White Candytuft (Iberis sempervirens)
The plant does not suffer from a serious infectious disease, but rather a natural process of decline after intense flowering. As seed pods form, the plant diverts energy towards reproduction. Lack of pruning and the dense growth of the plant in pots cause the inner parts to dry out due to lack of light and excess ambient humidity, which could attract fungi if aeration pruning is not performed.
Trim spent flower clusters and tips with brown seeds.
Manually remove brown leaves and dry debris at the base to improve aeration.
Check pot drainage and reduce frequency if the substrate is waterlogged.
Apply a potassium-rich fertilizer to strengthen the plant after flowering.
Moderate, twice weekly; let substrate surface dry between waterings.
Full sun, minimum 6 hours of direct light daily.
Very hardy, tolerates frosts down to -15°C and summer heat.
Well-drained, preferably calcareous or neutral; avoid heavy clays.
Balanced liquid fertilizer every 20 days in spring and summer.
