Hi Leela, I don't think you need to prune these. Generally, you want to prune while the rose is still dormant, and these are leafed out completely. Also, your roses are quite small, so pruning them might not help, since you are taking away their ability to photosynthesize for a while. Austins don't need as much pruning as hybrid teas do -- generally just removing dead wood, thinning, and shaping them a bit after they get established. These don't look established yet to me, so aside from removing any dead or diseased material from the bushes and planters (including dead or black-spotty rose leaves), if I were you, I'd leave them alone. You could train some of their canes horizontally around your little wire tripod while the canes are still young and green, but other than that... maybe just a little dose of fish emulsion fertilizer (or the like) and let them be. That would be my suggestion.

I'm wondering if you watered them enough during winter. What zone are you in? Also if you have them in the garage..you can put blankets on them to keep them warmer...but you have to water them during the winter. :) Not much at all. I could tell you more about winter watering if I know what type of soil you are using. :)

Carol

"Rule of thumb" is to prune when the forsythia (yellow-flowering, early spring blooming shrub) blooms. I typically have leaf break by the time that I prune (forsythia bloomed two weeks ago here), and I haven't pruned yet. For these plants, I would just cut out anything that is dead or damaged and leave them be for now. Take the saucers off the bottom, the plants don't want to sit in wet soil. Moist, but not wet.