We’ve struggled for years to grow some of the exceptional forms of Hart’s Tongue fern, Asplenium scolopendrium in our hot, humid climate. One cultivar that we’d long been enamored with is Asplenium ‘Keratoides’. After killing nearly everything we had, we stuck one in the crevice garden, where, to our amazement, it has performed marvelously. It seems that this species needs to grow near rocks to thrive, and the alkaline nature of our crevice garden is obviously to its liking.
I love this! I have learned wonderful lessons from your crevice garden. Thank you!