Need to fertilize bougainvilleas that are in a part shade area. What type of fertilizer should I use? Have Mericlegrow regular and acid liquid and regular shrub granuals.
Certified GKH Gardening Expert
Any all purpose slow release will be perfectly fine. This article is for container plants, but will apply no matter where they are: https://www.gardeningknowhow.com/ornamental/vines/bougainvillea/bougainvillea-in-containers.htm