanaSolana (SOL) $ 55.09
  • staked-etherLido Staked Ether (STETH) $ 2,010.31
  • cardanoCardano (ADA) $ 0.372007
  • dogecoinDogecoin (DOGE) $ 0.077211