Newbie advice...daffodils, iris, cana, and lillies (oh my!)

We moved into our house last Winter and decided to let a full growing season go by before tackling the gardens. The previous owner had quite an assortment of perennials (lillies, daffodils, irises, and patch of cana). As for what specific types of each, I have no idea. Most came up and bloomed but we still had many that never flowered. They all seem to be really packed in and I think they need to be spaced out. What are my options in terms of replanting and perhaps moving some of them? I know I'm running out of time before we get our first frost (I think we're in zone 7A - northern virginia). After that, I know there's really nothing I can do until Spring. How much longer do I have this season?
Any suggestions or general tips? I'd hate to lose what we already have in the ground and I think what's there can be used as a great start. Hopefully I won't do too much damage through the learning process.
Also, if there are any basic guidelines for rose bushes, I'd appreciate hearing them. We have a few scattered bushes that are pretty small, but flowered very nicely. There's also an out of control bush that is being crowded by the iris patch. Should I trellis it? I'm just generally not sure what to do in terms of rose pruning and maintenance
Thanks in advance for your help. (as you can see I need lots of it!)
-Dave B.
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In zone 7, you should be able to plant or transplant spring flowing bulbs now (if you can find them). I think it is too late to be moving iris, but they are very tough plants and you MAY have some success dividing now. It would be better to move them next year a few weeks after they have bloomed. I think a good target date is around Labor Day or a bit earlier. You can lift and divide the cannas now, put them in plastic lined boxes, and store them in a cool (45 - 60F) location, and plant next year. Don't seal them in a plastic bag as they need to breath. You could also just leave them in the ground and divide and replant them next spring. They can be divided and replanted around the last frost date for your area.
Roses are another story. I generally just prune them minimally in the fall to prevent breakage from wind damage over the winter. In the spring you can do a more drastic, careful pruning. I would recommend that you look at some books or website on how to prune roses. Also, you need to determine what type of rose you have. It wouldn't be a good idea to trellis a hybrid tea rose. Some climbers bloom on lateral growth from previous year, so indiscrimate pruning will eliminate flowers.
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