FIRST FLUSH™ Grace Iberis sempervirens

FIRST FLUSH™ Grace is Danziger's named selection of Iberis sempervirens, promoted for first-year flowering without bulking or vernalization. Danziger lists a mounded habit, early flowering, 6–8-inch height, 12–14-inch width, and zones 4–9. [Danziger selection profile](https://www.danzigeronline.com/catalog/perennials_catalog/first-flush-grace/) ## Selection and uses The named profile lists small, single flowers and suitability for pots, hanging baskets, ground cover, and landscape use. It also describes abundant flowers, heat tolerance, and cold tolerance for early-season programs. The First Flush series guide says that 14 days at 50°F (10°C) or colder supports uniform flowering. [Danziger selection profile](https://www.danzigeronline.com/catalog/perennials_catalog/first-flush-grace/) · [First Flush series guide](https://www.danzigeronline.com/wp-content/uploads/2025/01/Iberis-First-Flush-2026.pdf) ## Growing conditions For Iberis sempervirens generally, NC State Extension describes a preference for full sun with tolerance for light shade, and moist to slightly dry, well-drained soil. It notes a preference for neutral to alkaline soils. These are species-level care notes rather than claims about a separate cultivar trait. [NC State Extension](https://plants.ces.ncsu.edu/plants/iberis-sempervirens/) Kew lists Iberis sempervirens in the family Brassicaceae. [Kew Plants of the World Online](https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:324670-2) ## Maintenance NC State Extension recommends cutting candytuft back by one-third after flowering to encourage new growth, and mulching in cold climates to reduce winter damage. The selection profile's dimensions and mounded habit are the named-selection measurements; the broader soil and pruning notes above describe the species. [NC State Extension](https://plants.ces.ncsu.edu/plants/iberis-sempervirens/)