Ok i have a petite pink drift knockout.. which after replanting to a pot developed a similar sounding problem…first off i realized pot was not draining well so took it out of the pot washed off roots and repotted with new soil. trimmed the branches that had curling leaves back, used Bayer 3 in one fertilizer, antifungal, insecticide granules and worked into soil around base and watered from under foliage. repeated again this season and noticed same with curling leaves and shimmery white coating as well. i cut it back leaving only healthy clear stems and leaves..removed all debris off soil and bagged and tossed. reapplied Bayer and its looking much better. I’ll give it one more season before I rip it out! 😂👍

That's definitely a bag worm. Usually I find them on my Aroborvitaes and Junipers, but a few can end up on other plants as well. They can really do some damage if left unattended and are particularly hard to treat on tall evergreens. Every one of the bags left behind can contain as many as 200 eggs which will be ready to infest your plants again next year. They usually begin to feed and form bags around the first of June in my area of NE OK., so be on the lookout next year about this time. If you can catch them when they first appear BT works as well as anything and won't harm beneficials. You will need to spray more then once to catch new hatchlings. Make sure the BT is fresh. We weren't having much luck with BT and discovered there's a world of difference between fresh and old. Use a spreader sticker. Some people not familiar with our area may not understand just how hot AND humid it is now. So be careful when you spray. You need to spray ideally when the temperature is 85 or below and make sure that in this drought your plants are fully hydrated before you do spray. I've burned plants spraying when it was too hot. Best time of course is in the cool of the morning...Last year we had a major infestation on our Arborvitae and sprayed 3 times with frest BT. This year (fingers crossed) I haven't seen any hatchlings - yet. ........Maryl

Right, don't fertilize until they have recovered and have put out plenty of leaves. Bloom Buster is the wrong kind of fertilizer--regular Miracle Gro or Miracle Gro for Roses is fine, or any reasonably balanced fertilizer such as 10-10-10 or 18-6-12. Watering correctly is the most important thing. Keep a 2" mulch of leaves or bark around the roses. When the soil under the mulch feels dry-ish, water thoroughly with 2-3 gallons for small plants or 5 gallons for larger, plus or minus for extremely hot or very mild, cloudy weather. Usually once a week is fine. For new plants, I divide the ration in half and water twice a week.

My Knock Outs keep their leaves but only because they won't fall off. They're dead and dried out but hang on all winter. I think you mean "Do they keep live green leaves all winter?"