Planted 12 knock out roses. 2 side-by-side the fleshy part of the leaf is being eaten leaving the vein structure intact. Name or solution? Thank you
This looks like rose slug damage. Insecticides are available or you can try hand removal of the small green caterpillar-looking slugs. They usually feed on the underside of the leaf. Here is more info: https://www.gardeningknowhow.com/ornamental/flowers/roses/rose-slugs.htm
What is causing my roses to turn brown and not open up?
It sound like you may have an insect problem. Rose curculios are easy to spot so we can rule them out. Thrips and rose midges are very small and hard to find. Thrips suck the juice from buds and rose midge eggs are laid inside a developing bud. Both cause the bud to fail, turn brown and fall. Here are articles on rose midges followed by thrips: https://www.gardeningknowhow.com/ornamental/flowers/roses/rose-midges.htm. https://www.gardeningknowhow.com/ornamental/flowers/roses/rose-thrips.htm
The internet is full of potential control measures. Using systemic insecticide will harm good and bad bugs, including bees, so it is reserved for severe infestations.
My knock out roses have quit blooming and the blooms that are on the bush are brown and dead. What do I need to do to get them blooming again?
They may be taking a rest break from the first big bloom cycle. Give them some kelp meal, 1/2 cup per bush worked into the soils and some organic rose food and water it all in.
is it normal for the blooms to turn a pinkish color shortly after blooming a beautiful deep red?
That can be a sign of stress. But in high heat, they will do that as well. Keep them well watered and give them some kelp meal to help keep their soils home nice for them. 1/2 cup per bush.
The winter here was warmer than general with less overall snow but still ~40 in. A very warm Feb, with some melting. As of June 1st they are showing little sign of life, (leaves and greening canes). With some more severe pruning and feeding is there some hope they will come back yet? Only 1 plant of 10 has actual leaves.
Maybe. Water them with some water that has both a product called Super Thrive and a Root Stimulator in the same water. Do this the next 5 to 6 times they need watering. Also sprinkle 1/3 cup of Epsom Salts around the base of the rosebushes, work lightly into the soils and water in. It is okay to use the same water mix above to water it in.
our rose's were beautiful thick red and on 6/2/17 we were out in the yard and noticed that they looked like they were dying. the blooms were falling off they turned a pale red, needles to say we were quite upset. we sprayed them with a seven mixture as we always do about 6 days ago. i noticed that there were tiny looked like flies with a green body on them , also our yard was sprayed on may 29 or so do u think they got the spray on them we have it done every year and haven't noticed anything. please help us we sure dont want to loose them. thank you
It sounds like they got some spray drift on them. Keep them well watered and give them some water that has a product called Super Thrive mixed into the water the next 5 to 6 times they need watering. The super thrive is not a fertilizer but rather a vitamin like tonic for them, goes a long way in helping them deal with all kinds of stress and shock. Let the company know they need to be careful of spray drift too!!
after knock out roses blume, they start to dry out. How do I trim off the old blooms ?
KnockOut roses are not fussy about dead-heading. Standard rose rules are to move down the cane and cut just above a leaf with 5 leaflets. This isn't necessary with KnockOuts. Unfortunately, unless there is a new variety out, these shrubs do not produce nice rose hips. They simply turn brown and will fall off the plant eventually.