Specific Families and Genera > Gesneriaceae

Petrocosmea - information needed, please.

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ChrisB:
Really useful info here.  Must check my labels!

MarcR:
Maggi,

This is the best info I could find:

Petrocosmea grandiflora

Petrocosmea grandiflora has been in cultivation since the late 1990's and was first introduced as P. duclouxii. It has a limited distribution in the wild, growing in cracks in rocky limestone cliffs in south-eastern Yunnan at around 2000m. Belying its tender appearance and provided that it is kept dry, it has regularly survived sub-zero temperatures under cold glass. Cultivation tips can be gained from the information supplied about its natural habitat - cracks in limestone cliffs - so a free draining compost that never becomes too wet is the order of the day. A 50/50 mix of loam,leaf mould versus gritty sand, perlite, fine bark based compost is a good starting mix.

From the Alpine Garden Society archives.

Maggi Young:
Thanks, Marc, I think Julian has this information. Interesting to see it here.

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