After you have planted marijuana (like truenorth seeds), the next question now is how long does it take to grow marijuana. Depending on the type of seeds you planted, the method of growing and the amount of light you provide, marijuana plants can be harvested between 8.5 weeks to more than 7 months after planting.

As the plant grows, you need to maintain the amount of light and the height of the lights to keep up with the plant height. You need to lower down your light so that it is nearer to the marijuana plant instead of making the plants reach for lighting. As your weed grows, you need to increase the height of the lights as well as increase the amount of lighting. You will also need to set the light clock to be on 18 hours and off for 6 hours every day. During its leafy growth stage, the weed will grow its leaves and twigs without any flowers unless it is na auto-flowering variety.

You must avoid overwatering and overfeeding the weed. It is easier to put more water or nutrients to the plant than it is to remove them. Marijuana roots grow well in a wet/dry cycle. When you lift plants from the pots, you will get a better understanding for if the plants need more water or not judging by their weight. The first signs of overstuffed plants are the brown leaf tips. Using smart pots for marijuana allows you the freedom let the plant grow unaided. Cultivating marijuana requires that you know to stay away from it sometimes. You have to let the plant grow on its own.