Whether indoors or outdoors, growing marijuana is fun and rewarding, but it can also be challenging and takes a certain amount of patience, time, and money. We’ll walk you through all the steps of growing, from preparation, to seed germination, plant growth, and harvesting, as well as best practices and how to troubleshoot common problems.
Leafly’s complete marijuana growing guide
Growing outdoors is the cheapest and easiest way to grow, because you can utilize the power of the sun and other natural resources, but you need the proper space to do it, and the space needs to be able to get ample sunlight throughout the growing season. Often, you can let plants grow large and get big yields with more space outdoors.
Indoor vs. outdoor marijuana growing
*Illinois and Washington are adult-use states but require a medical card to homegrow.
Once your plant grows the first “regular” set of leaves, it’s pretty much officially in the vegetative stage. How long is the vegetative stage?
Growing indoors is much more private than growing outdoors and you also get more control over your grow.
Young growing cannabis plants grow fastest when the temperature is a bit warmer than a comfortable room temperature, around 70-85°F (20-30°C). But as long as it doesn’t get freezing cold or burning hot, your plants should be able to grow in a wide range of temperatures.
Step 6: How to Germinate Cannabis Seeds
These are the most common grow mediums:
It’s best that your plants get direct sunlight from at least 10am-4pm, and more light is better. Because of the high light needs of the cannabis plant (it needs more light than many other types of plants), it is not well suited to growing in a window (though I’ve seen plenty of growers start their seeds in sunny windows before moving their plants to a more suitable final location).
Soilless & Hydroponic growers – If you are growing in any medium besides soil, like a soilless mix or directly in water, you will want to get cannabis nutrients specifically made for hydroponics. Some nutrients are even more specific; for example, Canna Coco is formulated to work best for growing weed in Coco Coir. For hydroponic grows, I highly recommend the General Hydroponics Nutrient Trio – here’s the cannabis-friendly GH trio nutrient schedule I use with my cannabis plants.
Step 1: Choose Where You Will Grow (Indoors or Outdoors)
So far Rapid Rooters with a heat mat have given me the best germination rates of any method. They work with any growing medium, too – once the seedling has emerged, you can stick the cube directly into your growing medium or hydroponic system.
Cannabis legalization is spreading like wildfire across the US, Canada and in many other countries around the world. Many people are finally allowed to legally grow their own supply of cannabis!