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Iris Plants

Q.When To Fertilize Iris?

Zone Concord, CA 94521 | Anonymous added on September 25, 2022 | Answered

Good morning! When is the best time to fertilize iris?

GKH_Susan

Certified GKH Gardening Expert

Answered on October 3, 2022

You can fertilize them with a low nitrogen slow release fertilizer like 6-10-10 or something similar, one month before they bloom and one month after they bloom.

https://www.irises.org/gardeners/care-classification/care/

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Q.When To Fertilize Iris?

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