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watering marijuana seeds

Then there is the question of which nutrients, if any, to add to the water you’re using. There are as many preferences as there are growers when it comes to nutes, but being cautious is always a good idea. Nutrient deficiency harms plant development over time. Overfeeding can cause ‘nutrient burn’, which will also prove fatal in the long run. Here too, the grow medium makes a big difference. In potting soil, for instance, many of the important nutrients are already naturally present, whereas rock wool offers no nutrition at all. As mentioned earlier, many indoor growers automatically use premixed vats of water and nutrients, with different composition for growth and flowering stages, specifically attuned to what the plants need at any given time.

Another method to check whether the soil is dry is to weigh your pots. Put your pots on a scale while the soil is dry. Now, water the plants and weigh again. Regular weight checks are a good indication of when it’s time for watering.

Spraying water is better for young plants.

How Much Water Does A Cannabis Plant Need?

2) Plants need water for photosynthesis. That means without water, plants would have no energy to store, or to use for growing and flowering.

Ideally, the purest and – according to many – best water quality comes with purified reverse osmosis (RO) water. This can be tricky to come by in large quantities, however, so we are just going to leave the suggestion here and repeat that generally speaking, clear tap or rain barrel water will do nicely.

Especially when growing weed indoors, water quality makes all the difference. This is where individual approaches differ considerably, though, mainly because many weed growers only have access to regular tap water. Of course, tap water quality varies wildly between regions and countries, but generally speaking, cannabis plants can handle whatever spills from the tap. Growers living in hard water areas (where groundwater and tap water contain high levels of calcium) may want to purify their cannabis water supply to prevent mineral deposits, though. Weed can suffer from calcium and other mineral deposits. High-tech indoor growers should note that mineral deposits can damage automatic irrigation systems too.

For indoor growers, the best course of action is determining their own wet-to-dry cycles. Do keep in mind, however, that plants will finish their water rations faster as they grow bigger, or if temperatures rise for instance. Indoors as well as out, paying constant attention to water conditions remains crucial.

This stage — moving from germinated cannabis seeds to cannabis plants with the maximum number of ridged edges per leaf — is the seedling stage.

But what does that TLC look like? What steps do you need to take to support your cannabis seedlings through the seedling stage and as they grow into mature marijuana plants?

Choose the right container

The seedling stage can be an especially vulnerable time in the growing process. The cannabis seedling is in need of a lot of TLC to grow into a healthy cannabis plant.

If you notice any of these issues with your plant, it could be the result of too many or too few nutrients. You’ll need to adjust your growing strategy to support your plant’s health.

Your cannabis seedling needs space to grow. But too much space and too little space can both create problems for your plant.

2) Close seeds inside the matchbox.

5) Check moisture level of towels several times a day, watering once or twice to keep them evenly moist. DO NOT LET THE TOWELS DRY OUT! Let excess water drain away freely. The paper or cloth towels will retain enough moisture to germinate the seeds in a few days. Each seed contains an adequate food supply for germination. Prevent fungal attacks by watering with a mild 2 percent bleach or organic fungicide solution.

1) Set seeds in a matchbox with an emery board or sandpaper on the bottom.

Other Tips for Germinating Cannabis Seeds

2) Remove seeds from the water. Pour water out onto two paper (or cloth) towels on a dinner plate. Fold the towels over the seeds to cover them.

The gardening season is booming in North America, and it’s high time to start some tiny seeds that can grow into potent plants, says Jorge Cervantes, veteran marijuana cultivator and author of “The Cannabis Encyclopedia”.

Over and under-watering are the biggest obstacles most gardeners face when germinating seeds and growing seedlings. Keep the soil uniformly moist but not waterlogged. Do not let the growing medium’s surface dry for long. Setting root cubes or planting flats on a grate allows good drainage.

6) In a few days, seeds will sprout. Once the germinating cannabis seeds have sprouted and each seed’s white rootlet is visible, use tweezers to carefully pick up the fragile, germinated seeds and plant them. Do not wait for the white rootlets to grow more than 0.25 inches (1 cm) before planting, or growth could slow. Plant each germinated seed with the white root tip pointing downward. Take care not to expose the tender rootlet to prolonged light and air. Cover germinated seeds with 0.25 to 0.5 inches (1-2 cm) of fine, moist planting medium.