Xref: kermit uk.rec.gardening:159682


In article 1fzpavb.6hz3aa1mxc4s9N%00senetnospamtodayta@macun limited.net, (Jim W) writes:
| Nick Maclaren wrote:
|
| So should be pretty hardy?
|
| No. Constance Elliott is, but is less hardy than the blue form.
| Amethyst isn't, and is a less hardy hybrid. Purple Rain, I don't
| know about.
|
| Amythyst is less hardy? Its listed as down to -8C.. That is one of
| the ones I managed to find information on..

See the climate FAQ :-)

Yes, Amethyst is less hardy than the common P. caerulea. The
key to UK hardiness is NOT their ability to take cold, but
their ability to take winter wet, especially when COMBINED with
intermittent frost. That is why P. caerulea is a LONG way the
hardiest in the UK, but nowhere near the hardiest in the USA.

This is based on second hand information, but I am 95% certain
that it is reliable.


Regards,
Nick Maclaren.