Troubleshooting
Root Beer Plant problems — and how to fix them
Root Beer Plant (Piper auritum) 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.
Frost dieback
Tops are killed by frost in zones 8–9, but the root system survives and regrows vigorously in spring when mulched. In zone 8, mulch heavily in autumn. In USDA zone 7 and colder, grow in containers and bring indoors for winter.
Invasive spreading
In warm, moist climates (zones 9–11), Piper auritum can spread aggressively via suckering roots and self-seeding and is considered invasive in Hawaii and parts of the Pacific. Contain spread by regular root pruning or growing in large containers.
Aphids on new growth
Tender growing tips attract aphid colonies which curl the leaves and stunt new shoots. Blast off with a strong jet of water or apply insecticidal soap. Encourage natural predators such as ladybirds in the garden.
Prevent root beer plant problems before they start
Most root beer plant issues are care-mismatch, not bad luck. Dial in the basics:
Root Beer Plant problems — FAQ
Why is my root beer plant frost dieback?
Tops are killed by frost in zones 8–9, but the root system survives and regrows vigorously in spring when mulched. In zone 8, mulch heavily in autumn. In USDA zone 7 and colder, grow in containers and bring indoors for winter.
Why is my root beer plant invasive spreading?
In warm, moist climates (zones 9–11), Piper auritum can spread aggressively via suckering roots and self-seeding and is considered invasive in Hawaii and parts of the Pacific. Contain spread by regular root pruning or growing in large containers.
Why is my root beer plant aphids on new growth?
Tender growing tips attract aphid colonies which curl the leaves and stunt new shoots. Blast off with a strong jet of water or apply insecticidal soap. Encourage natural predators such as ladybirds in the garden.