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Garden

How to Fertilize Roses: Complete Guide

Penn State Extension

Start fertilizing roses when new spring leaves reach 2 inches long. Apply 1/4 cup of rose fertilizer per plant, scattered around the drip line (not against the stem). Water deeply before and after application. Repeat after each bloom flush throughout the season. Stop fertilizing 6-8 weeks before your first expected frost date to allow plants to harden off for winter.

What You Need to Know

Start fertilizing roses when new spring leaves reach 2 inches long. Apply 1/4 cup of rose fertilizer per plant, scattered around the drip line (not against the stem). Water deeply before and after application

Repeat after each bloom flush throughout the season. Stop fertilizing 6-8 weeks before your first expected frost date to allow plants to harden off for winter.

For personalized recommendations based on your specific garden size and fertilizer, use our fertilizer calculator.

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