Buddleja, Butterfly Bush, Orange-eye Butterfly Bush, Summer Lilac 'Royal Red'

This is one of the most deeply colored "reds", but it's recently been superseded by 'Attraction'. It's an older cultivar, introduced by G...Read Moreood and Reese Nursery of Ohio in 1928.

Average inflorescence size 37x8cm. Height and spread 170x180cm.

The Royal Horticultural Society as given this cultivar its coveted Award of Garden Merit. http://apps.rhs.org.uk/planttrials/TrialReports/Buddleja 201...

All B. davdii cultivars require weekly deadheading for them to look and bloom its best.

This species isn't long-lived (usually under 10 years). Hard pruning (to 6") annually in early spring helps it renew itself and improves bloom.

There are now dwarf cultivars that don't get much over 18" tall.

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 has grown well and bloomed beautifully in my Zone 6A for 5-6 years. Just started to bloom on 7/14 and now instead of solid panicles,...Read More the spray consists of smaller tufts of flowers along the panicle's stem which increase in size from the tip to the central branch. It looks like the yellow buddleia (Honeycomb I think). Anyone know what caused this change. Weather was very rainy for several weeks then hot and humid during flower formation. Related?

I have been growing buddleja davidii in Maryland for 20 years and have never had a volunteer seedling. Japanese barberry is very invasive...Read More in the woods here though, and porcelain berry vine is a nightmare.

This plant is beautiful but needs to be deadheaded and not allowed to go to seed. It is invasive in many states and crowds out native sp...Read Moreecies. Maryland is one of the states that has it listed as invasive and to be removed from the wild. Please check with your extension service to see if it is a problem in your state.