Hi J

If this is Buddleja salviifolia then I can help. It grows wild around where I live. I have a planted one growing in my garden. It is frost and drought resistent once established. Mine survived a black frost with a low of 23 deg F (-5 deg C) last winter. I would protect it for the first two years though. It is very fast growing and does require some space to spread. It is mostly shrubby but you can prune it into a tree shape. It is definitely "water wise" plant. It will require water in summer if you are in a winter rainfall area. It is semi-evergreen and will drop some leaves in fall. Do not plant too close to structures because its roots are reportedly aggressive. Plant it out in spring after all danger of frost has passed. It will grow in any soil but add plenty of compost when planting and it will reward you with masses of divinely scented small light pink flowers in early spring. It flowers when quite young. It is easily propagated from hardwood cuttings or seed in the growing season.

Thank you cjhin for the information. I bought this particular butterfly bush for the fragrance. So I'm happy to hear you say that it is "devinely scented". One thing puzzles me though -- the plant I purchased is described to have blue flowers. Are there different cultivars?

Thanx,

j.