I was given a Stairway To Heaven climbing rose plant last Spring as bare root. Kept it in a large pot until planting in full sun area in early summer. I live in Zone 7. Plant was anemic looking, but bloomed heartily last summer. This year it is very bushy, not leggy/climbing like I would expect. It is VERY healthy looking so far this year. I have a trellis nearby ready to train the climbers. It just seems more like a bush. Have I done something wrong, or just not waited long enough?