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.
I bought this at a local Home Depot last summer along with a Black Knight. The colors were so beautiful - a soft lavender with orangey-ye...Read Morellow eyes. It flourished in the spot I planted it, and I was so pleased to see the butterflies on it! Then this spring, it never came back! I am zone 6, and it was supposed to be hardy in my area. Black Knight came back with vigor. So unfortunately, I had to pull the stump out, and plant something else. Disappointing.
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
I bought this at a local Home Depot last summer along with a Black Knight. The colors were so beautiful - a soft lavender with orangey-ye...Read More