Most weed growers start seeds in small 4-inch or 1-gallon pots when germinating.
To do so, follow the steps above, and make sure the new container is at least twice as big as the old one, if not bigger.
When to transplant marijuana
Transplanting gives a marijuana plant’s root system more space to spread out, allowing the plant to grow healthy and strong and to flourish.
Some growers may only transplant once: using the example above, from a 1-gallon to a 5-gallon container, skipping the 2-gallon. And depending on how big you want your weed plants to get, you may transplant into bigger pots than what’s listed above.
Growers typically start off the cannabis growing process by planting many seeds in small pots because they don’t know if all of them will sprout—or germinate—and they don’t know if all of them will be female.
The reason some growers transplant their plants instead of starting them in their final container is that seedlings usually grow faster during the first few weeks of their life if you start them in something small like a solo cup. The growing medium dries out much faster in a smaller container, which means your seedling roots are always getting access to lots of oxygen at all times. It also makes it more difficult to overwater your plants!
Your seedlings will take off in a day or two, and soon it’ll seem like they’re growing more and more each day!
4.) Transplant to an even bigger container if desired
Now you just allow plants to grow!
Go Bigger If You Need to Spend Time Away From Your Cannabis!