Austin is only 140 miles from my corner of Katy ... not so very far ... but when it comes to growing bearded iris, those 140 miles mean a lot. Oh, they grow just fine as far as foliage goes but it's blooms like these that I covet in vain.
I've always thought that it was our intense summer heat that prevented the plants from blooming but that theory went out the window yesterday when I saw how profusely the iris were blooming all over Austin, which set a new record for days over 100 degrees last year. So now I'm thinking that perhaps that limestone soil is a key component.
I've heard tell that some Houston area gardeners have been successful in growing these iris ... if you're one of them, I'd love to hear from you and know what you think the secrets of your success might be.