The first marijuana plant stage begins with the seed. A cannabis seed should feel hard and dry, and be light- to dark-brown in color. An undeveloped seed is generally squishy and green or white in color and likely won’t germinate.
Everything should be cleaned up, dried, and curing well before the Winter Solstice. Now’s a good time to make your own cannabutter, topicals, or tinctures with all that trim from the harvest. Kick your feet up, relax, and hunker down for the cold, it’s been a long growing season!
Notes on marijuana growth phases
Harvest happens sometime between September and November. This depends on your local climate, as well as the weather that particular year—one year it could be the end of September, the next, end of October, and growers in the Pacific Northwest will have to pull down their crops earlier than those in Northern California.
Within the flowering stage, there are three subphases:
Be sure to keep a grow journal to track the progress of your plants. Looking back on your notes will help you learn from mistakes and maximize the quality and quantity of your buds.
Most blogs and forums will tell you that your plants are ready to veg after two weeks, but that’s far from true; it usually takes about 3–4 weeks from germination for your seedling to use up all the energy stored in the seed, although some plants develop faster than others. But rather than going by time, we recommend you transplant and start vegging your seedlings once they’ve developed at least three nodes and 4–5 sets of true leaves.
• Leaf miners
• Going organic
HOW TO PREVENT DAMPING OFF
When growing autoflowers, we recommend planting them directly in their final pots. Because of their short life cycle, it’s best to avoid putting autoflowering strains through any kind of unnecessary stress, including transplanting. While the exact pot size you use will vary depending on the strain you’re growing and the size of your grow space, most auto growers use pots between 5–15l.
These small, black, fly-like bugs feed off your plants and lay their larvae in wet topsoil.
Make sure your pots drain well to protect your plants against fungal pathogens and root rot. If your pots don’t already contain holes (or some other kind of mesh to allow runoff), you’ll need to puncture them yourself.
Your plants will also begin to take on a definitive shape at this stage. For example, a sativa plant will become long and narrow, while an indica will be shorter, bushier, and denser with foliage. The sexual characteristics of your plants will also become apparent and you can differentiate between the males and the females now. By the end of the vegetative stage, female plants will exhibit two white pistils and male plants will grow pollen sacs. Be sure to remove these pollen sacs to avoid contaminating your female plants.
Duration: Varies; May begin in spring to anticipate a fall harvest for outdoor plants or start in any season for indoor plants.
The key is balance when nourishing a weed plant. All-in-one mixes tend to be too broad, while overloading with one single nutrient, even those in the NPK group, could be hazardous to the plant’s health.
Also called the vegetation phase, the vegetative stage marks a significant growth spurt for your seedlings, which you will need to transfer to larger pots. Growth occurs rapidly during the vegetative stage, with vertical growth especially pronounced. Can you imagine your plant growing two inches taller in just 24 hours? It could happen!
A precision pair of pruning scissors is your most useful tool at this stage. Whereas a heftier pair of scissors is appropriate at harvest, a more delicate pair does the job for pruning. A pair of gardening gloves is also helpful to protect your hands from the sticky resin of the buds.
Here we outline each of these important stages in the growth of a marijuana plant and share how you can oversee each one to optimize your crop. Measuring the nutrient feed is the best way to ensure that you are not overloading your plant with any one element or skimping in one area either.
A slightly lower temperature is ideal during this phase. When your plants were seedlings, you maintained a temperature of 77 degrees Fahrenheit, but now you can adjust to a range of 68 to 77 degrees. Humidity may also vary more, with 50 to 70 percent sufficient. Give your plants ample light: at least 16 hours a day and as many as 24 continuous hours. Finally, keep feeding your cannabis plants with nitrogen-rich fertilizer.