Cannabis Light Cycles
Light Cycle for Vegetative Cannabis
A marijuana plant requires between 18 and 24 hours of light per day.
This allows the plant to grow as much as possible before the grower induces the flowering stage.
The longer the vegetative growth period, the stronger the plant will be and the more bud it will yield.
During vegetative growth, you should supply your plant with 400 to 600 watts per square meter.
You should ideally be using metal halide or fluorescent lighting.
Stretching occurs when plants seek out light. This diverts energy that could be used for flowering sites or flowers themselves.
Makes sure to keep the plants as close as possible to the lights to avoid stretching.
Plants in vegetative growth thrive in nitrogen rich environments. Nitrogen can be added as fertilizer or mixed into the soil.
During the vegetative stage, Marijuana plants prefer water with a lower ph level.
This is because nitrogen is more easily absorbed between the levels 5.6 and 5.8.
Another important point is that the grower should allow the soil to dry out thoroughly. Although this may seem counter-intuitive,
a lack of water causes the roots to grow deeper in search of water.
Ultimately this creates a healthier root ball, which turns into a stronger plant and more bud.
This should be done once or twice during the vegetative cycle.
You can keep your plant in vegetative growth until it has reached your desired size.
At that point you may change the Cannabis Light Cycles requirements to the appropriate levels for flowering.
Light Cycle for Flowering Cannabis
The flowering period is when the female plants are ready to be pollinated by the male plants.
The natural conditions the bud is where the seed will form. However, by removing the male plants from the equation,
the flowers remain unfertilized and thus seedless.
Flowering is induced once your plant has reached the desired size. When you have decided to initiate flowering
you must change the photo period – that means changing the Cannabis Light Cycles to 12 hours of light and 12 hours of dark.
During the flowering period, the plant is looking for more intense lighting. For the grower, that means
600 to 1000 watts per square meter – the ideal lights for flowering are high pressure sodium or HPS bulbs.
In the flowering stage, the main nutrient the plant needs is phosphorous.
It can be mixed into the soil or added as fertilizer. Pay close attention to the
ph of your water during the flowering period as the marijuana plant is looking for a higher ph, between 6.0 and 6.2.
Indica dominant strains will tend to have a shorter flowering period between 7 and 9 weeks.
For Sativa dominant strains the flowering period is longer, generally between 9 and 14 weeks to reach maturity.
A ripe marijuana flower, or the “bud,” is ready for harvest when the tricomes on the surface begin to degrade.
In layman’s terms, the tricomes are the sticky, oily resin that forms on the buds, they are commonly referred to as crystals.
This is shown by a change in color from clear to the milky white or amber.
During the final 7 to 14 days of the plant’s flowering cycle,do not add any more fertilizers or nutrients to the growing medium.
Only add fresh water. This well help to lower the fertilizer content of the plant giving a cleaner smoke.
more on cannabis light cycles here