Growing indoors is almost always faster than growing outdoors, mostly because you can control the lighting. You can tweak a few other things in the name of speed too.
This is a hotly debated topic, but you can leave your lights on 24/7 and your cannabis plants will be just fine. Unlike some other plants, they don’t need a dark period each day to be healthy. In fact, they’ll stay shorter, grow faster, and get bushier under a continuous light period.
Cannabis needs more nitrogen (N) when vegging and more phosphorus and potassium (P & K) while flowering. If you give then too much nitrogen during bloom, it’ll slow down bud growth and result in lower yields of fluffier buds. That’s the exact opposite of what you want!
Cover your outdoor plants with a tarp or other light-proof cover in the early evening and remove it the next morning. This works just like a grow tent to give your plants 12 hours of darkness each day to force them to bloom. As a bonus, you’ll end up with bigger, denser, more resinous buds when you’re done because the sunlight they do get, during the height of summer, will be much more intense than what they would receive during the fall months when outdoor cannabis plants normally bloom.
If you want to grow cannabis as fast as possible, choosing a seed that’s been bred to mature quickly is key. It’s only common sense that it will be easier to hurry along a strain that will finish on its own in 7 weeks than one that prefers 12. Luckily, fast strains have been bred to meet every need and preference.
Planting clones rather than germinating seeds yourself will save a couple of weeks. Clones are plug plants that are sold with an established root system, so all you have to do is pop them into the soil. The downside is that clones are genetically weaker and less likely to survive than plants grown from seeds, as they are more likely to succumb to pests, mold and disease.
It may sound obvious, but one of the easiest ways to reach harvest quickly is to choose seeds with short flowering times. Always buy seeds from reputable and established sellers who will display growing and flowering times on their websites. The aforementioned Northern Lights feature a two-month flowering phase, while others, such as Sour Diesel need to flower for more than 2,5 months. Strains with longer flowering times generally tend to perform better outdoors because they receive more sunshine. However, varieties with short flowering phases often produce cannabis of equally good quality.
Another method is to switch your plants to 10 hours of light per day, which will encourage your plants to ripen more quickly. This method works best on Indica varieties which have a shorter flowering cycle than Hazes and Sativa’s, as well as higher yields.
5. Start pruning
A practical solution, if you are really impatient, is to cut short the vegetative phase. The yield will be less but much more than by entirely skipping the vegetative stage. Let your plants vegetate for a shorter period than that accepted in order to switch to flowering more quickly. The yield will certainly not be extraordinary, but always more than by making the plant flower from the sowing stage. It could take three more weeks, for example, in which case you will be able to harvest after about 14-15 weeks.
However, there are consequences mainly relating to growth. The buds will stop growing, which will affect the yield, although the THC content won’t necessarily be affected. Plants grow during the hours of daylight so if these are reduced to speed things up, the harvest will inevitably be smaller.
You have to decide whether you want more weed or faster weed. It’s a question of weighing up the balance between your patience and the final result. If you are keen to learn how to make weed grow faster, we’ve compiled our favorite tried and tested tricks to help you reap the rewards of your labors in as little time as possible.
When your cannabis plants receive less than 13 or 14 hours of light a day, they will automatically start to flower. In the natural world, harvest occurs in the autumn, when the hours of daylight begin to decrease. Indoors you can mimic this and speed up the time of harvest.