Troubleshooting
Nandina Gulf Stream problems — and how to fix them
Nandina Gulf Stream (Nandina domestica 'Gulf Stream') 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.
Poor red colour in shade
The signature fiery winter foliage only develops in cool weather and good light; in deep shade the leaves stay green and dull.
Cyanogenic berries (when present)
Any berries that do form contain cyanogenic glycosides hazardous to birds, pets, and livestock; 'Gulf Stream' fruits sparsely, but remove berries where animals graze.
Chlorosis in alkaline soil
Very high pH can cause yellowing; though adaptable, it colours best in slightly acidic, well-drained soil, so acidify markedly alkaline ground.
Legginess if neglected
Old canes can thin at the base over time; cut the oldest canes to the ground in late winter to renew dense, colourful growth.
Prevent nandina gulf stream problems before they start
Most nandina gulf stream issues are care-mismatch, not bad luck. Dial in the basics:
Looking for nandina gulf stream in general rather than its problems? Read the full nandina gulf stream care guide — light, water, soil and feeding.
Nandina Gulf Stream problems — FAQ
Why is my nandina gulf stream poor red colour in shade?
The signature fiery winter foliage only develops in cool weather and good light; in deep shade the leaves stay green and dull.
Why is my nandina gulf stream cyanogenic berries (when present)?
Any berries that do form contain cyanogenic glycosides hazardous to birds, pets, and livestock; 'Gulf Stream' fruits sparsely, but remove berries where animals graze.
Why is my nandina gulf stream chlorosis in alkaline soil?
Very high pH can cause yellowing; though adaptable, it colours best in slightly acidic, well-drained soil, so acidify markedly alkaline ground.
Why is my nandina gulf stream legginess if neglected?
Old canes can thin at the base over time; cut the oldest canes to the ground in late winter to renew dense, colourful growth.