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Re: Saxifraga longifolia

Duncan McAlpine  wrote:
What is the propagation method for the subject plant? Is it easier by
>seed or division? A photo is on this page http://www.mobot.org/NARGS

S. longifolia, like two of its close relative in section Ligulatae (S.
mutata and S. florulenta), is monocarpic: i.e. the (single) rosette dies
after flowering.  As a result the method of propogation is by seed.  It is a
prolific seed setter and I have a tray with at least 1000 seedling in it
from a sinlge plant.  

Having said all that, many people claim to have S. longifolia plants which
send up new rosettes, which can be taken as cuttings.  Indeed, some claim to
have seen such plants in the wild.  So, either the received botanical wisdom
is incorrect or there is some other explanation, the most likely of which is
hybridisation has taken place.  This might not be too unlikely, especially
in cultivation as Saxifrages cross very easily: Indeed, they might be more
properly called Sexifrages.

The remainder of the species in section Ligulatae have individual rosettes
which are monocarpic.

Regards,
David Victor
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