Thanks so much, Mike, for the link to that article! Fascinating observations!
Interesting how many dormant daylilies (“Katherine Woodbury,” “South Seas”, etc) bloomed much taller in the Netherlands (in a garden 18 feet below sea level) than their registered height in the US, but, so did the Sev “Desperado Love.” And here’s the offered explanation for this phenomenon :
“A clear example of just how important water is to this genus. As they are growing on a polder (The definition of “Polder”: A tract of low land—as in the Netherlands—reclaimed from a body of water, as the sea.), the water table is directly under them, and the plants do not need to look far for a drink.”
I really liked this quote, too: “Did you know that LITTLE GRAPETTE (Williamson 1970) can reach 120 cm (4ft)! Slap me silly, folks.” ” (“Little Grapette” is registered with a 12” height.) : )
JWWC, you're absolutely right about light intensity! I needed to plant a hedge at my country property in Latvia, and had hoped to find a particular evergreen at a local nursery. I’d remembered what a lush, lovely emerald green it was in Pennsylvania, and overall gave the visual impression of a ‘feathery’ texture to it. What a surprise when I saw the cultivar's black-green needles and a downright rubbery texture in Latvia! That’s just one example, but other westerners from the States had similar comments about other plants.