The Cityline Series Paris should be compact enough. There are others in the series but the jury is still out on whether they will really stay small or turn out to be slow-growing large plants. Paris is one of the original ones and it appears to stay small after 3 years. You can also purchase Pia, also known as Pink Elf.
Hyrangea or okay to plant pretty much anytime. I have planted fall and spring but I am off to buy forever and ever blue heaven today while DH is not home. They do like afternoon shade so keep that in mind.
The only one I have in full sun is my ES and I have to give it about a gallon of water (or more) a day to keep it from wilting. I would move it but I love it where it is so it is worth the extra effort.
I protect all my mopheads even those in my zone. I have an applenglow (sp) that is zone 6 and not much luck so far. I am chicken and sticking to my zone. The only luck I have had outside my zone is mini roses but with major winter protection.
Many of the Cityline varieties are advertised to be good in Zone 5. However, I have not heard from anyone in that zone regarding the claim to be hardy so I attest to that. You could check with local nurseries that carry them.
Forever & Ever 'Double Pink' is very small. 24 to 30 inches tall and 36" wide. It is remontant ( blooms on new wood) making it a good choice for small gardens in the north. Mine blooms reliably in zone 5 without any winter protection. They are a slow grower and appreciate a handful of super phosphate in early spring to encourage bloom. They may be hard to find. I've never seen them in any local garden center. I internet ordered.
I went out today to check a couple of nearby nurseries, but the ones i found were pretty big, did not find the cityline type at all. So i went online and found them. I will be ordering it soon once i compare prices. :-}
snapple that one is a beauty, does it change colors with acid adjustment like some others?
Yes, you can change the flower color of 'Double PInk' to blue. It's actually small enough to be used as an edger to the larger hydrangeas.
The most important feature, in my zone, is it's ability to bloom on new wood.
Ok everybody, I went out today to look around for some plants. But to my surprise i found a forever and ever one. And thanks to your advise i think i made a good choice. I truly did not think i would find it at a big store like Lowes, but it was and i just had to have it. It was priced good too at 14.95. This is it, tell me what you think. Just finished planting it too!