Monrovia Flower Carpet Yellow Groundcover Rose - Knowledgebase Question

Bloomingdale, IL
Question by dianevlcek
November 14, 2005
We purchased 5 of the Subject plants this past Spring from a local nursery and have had 2 problems for which we need your help:

1. They are anything BUT a groundcover -- they became VERY tall and leggy -- not bushy -- only grew upwards to about 3 feet tall. How do we make them grow as they were billed to have grown?

2. These bushes were plagued all season long by Japanese Beetles. It didn't matter how many times we sprayed with the nursery-recommended Ortho Systemic Insect Killer (formerly Isotox)...how can we prevent these from showing up/treating them effectively if they show up?

Thank you for your help!


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Answer from NGA
November 14, 2005

0

The normal size range for this rose is three feet tall and wide, so it sounds like your plants were growing in that pattern. Pruning them back fairly short in late winter or very early next spring should help them stay dense and bushy for the next growing season.

As far as Japanese beetles go, there really is not a lot we can do as gardeners. They are a terrible pest and roses are one of their favorite foods, unfortunately. Some gardeners report success using a spray containing neem as a repellent. Handpicking early and late in the day when they are sluggish can also help somewhat. Do not however use the pheromone traps as these tend to lure more into the area than they catch.

Enjoy your roses next summer!

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