Troubleshooting
Yellow Archangel problems — and how to fix them
Yellow Archangel (Lamium galeobdolon) 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.
Invasive spread
The straight species spreads vigorously and is listed as an invasive weed in several US states. Plant named cultivars such as 'Hermann's Pride' or 'Florentinum' which are less rampant, and remove unwanted runners promptly.
Leaf scorch in sun
Direct sun causes silver-marbled leaves to bleach and develop brown, papery patches. Move or provide shade if this occurs; the plant recovers quickly once sheltered.
Legginess after flowering
After the main spring flower flush, stems can become long and untidy. Trim back by one-half to two-thirds to encourage a fresh flush of well-marked foliage.
Prevent yellow archangel problems before they start
Most yellow archangel issues are care-mismatch, not bad luck. Dial in the basics:
Yellow Archangel problems — FAQ
Why is my yellow archangel invasive spread?
The straight species spreads vigorously and is listed as an invasive weed in several US states. Plant named cultivars such as 'Hermann's Pride' or 'Florentinum' which are less rampant, and remove unwanted runners promptly.
Why is my yellow archangel leaf scorch in sun?
Direct sun causes silver-marbled leaves to bleach and develop brown, papery patches. Move or provide shade if this occurs; the plant recovers quickly once sheltered.
Why is my yellow archangel legginess after flowering?
After the main spring flower flush, stems can become long and untidy. Trim back by one-half to two-thirds to encourage a fresh flush of well-marked foliage.