Treating and Feeding Roses - May 2025

Last year, we had trouble with our Disneyland Roses. Between pests (Sawfly Larvae), diseases (Black Spot and Rust, I think) and drought, the blooms were few and far between. I fed them and treated the foliage with Neem oil, but I'm not sure I was making an impact.  They say that roses are "heavy eaters", so I've been trying to feed them monthly during their growing season the past few years, but I switched over to an "all-in-one" granular product last year.  These "all-in-one" claim to feature three different solutions:  fertilizer, pest control and disease control.   

Below is canister of the granular that I recently applied from BioAdvanced named Rose & Flower Care. 

3-in-1 rose treatment: fertilizer, insect control, disease control granular applied

The instructions say to use a half-capful of the granular around each rose.  I sprinkled it around the crowns of all five Disneyland roses then used a small rake to work it into the mulch.  

3-in-1 rose treatment: fertilizer, insect control, disease control granular applied

Last year, we were showing the first flush of Roses by the end of May.  I'm pretty sure that - like everything else in the garden - these roses might have been a bit further along than normal.  

This marks the first feeding of the year; I've added a note to my calendar to feed these at the start of every month for the balance of the growing season/summer.  Despite the label saying that this product will last "up to six weeks", I'm going to stick to the 30-day window.  

I usually see my last flush of blooms VERY LATE in the season - like October/November.  So, I'll plan on feeding them through February. 

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