Food And Nutrients For The Marijuana Plant
Marijuana plants require food to grow. The three main components are nitrogen (N), phosphorus (P), and
potassium (K). These are needed for strong root growth, strong vegetative growth, and for lush, full flowering and
Most potting soils come with a balanced NPK ratio that will sustain
a plant for the first 2-3 weeks. However, as the plant grows taller and wider, supplemental nutrients are
In the vegetative stage, a good 20 - 20 - 20 supplement is often adequate to maintain
proper growth and development. Most growers dilute this formula to one-half or one-quarter strength, as marijuana
does not tolerate full-strength nutrient feedings well. This can be given once or twice a week, although some
growers use it at every feeding.
In the flowering stage, a higher ratio of
phosphorus is needed to promote and encourage flowering, as these flowers are the bud sites, and the number of
flowers affect the end yield. Phosphorus alone, or phosphorus in a higher ratio - 10 - 30 - 10, is often used in
Secondary foods that the marijuana plants need are calcium, sulphur, and magnesium. These foods
ensure that plant photosynthesis is maintained, allowing strong growth and good development.
The trace minerals a plant needs are boron, copper, molybdenum, zinc, iron and manganese. The
marijuana plant takes up a minimal amount of these elements, but they are essential to the overall well-being of
All these nutrients work together to maintain healthy growth and development. Plants will grow poorly or not at
all if deprived of any one of these nutrients. If the lack is severe, the plant may go into nutrient lockout, which
is the lack of one nutrients blocking the uptake of all the rest, thus causing the plant to die.
Careful, occasional assessment of your plant will determine whether it is healthy and stable,
or lacking in any of these nutrients. These problems are easily fixed, but correcting them is very essential to the
continued growth and development of your plant.