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Knockout Rose Bushes
Posted on 7/1/20 at 11:51 am
Posted on 7/1/20 at 11:51 am
I have several knockout rose bushes around my house. They are all older than 5 yrs old. I don't normally cut them down to the stubs. Actually I never have. I just snip the dead parts at the top. I've notice over the last year, that the trunks of the bushes look old and dying, the inside of the bush is vining, and the bushes overall just look unhealthy. But during there blooming times in the spring, the tops look great. I recently just cut them all down to the stump. Anyone have any advice on keeping them healthy looking? I have an automatic sprinkler thing I installed a year ago, is it maybe getting too much water? I orgininally had my sprinklers on daily for 15 minutes. Enough to wet the ground and plants. Is that too much?
4
Posted on 7/1/20 at 12:13 pm to Kracka
I cut mine back severely every other year. They come back fuller and create more blooms. Full sun, very little water on mine.
Posted on 7/1/20 at 6:32 pm to Kracka
To properly trim them back you first take out any interior growing stems to open it up for better air circulation.
Then take out the growth that starts on the outside and grows toward the middle. Also any dead branches.
I cut mine back pretty severely twice a year, once around February and again around August. They look like shite for a few weeks until new growth appears, but then they take off and the blooms are plentiful off the new growth.
I also use Miracle Grow blue crystals and put that in a watering can to water around the base of the bush 5-6 times a year.
Then take out the growth that starts on the outside and grows toward the middle. Also any dead branches.
I cut mine back pretty severely twice a year, once around February and again around August. They look like shite for a few weeks until new growth appears, but then they take off and the blooms are plentiful off the new growth.
I also use Miracle Grow blue crystals and put that in a watering can to water around the base of the bush 5-6 times a year.
Posted on 7/1/20 at 8:23 pm to Kracka
Yes, you are over watering. Refer to Crawdude's 1" once per week suggestion. Set a cup out in your landscape area and time how long it takes to fill with 1" of sprinkler water. Then you know how long to set your timer for. If you get rain one week, adjust accordingly.
Also, Rose rosette disease is killing Knock Out's here in Dallas and other parts of the country. I recommend people not plant them here anymore but they still do.
Also, Rose rosette disease is killing Knock Out's here in Dallas and other parts of the country. I recommend people not plant them here anymore but they still do.
Posted on 7/1/20 at 8:55 pm to Kracka
Mine are 5 years old and probably 6-8 foot wide. I definitely missed a pruning or 2 and they are growing strong.
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