Troubleshooting
Heldreich's Sage problems — and how to fix them
Heldreich's Sage (Salvia heldreichiana) is generally low-drama, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Root rot from winter wet
The principal cause of failure in UK gardens; plant on a raised bed or slope with gritty soil, and avoid mulching around the crown — a gravel mulch helps keep the collar dry.
Aphids on new growth
Soft spring shoots attract aphid colonies that distort growth and reduce vigour; blast off with a strong jet of water or use an insecticidal soap spray; established plants generally outgrow minor infestations.
Prevent heldreich's sage problems before they start
Most heldreich's sage issues are care-mismatch, not bad luck. Dial in the basics:
Heldreich's Sage problems — FAQ
Why is my heldreich's sage root rot from winter wet?
The principal cause of failure in UK gardens; plant on a raised bed or slope with gritty soil, and avoid mulching around the crown — a gravel mulch helps keep the collar dry.
Why is my heldreich's sage aphids on new growth?
Soft spring shoots attract aphid colonies that distort growth and reduce vigour; blast off with a strong jet of water or use an insecticidal soap spray; established plants generally outgrow minor infestations.