Kew is not an RHS partner garden so no discount. You could always ask in case.
Just one point to add, if you leave them in the ground, next spring you need to keep a very good watch for slugs and snails as they will rapidly eat the new shoots.
Zinnia , I think
The little collar beneath the top indicates that it could but I do have honey fungus and the toadstools are a darker colour.
I'm gobsmacked. Hello Forkers on PAGE 3. WHERE ARE you?
It's a Liverwort but I'm not sure which one
I do not know what it is but I do know that it is not Honey Fungus.
I have one that has spread to 10 metres wide. Very hard to dig out to contain it.
I grow Saffron and after 3 years have become self sufficient but I don't use much. It doesn't take up match space is not difficult to grow, the bulbs need to be dug up every 2/3 years to resolve.
Could it be a Zinnia?