The best method is to place your plant near by a sunlit window if the climate you live in allows for enough sunlight during some months.
Best light to grow one pot plant.
When growing cannabis a good rule of thumb is to use a minimum of 50 watts of light per square foot of grow space.
Light color also called light temperature is described in kelvin.
Then using a simple fluorescent bulb cfl s t5 s t8 s you can supplement the extra light needed to keep the bud lit up even when the sun goes down.
Position this grow light above or next to plants at any stage of growth including seeding vegetative or flowering for a boost of full spectrum lighting.
However how do you know the exact wattage of light you require.
Therefore we need to calculate the square footage length x width of our grow space.
While you can somewhat increase the intensity by moving the grow lights closer to the plants it s best to choose a high intensity grow light from the start.
Lower powered lights such as a 250 watt led grow light should be kept 12 24 inches above the top of the canopy.
If your plant is not receiving enough light you will clearly know because it will begin stretching and reaching upwards having more upward growth than outward growth.
For example if you re growing a single plant a 1000 watt grow light will produce a larger yield than a 300w watt light.
The cycles or periods of time during which your plant receives light is also important.
The best lighting option for a marijuana plant is a 250 watt hid lamp so it may be worth it nonetheless.
Generally speaking the higher the wattage of the grow light you use the more weed your plant will produce.
The most important general rule to remember about light and cannabis cultivation is that red spectrum colors induce flowering while blue spectrum colors promote growth.
Cultivate healthy plants year round with a full spectrum grow light like our top overall pick the roleadro led 75w grow light.
Many indoor growers will give their plants 24 hours of light while in vegetation to ensure their girls grow as big as possible.
High intensity lights are superior for growing cannabis because they produce more dense compact and higher yielding plants.
Mid range lights such as a 600 watt or 900 watt led grow light should be 14 36 inches from the top of your plants.
We want to flood our plants with light food so that they have lots of energy to produce big potent buds.
The summer time is the best for this process.
Flowering plants need more red light as supplied by hps lights.
The cfl lamps are available in red blue and mixed colors.
2700 k is a very red spectrum for flowering.
6400 k is a cool blue green light as needed for growth.