If the bud-union dries out, the chance of own-root is slim. If the canes come from the main-root-ball .. that main-root ball is Dr. Huey-rootstock (west & Midwest), or Multiflora-rootstock (northeast & Canada).

I dug up old Knock-out which it grew its own-root ON-TOP of Dr. Huey-rootstock .. that's when I planted it deeper than 4 inch. below ground. But the own-root is very short & tiny, compared to the massive Dr.Huey which expand 4 feet across.

The only way that a rose can grow its own-root is if it's buried more than 4" below ground, with tons of rain .. even then the own-root is very small, 3 inch. max .. that's after a decade in the ground.

Thank you Straw guess the little canes on own root are Dr. Huey then will keep them in the new pot just as a experiment ,btw love all your info on the forum very helpful.

I'm new to growing roses just started this year but already crazy about them each one is unique have 20 roses planted in 3 flower beds but i love/want so many more just need to learn more about them by trial and error but also by the info in the forums of other ppl experience.

One last thing been looking for for this rose (Dark Knight ) everywhere for like 4 months now any idea where i can find one or should i wait till next spring and preorder it.

Hi Adrian: I looked up Dark Knight and it's an older hybrid tea. The new dark-red hybrid teas like "Dark Desire" is even better, more petals & more heat-resistance & fabulous scent & disease-resistance. I had Mirandy, dark red, amazing scent (Khalid likes his Mirandy) ... but I killed Mirandy since it becomes less petals during hot weather, and stingy as own-root.

Oklahoma is widely available at local stores for $10, dark red, and very fragrant. That one has a vigorous root system, even as own-root. A friend gave me a cutting of Oklahoma to sniff its fabulous scent, I stuck in a cup of rain-water, and left it in the shade for one-week, it grew roots in that cup !! I gave that away.

Dave and Deb Boyd, zone 5a, have a Oklahoma as grafted, the dog broke its branch, so they stuck that into the ground, and got an own-root Oklahoma next spring, see their profile below:

http://www.helpmefind.com/gardening/l.php?l=21.127261

My wife told me i'm crazy going on each leaf and checking under for the Sawfly .

Dark knight is bicolor but very pretty dark red with yellow wanted to match it with the Oklahoma i have on the other side of the bed this pic was taken a month ago now is about to bloom again.

Gorgeous Oklahoma, really like your shade of color. I had 2 rose-slugs with Mirandy .. the molasses fertilizer I used attracted sawfly. My husband really likes dark-red Mirandy ... but my kid didn't like its thorns, so I killed it.

Dark Knight is very unique with dark-red and yellow. Red roses have a higher need for iron. Molasses have iron, but that really attract rose-slugs .. so I switch over to red-lava-rock (high in iron and potassium) .. so far no rose-slugs this year once I make my roses' leaves tougher with minerals. I stopped putting banana peels around roses .. that attracted rose-slugs too.

My Mirandy was next to a tree .. tree roots stole calcium & minerals from it so it was more susceptible to rose-slug. I did find one rose slug on Evelyn early spring when we had tons of rain, which leached out minerals. I notice that roses next to trees really benefit from instant minerals like lime.

Early spring I gave Evelyn lime & pea gravel to make her leaves thicker ...that solved the problem, aphids gone too. Here's Evelyn today, taken at 90 F June 27, healthy & zero pests, there's a few pea-gravel under the grass clippings. I put 1/2 cup of pea-gravel for roses that like it alkaline to neutralize acidic rain we got during spring.