Types of irises compatible to Oklahoma

Oklahoma heat, sudden spring freezes, and heavy soil eliminate some catalog favorites. Members who garden without constant fuss tend to lean on these groups:

• Modern Tall Bearded with good branching: Cultivars proven in Region 22 gardens usually open several buds even after a windy week.
• Standard Dwarf and Intermediate Bearded: Bloom earlier, sit lower out of storm gusts, and make cheerful edging along the Will Rogers walk.
• Louisiana irises in wetter spots: Happy where clay stays moist; less ideal on bone-dry berms.
• Reblooming bearded (selected): A few reliable rebloomers give a fall encore after rhizome-sale weather cools—ask at meetings which clones actually perform here.

When you shop the September rhizome sale, volunteers can point you toward varieties that have already thrived in local beds. Pair new plants with the cultural notes on How to grow irises.