RE: Late Autumn Perennials


Hello Joanie,

According to the RHS Encyclopedia, Crocosmia masoniorum is borderline hardy
to 5F.   I understand that Zone 5a is -20 to -15F so it would seem unlikely
that it would survive.   It is approximately 18" tall (although the book
says it grows to 4').   The flowers are a lovely orange.   There were only
buds on the plant when I bought it about 8 weeks ago, so perhaps they had
held it back in the nursery and that is why it is flowering now; the RHS
Encyclopedia says that it flowers in mid-summer.   (Of course, the plant
could have had the wrong label on it!)    Apart from C. x crocosmiiflora
(which is very invasive) C. masoniorum is the hardiest listed.

Valerie, Sth Yorks, England

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