Can I Use Chicken Fertilizer on My Mexican Palm Trees?
When is the best time to fertilize my shrubs/trees?
Certified GKH Gardening Expert
You can use chicken manure as long as it has been well rotted. This article will help with that:
Spring is a great time to fertilize, as the plants will be heading into a growth period and then a few times through the summer and early fall. You want to back off of fertilizing in the winter (even in warmer areas) as the plant's growth slows some during this time.