Do Your Plants Have Chlorosis?

Chlorosis can appear as an overall yellow cast to the leaf, or interveinal chlorosis (yellow between green veins) as shown in the photo – due to a lack of chlorophyll. Chlorosis signals potential nutrient deficiencies (iron, manganese, zinc); it can also signal poor drainage, soil compaction, or high soil or water pH.

To prevent cholorsis, feed your seedlings once per week at low doses, or every two weeks if you have bumped up to a stronger feed.

Gardening Under Lights Book