Photo by Ron Myhr
Grown by Ron Myhr
A. 'Rigel' is a European hybrid involving A. speciosus and A. hildebrandii, both of which may be seen here in a single photo. I obtained 'Rigel' from a commercial nursery, and it is often available in these outlets in the Toronto area, along with A. 'Big Apple'. 'Rigel' is a relatively upright and sturdy plant, intermediate in habit between its parents.