There is an open call for submissions on Texas gardening to the German website Datscharadio, hosted by Gabi Schaffner, an audio artist and part-time resident of Far West Texas in Lobo, the settlement along Highway 90 between Valentine and Van Horn.
The Datscharadio group will be posting interviews on Texas gardening from Marfa Public Radio, including a visit with Texas nurseryman Chris Wiesinger, known as "The Bulb Hunter".
There are also many podcasts of Nature Notes - the KRTS original program - on the flora and fauna of West Texas, including this episode on the Creosote Bush.