One issue with watering plants is that it isn’t really an exact science, and many different factors contribute to how much you should administer. As an obvious example, as your plants get bigger, their watering needs will change. But there are other, more complex variables that also determine how much or little you should drench your plants. Let’s discuss some of the most vital:
In the early stages, avoid watering your plants with a powerful stream that might knock them over and disturb developing roots. Instead, use a light mister to gently moisten the substrate.
STAGE OF GROWTH
The type of growing medium you use largely determines how much water the soil can hold, and drainage plays a huge role in how often/how much you water your plants. Cannabis likes rich yet airy and “fluffy” types of soils that are well-draining. As another consideration, the growing containers themselves must have holes punctured in the bottom to allow the water to escape. More compact soil mixes will hold moisture much longer, so they require less frequent watering as a result. Otherwise, moisture can linger in the soil for some time, which can lead to nutrient deficiencies, root rot and fungus, pests, and a whole lot of other problems.
Cannabis plants have different watering demands depending on their stage of maturity. The specific guidelines we share below apply to mature vegetating and flowering plants. Seedlings and clones require much less water.
A very simple way to tell if your weed plants need water is to purchase a soil monitor which can inform you of the moisture content in the water.
Yet another factor which goes towards determining how often your weed plants need to be watered is how well ventilated the grow room in question is and what kind of airflow you have going on.
Having good drainage is important because if the soil holds water for way too long and it never dries out, not even a little bit, then things like fungus, mold, and root rot can occur, all of which can put your weed plants in serious trouble.
A Soil Monitor Is Your Friend
How do the plants themselves look? Most often, brown, dry, and shrivelling leaves are a pretty good indication that your marijuana plants are not getting enough water.
One very important growth factor when it comes to pot plants is watering, both how much and when. So, how often do you water marijuana plants?
If you have this, chances are that watering your weed plants every 2 days will be more than enough. Just keep in mind, you need a good mix between drainage and water retention.
There are a couple of easy ways to tell whether or not your pot plants are thirsty;
Once it germinates though, how often you should water marijuana seedlings varies according to the temperature of where the marijuana seeds are growing, but as a rule of thumb, you should water the marijuana plant once the soil is dry. An easy way to tell is if you try and lift the edge of the pot with one finger; if it feels “light” then it’s time to water, if not then leave it a few more days to evaporate and check back often to water. Usually, when you follow this technique, it helps with the formation of trichomes on your marijuana plants during the flowering phase which is equal to dank-er flowers.
After the hassle of choosing a seed and getting it to sprout then grow, another of the big questions is how often should you water marijuana seeds until they germinate. You should not water marijuana seeds once you place them to germinate in a warm moist place. If you give your marijuana seeds water very often you will drown the seedling and it won’t be able to crack out of its seed.
You might also find our FAQ submission How Do I Feed A Plant? useful!