(not) a rose expert - what do I do? - Ask Extension
I have 1 climbing rose, 1 tea rose, 1 single stem, and 2 knock out roses. They all receive between 4-6 hours of sun and are under an oak tree. Each ...
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(not) a rose expert - what do I do? #876218
Asked July 07, 2024, 5:22 PM EDT
I have 1 climbing rose, 1 tea rose, 1 single stem, and 2 knock out roses. They all receive between 4-6 hours of sun and are under an oak tree. Each year, I treat them with 3-1 systemic granules and fungicide (if needed). They start out beautiful in the Spring, then all of them become infected with diseases/bugs. When I water, I water at the base. The full garden photo is me facing south. The climbing, tea, and single roses get the most sun. I don't know what I'm doing wrong. At this time, none of them have flowers and all of the leaves have problems (on all of the roses). Out of all my perennials, the roses always do the worst. I set up my Japanese beetle trap last week, upwind, about 25ft from my flower garden.Should I just give up?
Oakland County Michigan
Expert Response
Hi,
Sounds like you have a few issues going on here.
Roses require full direct sun for the plant to bloom. Full sun is greater than 6 hours per day. If you had blooms in previous years, it maybe that the tree has grown creating more shade.
A systemic 3 in 1 product, when used, needs to be applied approx every 6 weeks (depending on the product used) during the growing season. We do not recommend the use of a systemic as it can harm helpful pollinators as they consume nectar from the roses. Alternatives may be, hand picking beetles off of the roses and drop in a bucket of soapy water, use insecticides for roses following manufacture direction on the label to reduce the chance of harming pollinators (never spray directly on the blooms) or spay aphids off of the roses with a steady stream of water from a hose.
Do not use Japanese beetle traps. These traps attract the beetles, inviting them into your yard.
Hope this information helps.
Thank you for using Ask Extension.
Pam
MSUE Master Gardner
Sounds like you have a few issues going on here.
Roses require full direct sun for the plant to bloom. Full sun is greater than 6 hours per day. If you had blooms in previous years, it maybe that the tree has grown creating more shade.
A systemic 3 in 1 product, when used, needs to be applied approx every 6 weeks (depending on the product used) during the growing season. We do not recommend the use of a systemic as it can harm helpful pollinators as they consume nectar from the roses. Alternatives may be, hand picking beetles off of the roses and drop in a bucket of soapy water, use insecticides for roses following manufacture direction on the label to reduce the chance of harming pollinators (never spray directly on the blooms) or spay aphids off of the roses with a steady stream of water from a hose.
Do not use Japanese beetle traps. These traps attract the beetles, inviting them into your yard.
Hope this information helps.
Thank you for using Ask Extension.
Pam
MSUE Master Gardner
