I remember visiting Sissinghurst as a child when we lived in Hastings. That
was in its early days when it was just open a couple of times a year, and
you could sometimes just "drop in".
I remember half the grounds still being overgrown.

Regarding Chelsea flower show. It is still a great show, but I do believe
that it is now equalled if not out done by Hampton Court Palace flower show,
which has more room and also has plants for sale as well as so much more. A
great range of Water gardens,

http://www.bbc.co.uk/gardening/events/hampton_court/

--
David Hill
Abacus Nurseries
www.abacus-nurseries.co.uk