I’d save myself the hassle and just avoid them at this point, unless you already have experience in growing with HID. In that case, I say “why change what’s working?”, but I doubt anyone with a lot of experience is reading this article anyway.
You can certainly make your own soil mix, but I feel it is not worth the trouble. Perhaps it is something to look into down the road, but for now, I’d just go with a pre-made soil mix.
You should be fine using tap water for your weed plants. But you do want to know what is in it.
During cloning and vegging, marijuana likes a temperature between 70 and 85°F (20 to 30°C). The ideal relative humidity is 70% during cloning and 40 to 60% during vegging.
To grow weed indoors, you’ll want an enclosed space that allows you to control the environment and also to keep out prying eyes and other pests (even if it is legal, the fewer people who know you are growing, the better; theft is unfortunately all too common).
Container And Medium
The first thing you need is a space in which to grow. This space can take any number of forms.
In this article, I will focus on growing in soil or a hand-watered soil-less medium, since both are much simpler than a hydroponic system. For this type of garden, you will need a container for the plant and a medium for it to grow in.
HID (high-intensity discharge) lights are the industry standard, widely used for their combination of output, efficiency, and value. They cost a bit more than incandescent or fluorescent fixtures, but produce far more light per unit of electricity used. Conversely, they are not as efficient as LED lighting, but they cost much less.
Because the amount of light a plant receives is so important, you’ll need to make your indoor grow space light-tight. Light leaks during dark periods will confuse your plants and can cause them to produce male flowers or revert to a different stage.
It’s also a good idea to have oscillating fans to provide a constant breeze in your grow room as it will strengthen your plants’ stems, making them stronger and healthier.
While this is true to an extent, there is such a thing as “too much water.” Overwatering your indoor cannabis plants can prove detrimental to their productivity, and potentially stunt or kill them!
There’s no doubt a bit of a learning curve involved. You’ll make your fair share of mistakes. However, trust us when we say it’s all worth it in the end.
Like most living things, cannabis plants need their “rest time.” If light from a surrounding source is seeping in during dark hours, the (bud-producing) females could get confused and develop hermaphroditic characteristics.
Lastly, consider using an RO filter as excess levels of chlorine and unfiltered minerals could harm the plants. You may want to choose a distilled option or at least filter it before adding it to your soil. Mineral-laden tap water can cause unwanted build-up in the cannabis root systems, which can lead to detrimental root disease.
Step 6: Choose a “Canna-tainer” (Container) to Grow Your Cannabis In
Whether you’re using an organic soil mix or growing hydroponically, your cannabis plants need the “super seven” macronutrients. In no particular order, these are:
Make sure you have consistent airflow across your entire plot. Depending on the size of your grow room, you can achieve this easily. Utilize several types of fans, including oscillating wall mount, stand fans, and box fans. Place them strategically to create good air flow throughout the space.
We also recommend investing in a pH meter to check on the quality of your water and soil regularly. If you’re growing in soil, try to keep the pH between 6 and 7, with the sweet spot being 6.2-6.5. If you’re growing hydroponically, 5.5 to 6.5 is an appropriate range with the sweet spot of 5.8-6.0.
Final Thoughts on Growing Cannabis Indoors
If you’re growing from seed, you need to wait until the flowering stage. After a week of nighttime photoperiod, the plants will start reaching maturity and will develop reproductive parts at the nodes.
The frequency of watering and the amount you give is determined by a few obvious things. These include the size of the plant, the stage of development, and the rate of photosynthesis (how fast it’s growing). However, there’s no exact science when deciding how much water to give and how often.