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Plant Profile: Candytuft (Iberis sempervirens)



This is a wonderful rock garden plant and also useful as edging in any garden.  The plant will spill down over rocks or walls and blanket the area with white flowers for several weeks.  The dark green fine foliage is attractive the entire growing season.  Candytuft does well as a cut flower, with a vase life of 5 to 6 days in cool temperatures.

Type:  Herbaceous perennial.

Bloom:  White; late spring .

Size:  10″H x 18″ W.

Light:  Sun.

Soil:  well drained; average fertility; pH 6.6 to 7.1.

Fertilizer: Feed monthly during the growing season with a high phosphorus fertilizer.

Hardiness:  USDA zones 3-8 ; AHS Zones 9-1.

Single Candytuft

Single Candytuft

Care:  Prune back the foliage by 1/3 immediately after flowering to keep a compact appearance and remove unattractive seed pods..  May need some protection in USDA Zone 4 or colder.

Pests and Diseases:  No serious pest problems. Crown rot may occur if the soil is too wet;  crown rot and club root may occur with age.

Propagation:  Propagated by rooted stem cuttings, crown division, or seeds.

Companion plants:  Spring bulbs.

Outstanding Selections:  ‘Purity” produces abundant flowers;  ‘Autumn Snow” blooms heavily in spring and repeats in autumn.

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