Why Is My Alyssum Dying?

Poor drainage – Maritime plants like alyssum are adapted to very sharply drained soils. ... Poor Irrigation before establishment – Newly planted annuals need even moisture and good care while they are becoming established. If they are not properly watered from the start, they can dry out and die quickly.

How do you revive alyssum?

This plant prefers moist, well-draining soil. Keep it well watered, especially during the hottest parts of the summer. If they are left to become too dry for too long, they will die early. To potentially revive alyssum when this happens, cut the plant back by one third, and return to a diligent watering regimen.

What is wrong with my alyssum?

While alyssum is relatively maintenance-free, it will do poorly on boggy sites and where inadequate moisture is provided. It is prone to few pest problems but may get stem rot or leaf blight where too much shade prevents the leaves and soil from drying out.