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Q.When Is The Best Time To Start Fertilizing Established Knockout Roses Each Year?

Zone zone 5 | rieichan214 added on March 23, 2023 | Answered

I have read late winter/early spring but I’ve also read to wait until after the first wave of flowering which got me confused

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BushDoctor
Certified GKH Gardening Expert
Answered on March 23, 2023

Many gardeners prefer to wait until mid to late Spring. After this, the schedule can be a little confusing. Here is are some articles that will help:

https://www.gardeningknowhow.com/ornamental/flowers/roses/rose-fertilizer.htm

https://www.gardeningknowhow.com/ornamental/flowers/roses/best-rose-fertilizer.htm

https://www.gardeningknowhow.com/ornamental/flowers/roses

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