This species isn't long-lived (usually under 10 years). Hard pruning (to 6") annually in early spring helps it renew itself and improves ...Read Morebloom.
All B. davdii cultivars require weekly deadheading for them to look and bloom its best.
Butterfly bushes may be good nectar sources for adult butterflies, but they are not food sources for the caterpillars of any Lepidoptera native to the continental US.
In some places, B. davidii can be an invasive weed: England, France, New Zealand, and the states of Oregon and Washington. It has naturalized in eastern N. America but is not considered invasive there. Recent cultivars are usually selected for dramatically reduced fertility.This species has naturalized along the west coast of N. America from BC to Califolia, and also in 17 eastern states.
This plant has performed well over the past three years I've had it... maybe a little "too" well. ;-) It was advertised as having a smal...Read Morel stature... maybe around 3 to 4 feet? In my Pacific Northwest garden, it's easily 6 to 7 (maybe more) feet in height. It gets shade in the morning, so maybe in full sun it would be slightly shorter.
This species isn't long-lived (usually under 10 years). Hard pruning (to 6") annually in early spring helps it renew itself and improves ...Read More
This plant has performed well over the past three years I've had it... maybe a little "too" well. ;-) It was advertised as having a smal...Read More