KC Gardens

Something's wrong with my knockout roses


I’ve had some knockouts for about 7 years and they’ve been problem free. This year they bloomed great but in the last three weeks the leaves have brown spots and look withered or wilted. I’m pretty sure I haven’t over-watered them or under-watered them. Do I need have a bug problem? Thanks - Brad -


  1. 9 months, 2 weeks ago

    Brad, we really need more information. Have you seen any insects on the buds or leaves? A picture would be very helpful to see the actual damage, as the problem could be any number of things: disease, insects or environmental. It would be good to know also how you have cared for them in more detail. With more info, we’ll be happy to help you.

    Carole Johnson County Extension Master Gardener

  2. 9 months, 2 weeks ago

    Sorry, but I forgot to mention that you could bring in a fresh sample of the damage on your Knockouts to your local Extension Office. Carole JOCO Extension Master Gardener

  3. Kansas City

    9 months, 2 weeks ago

    From Brad — No insects seen. The roses bloomed on Memorial day like normal. We dead headed them couple weeks ago and since then they have looked brown and no new growth. We had a couple of good rains and we watered then some. Roses in front of the house are doing fine with less attention.

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