using cottonseed meal to feed roses
When using cottonseed meal to feed roses, are other fertilizers also needed as supplements? Is cottonseed meal considered to be a complete rose food, or should additional substances/fertilizers be used along with cottonseed meal?
Certified GKH Gardening Expert
This article should be of some help: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/cottonseed-meal-fertilizer.htm