When setting up something like a small CFL closet grow, you might want as little light as possible. Each cannabis plant will require around 80 watts of light, with more being better. Using 2 40 watt CFL bulbs is sufficient for a mini CFL grow.
You can grow marijuana with CFL grow light bulbs in soil or hydroponically. Regardless of the growing medium, light needs remain the same.
Let’s take a look at CFL lights for growing weed. There are quite a few options for lighting when looking to grow cannabis indoors. CFL lightbulbs are becoming more popular because they are beginner-friendly and easy to use. The best CFL lights for growing weed will help you produce more marijuana in small spaces than you thought was possible. If you have a small space that you want to utilize for growing ganja, CFL lights may be the best option!
While the wattage of the light produced by the CFL bulbs is more important than the spectrum of light, optimizing the spectrum is a good idea.
How Many CFL Lights For One Plant?
Many novice cannabis growers do great with CFL setups during the vegetative stage but fail when the plants go to flower. If you want bigger, denser, more potent buds, you need maximal light intensity.
To get big, productive buds when using fluorescent light bulbs for growing weed, you need the most light intensity that you can produce. This is the most important factor when flowering with CFL lights.
Growing cannabis with CFL lights is simple to set up and maintain. Each plant will require around 80 watts of light, although more can be better. Since CFL light bulbs for plant growth don’t produce enough light exposure beyond around 12 inches, the lights will have to be adjustable with height to account for plant growth.
CFL Light Bulbs For Growing Weed
Using CFL bulbs allows you to use daylight mimicking CFL bulbs during the vegetative stage of the plant’s life and use a softer light for the flowering cycle. You don’t want to use a soft white CFL for vegging as it is closer to the sunlight in Autumn when plants start to flower. However, if soft white is all you can find, it will still work as long as you have enough wattage to supply ample light to each plant.
Investing in a timer to turn the CFL lights on and off on an optimal schedule for the plant’s stages of life is a good idea. It’s also a good idea to invest in high-quality growing medium and nutrients to improve yields.
You will want to stop feeding your marijuana any nutrients for the last two weeks before harvest to ensure the best tasting bud. Simply feed them plenty of water without nutrients for these last two weeks, but make sure you’re still adjusting the pH so they absorb any leftover nutrients in the coco coir.
To initiate the flowering stage, you will switch your light schedule so that your lights are on for 12 hours a day, and off for 12 hours a day.
Yields to Expect: 1-3 ounces/plant (if you follow the directions in this tutorial)
When your cannabis plants are about half their final desired height, you will change them over to the flowering stage so they start growing buds.
You’ll likely need to add CFLs a little as a time while your plant grows, but by the time the plants are flowering, you definitely want more light than your original two bulbs to get your plants to produce lots of bud. Light is what gives your plant energy, and the more energy it gets, the bigger buds it will grow.
Even if you end up eventually moving on to other types of growing systems, you will be able to use many of the materials from this system with your future grow.
Optionally fill the first couple inches of your pots with perlite for extra drainage, and then fill the rest of the pot with coco coir.
The 12-12 light schedule will cause your plants to begin the flowering stage and start focusing on making buds instead of just growing.
This system reduces many of the problems associated with an indoor soil grow, and is also much easier than almost any other hydroponic style grow.