Anybody have any good tips on making knockout roses look knockout? LOL
Mine is starting to look bad.Its like they grow wrong, what I mean is they grow on a big stem instead of small ones and dont look full at all.How many times a year do they need cut back?I may be not be doing it right.
Beautiful blooms, Patty! I agree, trim them down to about 6-12 inches or so, they should grow in fuller for you. I cut mine way back each spring.
Nov 27, 2012, 09:26 PM
So cut them down to a foot from the ground in the springtime?Or do you mean a foot off the top?
Nov 27, 2012, 09:28 PM
Some stems on mine are an inch or more in diameter.Is that a sign from not cutting them back enough?
Nov 28, 2012, 09:52 AM
thick stems, extra thorns, a red coloration to the leaves and stems would signal Rose Rosette disease.... mine got it a couple months ago here in NC.... it's spreading all over...if that's the problem, I'm sorry.....here's pictures of roses with the problem...
Originally posted by Toots: thick stems, extra thorns, a red coloration to the leaves and stems would signal Rose Rosette disease.... mine got it a couple months ago here in NC.... it's spreading all over...if that's the problem, I'm sorry.....here's pictures of roses with the problem...
That explains it then.Everything you described is what mine looks like.Nothing I can do?
Nov 28, 2012, 02:52 PM
From the site Toots gave it seems to a virus that can attack your roses. When I first purchased my knockouts, the dealer said that they seldom are attacked by pests and so have built a reputation for their good looks. Let's hope its a 'southern' malady; I'd hate to lose these. (I've lost enough other types)
If the local nursery cant suggest something, I'd call on the local rose society, or the national rose society. They like to know about infestations so they can warn other growers.
Nov 28, 2012, 07:47 PM
SSTR (Stop & Smell the Roses)
UGA, you have described my two knockouts also. Patty, yours are so pretty. Looks like they're in full sun? That could be one of the problems with mine as they don't get full sun. So Patty, do you fertilize yours?
Nov 28, 2012, 08:50 PM
No, it isn't just a 'southern malady'. It's been found in Michigan, Wisconsin, Iowa, some Western states and Canadian provinces...if we have roses, we must be vigilant to eradicate any RRD infections. Such a shame for such a beautiful plant.This message has been edited. Last edited by: mgt,
~~~~~~~~~~~~ "I've decided to quit my job, drop out of society, and wear live animals as hats."
Nov 29, 2012, 04:21 PM
Thank you Shook!
SSTR thank you so much! No, I am a lazy gardener. I used to make the stinky tea for them, but it was too much trouble. Yes they are in full sun & irrigation.
That RRD specimen looks terrifying, like a plant from a horror film that fires its thorns at you and laces them with poison! I hope we get to see photos of healthy Knockouts from you soon!
"Bloom where you are planted."
Dec 02, 2012, 09:57 PM
UGA, mine have thick stems also but they don't have the virus. I would suggest that you take a sample inside a zip bag to your extension office for them to verify that you have it before you destroy your roses. I trim mine down to about 12" tall every spring. I also some times trim off 1-2' during the summer...it will make them bloom more again.
And the only fertilizer mine gets are some alfalfa pellets thrown on the ground around them in the spring & again in the fall.This message has been edited. Last edited by: ga.karen,
"The soil is the source of life, creativity, culture and real independence." David Ben-Gurion
Feb 08, 2013, 10:47 AM
I decided to pull mine up and thrash them..They was very ugly looking(nothing knockout about them lol).I guess this disease attacked them hard.Gonna divide some spirea and put them where the 3 knockouts where.I will never buy a knockout rose again.
Feb 08, 2013, 06:44 PM
I just took out my knockouts and gave them to my neighbor. They were beautiful each spring but then the crape myrtle leaves would come in and shade them, plus they would get too tall for the space so I'd hack them down and they always ended up looking terrible in the summer.
Last year I saw some knockouts with rose rosette disease at a shopping center. It was really interesting to see that first hand.
Feb 08, 2013, 07:54 PM
Going to replace our roses this year with knockout roses. Looks like need to watch out for that Rosette too! Thought they were disease free.