Clemson Spineless Okra Abelmoschus esculentus. Clemson Spineless Okra is an heirloom that won the AAS prize in 1939. Okra is relatively easy to grow, it thrives in the heat and likes slightly acidic soils. Plants have showy cream coloured flowers, followed by strongly flavoured grooved pods that add brilliant texture to culinary dishes. Popular in stews, soups, and gumbo.