In a message dated 9/13/2006 9:43:09 P.M. Central Standard Time,
<<The cold will increase anthocyanin production over warm days.
to sun does decrease amount of anthocyanin, and thus fading
intensity of anthocyanin. A black flower can become a dark
after a couple of sunny days.>>
Chuck, does the soil variation (acid vs alkaline) also affect the
anthocyanin ONLY?? The striking differences I've noticed in the past seem
to be the shades of purple/lavender. My own REBOUND was so ugly in Memphis
in 2002 that I wished I had a shovel in my tote bag! The lovely reddish
tones I'd always loved were an old rose/lavender with a metallic sheen.
UGLY!! (In my eyes) RADIANT BLISS was a bit dull and lackluster
there also, but could be attributed to warmer temperatures. It was HOT and
steamy that week. Living in KY I'm accustomed to hot and steamy!!
PHOENIX, when in the bed that was an old garden, was a deep gorgeous
plum. Moved to the top of a hill, the other end of two acres, it was a
medium lavender and held NO appeal to me. It went from being in my top 5
to the bottom 5. (Because I normally don't like purple plicatas)
Looking back, I'm not positive this was soil conditions, since I have no memory
of spring temperature variations in those years. I've always thought it
was due to soil, but . . . I can admit to a possible misinterpretation.