Troubleshooting
Wallich's Strobilanthes problems — and how to fix them
Wallich's Strobilanthes (Strobilanthes wallichii) 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.
Red spider mite under glass
Warm, dry conditions under glass or indoors encourage spider mites — look for pale stippling and fine webbing. Raise humidity, spray with water, and treat with insecticidal soap or a biological control such as Phytoseiulus persimilis.
Failure to reshoot in spring
Extreme wet or cold winters without crown protection can kill the rootstock. Mulch the crown heavily with dry bark or bracken before winter frosts. If slow to emerge, be patient — new shoots may not appear until late spring.
Slug and snail damage on new shoots
Emerging spring shoots are vulnerable to slug and snail attack. Apply organic slug pellets or a copper ring barrier around the crown as shoots appear. Inspect the crown at night and collect pests manually.
Prevent wallich's strobilanthes problems before they start
Most wallich's strobilanthes issues are care-mismatch, not bad luck. Dial in the basics:
Wallich's Strobilanthes problems — FAQ
Why is my wallich's strobilanthes red spider mite under glass?
Warm, dry conditions under glass or indoors encourage spider mites — look for pale stippling and fine webbing. Raise humidity, spray with water, and treat with insecticidal soap or a biological control such as Phytoseiulus persimilis.
Why is my wallich's strobilanthes failure to reshoot in spring?
Extreme wet or cold winters without crown protection can kill the rootstock. Mulch the crown heavily with dry bark or bracken before winter frosts. If slow to emerge, be patient — new shoots may not appear until late spring.
Why is my wallich's strobilanthes slug and snail damage on new shoots?
Emerging spring shoots are vulnerable to slug and snail attack. Apply organic slug pellets or a copper ring barrier around the crown as shoots appear. Inspect the crown at night and collect pests manually.