Last year I planted a few potted perennials for the first time. I've
never cared for perennials before. What do I need to do with them now?
When should I start watering them? I live in zone 5 (Iowa City). it's 70F
here right now but it will freeze again this week. Also, I haven't trimmed
them at all. My sage is still a blue grey color, but the rest re brown.
Should I cut back last years growth or leave it?

Thanks,
Adam