Rhododendron 'Beethoven' - magenta flowers - Blooms mid-May I've been stressing over the "rather delicate" bright magenta pink flowers, since all of a sudden there were two azaleas in the marker area with small leaves, one with much smaller leaves and flowers, and the other, by contrast, anything but delicate. But I'm pretty sure this one with the larger flowers is it, which Rhododendron 'Beethoven' (Vuykiana) (EA) | rhododendron 'Beethoven'/RHS Gardening says has "small, mid-green leaves, and in mid or late spring, relatively large, vivid purplish-rose flowers with a deeper blotch", my italics. That site uses the term Vuykiana in the heading, which is also the series that 'Palestrina' (another of the 50 of interest) is in. Dave at the Parks Board had told me that it's part of the composer series. Now I get it - Palestrina, Beethoven. And Joseph Haydn, which I said earlier was not the same as 'Haydn', but maybe it is. Japanese azalea: plant, care for and tips - My Garden Guide says typical characteristics of this group are flowers of 5 to 7 cm and stocky growth. Azalea says Vuyk (Vuykiana) azaleas bear larger flowers in May. Height to 3ft (1m), spread to 5ft (1.5m). Here is an article that goes into some detail on the Vuykiana azaleas: QBARS - v33n1 The Vuykiana Azaleas (vt.edu).