
GKH_Susan
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on June 26, 2020
We don't endorse or recommend specific products, but you should look for 10-10-10 granulated slow-release fertilizer at your garden center and follow the directions. Here's a helpful article:
https://www.gardeningknowhow.com/ornamental/shrubs/spirea/growing-spirea-shrubs.htm
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