Black Widow is a medium-to-tall cannabis plant with moderately dense foliage. Just like White Widow, her genetic twin, this strain produces above-average resin production that gives her flowers a shimmery white surface once at the peak of their potency. To achieve these beautiful, highly resinous buds using regular seeds, growers must weed out males as soon as they appear. If that’s a hassle you want to avoid, one of two options is to grow her feminized seeds instead.
As the plant grows and develops her foliage, you may do a bit of pruning to ensure enough light penetration and air movement. This helps prevent moisture accumulation and high-moisture related issues. By getting rid of some lower branches and less promising flowering sites, the plant gets to use more energy in developing the bud clusters in the upper canopy, resulting in heavier yields.
This strain can be grown indoors, outside, or in greenhouses. Female Black Widows that stem from regular and feminized seeds mature up to 3 feet in a controlled setting, producing 350 to 450 grams per square meter after 7 to 9 weeks of flowering. On the other hand, a sun-grown BW can grow up to 6 feet tall and share around 300 to 400 grams, which can be collected by October in the northern hemisphere.
Feeding Black Widow females with high amounts of nitrogen during the vegging period promotes optimal growth. Once the strain starts flowering, you may flush out the excess nutrients to prepare the cannabis plant for phosphorus-drenched solutions.