I am regularly hunting for recommendations for spectacular gardens to visit in each season. These lists are the ones I have found useful so far and any additions or suggestions would be most welcome. Surely there must be many more!
Summer - small gardens via the NGS
Autumn - Jane Perrone
Autumn - Roy Lancaster
Then of course there is
and for Top 50 gardening websites try this:
then she added one!
Last but not least is the very useful Garden Finder, which is worldwide.