Worth visiting simply to see the amazing Vegetable Lamb of Tartary (above), The Museum Of Garden History is housed inside a lovely old parish church attached to Lambeth Palace (where the Archbishop of Canterbury lives).
Essentially, this is one large room but enough to keep you interested for an hour or so. Lots of ancient gardening implements and curios in glass cases.
There's a shop selling all kinds of garden-related stuff as well as a small but perfectly formed gothic garden. The cafe food is really good too.
Lambeth Palace Road, London SE1 7LB
(Opposite the Houses Of Parliament on the south bank of the Thames)
£5 Senior Citizens
£3 Art Fund Members
Nearest tubes : Vauxhall, Lambeth North, Westminster or Waterloo
More information here :