Is it legal to grow or import Tonka beans?
Not sure about growing, but it seems that importation is still illegal in the US...despite being used by lots of chefs.
To Plant a Garden is to Believe in Tomorrow
You need to check with your own agricultural department
. What's legal and what's possible for mainly UK based gardeners will be very different.
Vendée - 20kms from Atlantic coast.
"We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw