I have seen many Dierama types in Ireland and would like to grow them where I live in Houston, Texas, which is in Zones 9 and 9a. Will Dierama varieties grow here and, if so, which ones? I understand that they require direct sun and well draining soil, but would there be anything that would prevent them from thriving here in this tropical area's hot, humid summers? Please advise. Thanks. Michael D. McAuley michael.d.mcauley@comcast.net Cell: (281) 250-2536