Agapanthus Indigo Frost™

Agapanthus ‘AMBIC001’, sold as Indigo Frost™, has upright stems carrying white flowers marked by deep blue at their bases. The patent describes it as semi-deciduous, while Southern Living lists it as deciduous; foliage retention can vary with climate. Its spring display can rebloom into summer, giving a compact, architectural accent for containers, borders, and massed plantings. ## Cultivar and garden use The [Southern Living Plants profile](https://southernlivingplants.com/the-collection/plant/indigo-frost-agapanthus/) identifies Indigo Frost™ as ‘AMBIC001’; the cultivar’s [U.S. patent, PP25519](https://patents.google.com/patent/USPP25519P2/en), describes its semi-deciduous foliage and bicolored umbels. The patent grant date is May 5, 2015. ## Siting and care Give it sun to part sun and well-drained soil. The [University of Florida IFAS Agapanthus guide](https://ask.ifas.ufl.edu/publication/FP018) notes that agapanthus flowers best with at least six to eight hours of direct sun, though partial shade can suit hot southern sites; moist, well-drained soil is preferred and overwatering can reduce flowering. The collection lists the cultivar at 24–30 inches tall and 16–18 inches wide, while the patent describes its own young plant measurements, so mature size varies with growing conditions. ## Maintenance Water regularly while establishing, then avoid keeping the root zone saturated. The breeder’s collection says routine pruning is unnecessary; remove spent flower stems if a tidier appearance is wanted.