calcarea is a widespread native of Western
Europe including Great Britain and Ireland,
growing in short turf usually over limestone.
The form Lillet is a much superior garden plant,
being more compact than the type and very
free-flowering. This form was collected from the
wild near Lillet in N.E. Spain.
grow P. calcarea Lillet in a raised tufa bad
where it enjoys full sun and perfect drainage. I
find it is easily raised from cuttings if
semi-ripe shoots are taken in early June after
pot up rooted cuttings in a gritty compost
containing tufa dust and house them in a cold
frame for several months.
our AGS Group visit to the Czech Republic in
2004, we saw exceptionally well grown specimens
of this plant in all the very fine rock gardens