Can I prune my overwintered plants that have gotten leggy?

Question

I keep impatiens, coleus, and hibiscus in bright windows, and they bloom all winter. Trouble is, they’ve grown very leggy and by now look pretty scraggly. Is it possible to prune them? Some impatiens are with crown of thorns; most are with geraniums. The coleus are solo or with other plants like Dusty Miller. And what about the now very tall hibiscus? I’ve pruned two branches, but I am afraid to cut off all the blooms. Also, what fertilizer when you do plant surgery? HELP and thank you very much!

Answer 1

Oh, and use a balanced fertilizer, like 10-10-10.

Answer 2

Yes, you can prune them back by up to 1/3 without harming them.