root rot on Sempervivum
Quick answer
If your Sempervivum has root rot, the most likely cause is: Sempervivum (hens and chicks) are alpine succulents native to rocky, free-draining habitats; when their soil stays wet — from rainfall, melting snow and slush that refreezes, or routine overwatering — the rosettes cannot tolerate the saturated, oxygen-poor conditions and their roots and crowns rot, especially where cold-hardy semps are planted in heavy or water-retentive soil.
Start here:
- 1. Plant sempervivums in a sandy, well-drained potting mix in a shallow container, or in berms that are 70 to 80 percent fine gravel or crushed lava rock, and water only when the soil mix is actually dry.
- 2. Site them on a slope or mound so that melting snow and rainfall drain away from the crown, pull the dead hen rosettes promptly after flowering so rot does not spread to the surrounding chicks, and shelter them from prolonged wet conditions.
Why Sempervivum gets root rot
Sempervivum
Sempervivum (hens and chicks) are alpine succulents native to rocky, free-draining habitats; when their soil stays wet — from rainfall, melting snow and slush that refreezes, or routine overwatering — the rosettes cannot tolerate the saturated, oxygen-poor conditions and their roots and crowns rot, especially where cold-hardy semps are planted in heavy or water-retentive soil.
How to reverse root rot on Sempervivum
- 1
Plant sempervivums in a sandy, well-drained potting mix in a shallow container, or in berms that are 70 to 80 percent fine gravel or crushed lava rock, and water only when the soil mix is actually dry.
- 2
Site them on a slope or mound so that melting snow and rainfall drain away from the crown, pull the dead hen rosettes promptly after flowering so rot does not spread to the surrounding chicks, and shelter them from prolonged wet conditions.
Keep root rot off this Sempervivum
Provide full sun to partial shade and excellent drainage, allow the soil to dry between waterings, and avoid siting sempervivums where rain, snowmelt, or irrigation can pool against the rosettes in winter.