Diamond Frost

Diamond Frost (Euphorbia hypericifolia)

Diamond Frost Euphorbia

Full sun to part shade; medium moisture, well-drained; tolerates heat and drought once established; pH 6.0-7.0.

12-18 inches tall and wide, mounding; blooms continuously from late spring through frost with tiny white bracts giving a misty, cloud-like appearance; does not set viable seed readily, propagated vegetatively.

Propagation: tip cuttings root easily under mist; treated as a frost-tender annual in Zone 6b, purchase transplants each spring.

Native region: Not native to Tennessee; ornamental introduction; the cultivar 'Inneuphdia' is a patented selection by Proven Winners.

In Middle Tennessee's humid summers, E. hypericifolia 'Diamond Frost' is notably more tolerant of heat and humidity than many white-flowered fillers, maintaining bloom from May through October without deadheading. The fine-textured foliage works as a filler in mixed containers and borders, pairing well with coarser-leaved tropicals. The milky latex sap causes skin and eye irritation, wear gloves when handling and avoid contact with cut stems. No significant pest or disease problems occur in normal landscape use. Unlike many euphorbias, this cultivar does not self-seed aggressively, making it low-maintenance relative to species-type euphorbias.