Will the real Mrs. Langtry please stand up?
"However,", the Old House Garden continues, "the cup of the true ‘Mrs. Langtry’ opens a pale, creamy yellow and then matures to what the official RHS/ADS description calls “yellowish white, with canary yellow at rim.” The cup of the NOT ‘Mrs. Langtry’, on the other hand, starts out a richer yellow and never quite gets to “yellowish white.”
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