Buddleja davidii (Orange Eye, Butterfly Bush)

Can be highly invasive and is a problem plant in areas of the West where it has populated stream areas to the detriment of native flora and fauna. Prolific seed dispersal.
I did have three in different colors, but because of the number of seedlings cropping up have limited my yard to one plant. Some varieties are highly fragrant.

I like this opinion
1 person likes this opinion

Is now a Class B noxious weed in WA and OR State. The largest problem in WA is found on the west side of the state (west of the Cascade Mnts.) One study found that in one single flower head an estimated 40,000 seeds can be produced. Also noted that cut stems on the ground are capable of producing basal roots and rooting them selves to start new plants.
Source: Washington State Noxious Weed Control Board

I like this opinion
1 person likes this opinion

Interesting... It is not classified as an invasive in Nebraska. A nice plant for a cottage or butterfly garden. Very nice fragrance. Cut back to 6-8 inches in the spring.

I like this opinion

the single bush i have was a volunteer that popped up after a '03 hurricane i transplanted it to the back yard and have been enjoying it ever since

I like this opinion

Definitely will spread around and a fast grower. Can be cut back severely to keep in check. Butterfly magnet.

I like this opinion

We have several of these around the house, one which is probably 11 foot tall. They are very fast growing and I can see why it is considered invasive in some states. You can expect to see many butterflies of all types, along with bees, and a personal favorite here the Hummingbird Moth. They are very easy to grow and grow well from cuttings if you want more. I recommend starting with one, then if you want more of the same color, simply cut some branches off and pot them until ready to transplant. There are 2 types of purples, a lavender looking purple and a dark purple. Also the seeds that fall to the ground can and will start new plants, so keep an eye out.

I like this opinion