Q.Can Dahlias Be Fertilized With Very Well-aged Horse Manure? Roses?
Zone Miller Beach (Gar,y but closer to Portage, Indiana) Zone 5B
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Anonymous added on
June 12, 2026
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Answered
I have asked several gardening websites this question with no success. Can you please answer? Thanks so much, Cher
GKH_Susan
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on June 15, 2026
Yes, you can, as long as it is well aged or composted first. The NPK is about .7-.3-.7. It is good for most all flowering and fruiting plants. Here is more:
https://www.gardeningknowhow.com/composting/manures/horse-manure-compost.htm
https://www.gardeningknowhow.com/backyard-stories/composted-horse-manure
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