Growing & Care
Growing & Care
Tips and guides for successful growing and care of cannabis plants.
IndoorOutdoorBrown Spots on Cannabis Leaves: Causes and What Helps
Brown spots on cannabis leaves can result from calcium or potassium deficiency, from excess fertilizer and salt in the root zone, or from leaf spot fungi. Where the spots appear on the plant, a yellow halo, and pH and EC readings help narrow down the cause.Groot·Nov 4, 2026·9 min
BeginnerIndoorYellow Leaves on Cannabis: Telling the Causes Apart
When the lower leaves of a cannabis plant turn yellow, nitrogen or magnesium deficiency, overwatering, or leaf breakdown in late flowering are common explanations. The pattern of discoloration, pot weight and pH value narrow down the cause.Groot·Nov 4, 2026·8 min
HarvestIndoorOutdoorBud Rot in Cannabis: How to Identify and Prevent Gray Mold on Buds
Gray mold caused by Botrytis cinerea destroys cannabis flowers and often starts inside dense buds before any sign shows on the surface. This article covers symptoms, the conditions that trigger infection, and evidence-based prevention indoors and outdoors.Groot·Oct 26, 2026·7 min
BeginnerHarvestWhen to Harvest Cannabis Trichomes: Colour and Maturity Signs
Trichome colour, moving from clear to cloudy to amber, and stigma colour are the main signs used to judge cannabis harvest timing. This article reviews what peer-reviewed studies say about reading these signs and why trichomes on the same flower mature unevenly.Groot·Oct 24, 2026·8 min
AdvancedIndoorCannabis VPD Chart: Target Ranges by Growth Stage
What vapor pressure deficit measures, how to calculate it from temperature and humidity, and the kPa ranges commonly used for clones, vegetative growth and flowering in cannabis.Groot·Oct 23, 2026·8 min