The yellowing of cannabis leaves is evidence of a plant condition called chlorosis (lack of chlorophyll) that makes the leaves of your cannabis plant wither and turn yellow.

Summer yellowing of Kentucky bluegrass and leaf yellowing in trees is caused by chlorosis, which is usually a lack of iron in plants but not a lack of iron in soil in eastern Nebraska. Chlorosis ...

Once you grow cannabis plants, you’ll notice that it develops leaves. These leaves get bigger as the plant grows, and are known as fan leaves. Sugar leaves develop slowly along with the buds.