Troubleshooting
Blue Spruce Sedum problems — and how to fix them
Blue Spruce Sedum (Sedum reflexum) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Root rot
Occurs in waterlogged or poorly drained soil. Improve drainage immediately and reduce watering frequency.
Leggy growth
Caused by low light. Move to a sunnier position and trim back straggly stems to encourage compact regrowth.
Aphids
May cluster on new growth in spring. Knock off with a strong jet of water or treat with insecticidal soap.
Vine weevil
Grubs can eat roots in container-grown plants. Use biological control (nematodes) or an appropriate compost drench in late summer.
Winter die-back
Lower leaves may brown and fall in cold wet winters; new growth emerges from the tips in spring and is perfectly normal.
Prevent blue spruce sedum problems before they start
Most blue spruce sedum issues are care-mismatch, not bad luck. Dial in the basics:
Blue Spruce Sedum problems — FAQ
Why is my blue spruce sedum root rot?
Occurs in waterlogged or poorly drained soil. Improve drainage immediately and reduce watering frequency.
Why is my blue spruce sedum leggy growth?
Caused by low light. Move to a sunnier position and trim back straggly stems to encourage compact regrowth.
Why is my blue spruce sedum aphids?
May cluster on new growth in spring. Knock off with a strong jet of water or treat with insecticidal soap.
Why is my blue spruce sedum vine weevil?
Grubs can eat roots in container-grown plants. Use biological control (nematodes) or an appropriate compost drench in late summer.
Why is my blue spruce sedum winter die-back?
Lower leaves may brown and fall in cold wet winters; new growth emerges from the tips in spring and is perfectly normal.