Culture
Best grown in evenly moist, gravely to sandy, neutral to alkaline, well-drained soils in full sun. Tolerant of some drought once established. Less floriferous if grown in part shade. Sharp soil drainage is the key to growing this plant well. Cut or sheer plants stems back by 1/3 after flowering to encourage new growth and to maintain compact habit.
Noteworthy Characteristics
Iberis is a genus of about 40 species of annuals, perennials and evergreen subshrubs from Crimea, Southern Europe, North Africa, Cyprus, Syria, North Iraq, Turkey and the Caucasus.
Genus name comes from the Greek word iberis indicating a plant from Iberia.
SNOWBALL is a hybrid candytuft selection that features large clusters of white blooms in spring and a compact, uniform growth habit. Mature plants will reach around 0.5-0.75' tall with a 1-1.75' spread.
Problems
Wet, poorly-drained soils inevitably lead to crown rot which can devastate plantings. Susceptible to club root which results in stunted growth.
Uses
Excellent for borders, paths or walkways. Rock gardens or sprawl over a wall. Interesting ground cover for small, sunny areas. Containers.