Germination usually takes 1–3 days. During this time, your seeds will activate and send a root down into the soil and a shoot above the surface. To begin the germination process, you’ll need to prepare a suitable soil mix. Autoflowers don’t need as much nutrients as photoperiod varieties and prefer light and airy soil.
After you’ve prepared the mix, add some Easy Boost Organic Nutrition to the blend. These pellets will slowly release adequate levels of nutrition into the soil, providing foundational elements and minerals for the entire growing cycle. Add some mycorrhiza to the soil to help your plants flourish later down the line. These symbiotic fungi will bind to the root system and help your plants uptake nutrients more effectively.
However, their yields aren’t as spectacular as those obtained from photoperiod giants, but, the trade-off for brevity makes the decision worthwhile for most growers.
AUTOFLOWERING GROW GUIDE: HOW TO GROW AUTOFLOWERS WEEK BY WEEK
You can make your own potting mix using the following formula:
8 weeks, with subsequent weekly harvests when growing fast strains.
Learn to grow autoflowering cannabis.
By week 3, the seedlings show more leaves popping up. Most autoflowers display their sex at this stage, but if you’ve planted only feminized seeds, you don’t need to worry at all. If using regular seeds, however, it’s important to distinguish between male and female plants.
The seeds can then be transferred to a wet paper towel and stored in a zip-lock plastic bag. Within 1-2 days, the tap root emerges and the seeds are ready to be planted. Note that many growers simply stick their seeds in the soil, and you can follow the same route if you prefer.
Week 1 to Week 3
You can kill the plants faster by overwatering them. Not a myth; it’s a fact. So, go easy on watering. And, make sure that you supply enough water to keep the soil moist. Moist, not dripping wet or dry. As the process of photosynthesis goes on, new sets of leaves will appear.
Note that the plant is still in the vegetative stage and nutrients must be provided at full strength based on autoflower feeding schedule recommendations. Also, this depends on the type of fertilizer you’re using. For instance, if you’re growing organically, use organic nutrients according to the manufacturer’s instructions, but make sure that it contains more nitrogen.
If you’re using a brand that has two parts of Growth and Bloom fertilizers, use only the “Grow” part during week 4. Most brands of fertilizers provide the numbering of N-P-K to make it easy for you. For example, if you’re using Floraseries from General Hydroponics, only FloraGro and FloraMicro (micronutrients) should be used during this stage.
During the vegetation stage, the plants should be about six inches tall at this point. Photo by: Gina Coleman/Weedmaps
Late Flowering: Don’t be surprised to see a flower forming in every bud after two weeks into the flowering stage. Drop the humidity to 40 percent and reduce the temperature back to 68 degrees. Water with 1.5 liters and feed the plants three times a week.
Maintenance: It’s crucial to stop harmful intruders such as mold and spider mites, so check your cannabis plants daily and keep the humidity low at 40 percent. Maintain the watering and feeding schedule established in week six.
The disadvantages of growing autoflowering cannabis are more debatable, with some people claiming the harvest is lower quality. Others are concerned with the quality of the seeds before harvest and the possibility of purchasing those that do not in fact autoflower. Finally, some dwarf strains may produce disappointing yields, sometimes as little as half an ounce per plant.
Flowering: Sticky, resinous buds will make their first appearance during week five, giving you a preview of the bounty to come. Keep the humidity consistent at 45 percent but increase the temperature to about 71 degrees. Increase the water to a full liter each day and add supplement tablets twice a week. Look for those containing phosphorus, calcium, magnesium, and potassium.
Growing autoflowers can significantly speed up harvest time while delivering an ample yield of marijuana. Here are some autoflower pros and cons along with some growing tips to help you decide if this type of seed is right for your cannabis garden.
Just as harvest timing depends on the size and classification of autoflower plants, so does the amount of cannabis they yield. Regular plants tend to yield between 10 and 50 grams per plant, while the next level up, the super auto, can produce yields between 100 and 200 grams per plant. The abundant yield of a super autoflower can be a double-edged sword if you are working within the confines of a small space. So, use small spaces for regular autos whose yields are more manageable, and reserve larger spaces for those impressive super autos.