Clair Martin of Huntington Botanical Gardens uses the following technique ― called pegging ― to save garden space and maximize bloom on medium to tall growers. It's great for corralling mild-climate "long-limbs."

During the first few years after planting, allow canes to grow upright. In winter, strip off all foliage (wear leather gloves).

After stripping them, carefully bend the flexible canes out and down, forming a loop; it helps to have someone hold the stem as you tie it so it won't fly loose.

Tie the top growth either to a lower portion of the same cane or to another cane using raffia or green garden tape. The following spring, each cane produces dozens of blooms along its length (instead of a few blooms up near the top).