Edmund's roses online has them too!

I'm not familiar with your area, but you could try local plant nurseries that sell roses - they would be more likely to have them than Lowe's or Walmart. (But, they might also be more expensive than ordering online - depends on the nursery.) The nice thing about buying in person is that you can see how the grafts look - I've noticed that for tree roses sometimes the canes get broken off.

Can you hold your horses and wait for JP's the end of summer sale? They mark down a lot of bare root rose trees at the end of May, beginning of June. The problem is you won't be able to stop at 3 trees......6 trees......some of the trees they marked down to $11.95-$12.95 last year. Check out their rose trees now, see which ones you like. :-)

For what's it worth, I'm in Panama City and found it frustrating to grow rose trees. In the past 2 years, I had zero luck with rose trees from Lowe's. It was very frustrating to see 2 trees die within a week of purchase (kept in their bucket, well water). Gave up on that, bought a Julia Child rose tree from their main competitor while I was in Atlanta last year and it survived for a few months but struggled from the moment it was planted into the ground. After a couple of months, it was dead too.

So I visited a local nursery while I was in Birmingham AL last month. After a careful inspection, the number of grafts (or branches) were greater and larger size/diameter too than those from the big box home improvement stores, the height and diameter of the trunk was greater and so too was the size of the bucket it came in. The local nursery bought these directly from the grower as bare root and planted them into their own buckets. The quality is visibly different, much higher, than those I bought in the prior failed adventures from Lowe's and HD.

In short, I suggest you shop at your local nursery rather than buy online. The trick is to find a great quality nursery in your area that sells high quality rose trees. You'll know it when you see it.
The nursery where I bought mine was an old school mom and pop type nursery - clearly not a fancy place but the selection and quality of the various roses and rose trees was phenomenal. It was clear to me they bought higher grade rose plants and trees that are not likely available for direct purchase by a consumer like you and I from the grower. Should you buy online, I doubt you'll get 5+ well sized healthy canes on a rose tree trunk.

Every single one of those rose plants and the rose tree I bought from the mom and pop nursery have grown exceptionally well since their planting last month or two. I paid more than those found in the big box store but they have grown better than the others planted at the same time from the big box retailers. I've learned my lesson - find a mom and pop nursery and buy those better quality plants from them.

DVS, You have nematodes problem in FL, maybe that’s why your rose trees all went. I’d keep the trees in large pots.

summer...yes, there's plenty of nematodes here in FL. But those rose trees that died in a week were never planted in the ground. They died in the plastic garden pot they came in.

Oh, that might be the heat.......those plastic pots aren't big, it won't take long to dry them out......rose trees aren't cheap at Lowe's. I paid $40 each for double pink KO trees.

I have 75 potted rose trees at a weekend property in zone 5a, we get about 1-2 rain days in a week during the growing season, I only water them once on the weekends, the high temp can be around 90 F ( for a week or two), avg 75-80 F as high temp. most of the rose trees are in bigger nursery pots. For the ones in smaller pots I use turkey roasting pans as pot saucers to keep the trees from drying out. If you are going to have rose trees in pots again, give pot saucers a try. :-)