It’s week 3 of flowering and your cannabis plants are starting to look a bit dried out. You may be wondering how often to water cannabis in week 3.
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The Importance of Week 3
The third week of cannabis flowering is when your plants will really start to pack on the weight. They will double or even triple in size, and their buds will swell and begin to rapidly fill out. At this point, your plants will be using a huge amount of water and nutrients, so it’s important to keep up with their needs.
Give your plants plenty of water this week, but be careful not to overwater them. You may need to water them twice a day, or even more often in hot weather. Let the soil dry out slightly between waterings.
You can also begin feeding your plants more nutrients this week. Cannabis plants love nitrogen during vegetative growth, but they start to use less of it as they enter the flowering stage. Instead, they need more phosphorus and potassium for robust bud development. Look for a nutrient formula that’s specifically designed for cannabis flowering, and follow the instructions on the packaging.
The Right Amount of Water
Giving your cannabis plants too much or too little water can be detrimental to their growth. Overwatering can lead to problems such as mold and root rot, while underwatering will stress the plant and cause the leaves to turn yellow or brown.
To ensure that your plants are getting just the right amount of water, stick your finger into the soil up to the first joint. If the soil is dry, it’s time to water. If the soil is wet, wait a day or two before checking again.
In general, marijuana plants need about 1-2 gallons of water per week in vegetative growth and 3-5 gallons in flower. However, these are just guidelines and you will need to adjust based on your particular growing conditions. If you’re unsure, it’s always better to err on the side of underwatering rather than overwatering.
When to Water
It is best to water your cannabis plants when the top layer of soil feels dry to the touch. You can also check the weight of your pot – if it is noticeably lighter than usual, that means it’s time to water. Be careful not to overwater – if you water too often, your plant’s roots will start to rot.
How to Water
The answer to how often to water cannabis in week 3 is the same as it is for week 2, and that is “when the soil is dry.” However, in week 3 you will need to water your cannabis more frequently because the roots are growing and the plant is getting bigger. By week 3, you should be watering your cannabis every other day or every third day.
