PlantFun
Plant Needs
Sunlight
Full sun to partial shade; thrives in direct sunlight for most of the day, tolerates light shade in hot climates
Watering
Water deeply when top 5–10 cm of soil is dry; tolerate short periods of drought without severe damage
Temperature
Hardy to -30°C during dormancy; grows best at 18–25°C during active vegetative and flowering growth
Characteristics
- Leaf: Alternate, ovate to lanceolate leaves with rough, hairy surfaces and serrated margins
- Flower: Daisy-like yellow composite flowers, 5–10 cm in diameter, resembling small sunflowers
- Stem: Erect, hairy green stems with branching upper portions
- Tuber: Irregular, knobby underground tubers with thin, brown skin and crisp white flesh
Care Guide
Watering
Keep soil consistently moist during active growth; avoid waterlogging to prevent tuber rot
Fertilization
Light application of balanced fertilizer at planting. Excess nitrogen may promote leafy growth at the expense of tuber development
Composted banana peel tea：Soak fully composted banana peels in water for 3 days; dilute 1:20 for root drench; avoid raw peels to prevent pest infestationsPruning
- Remove lower yellowing leaves to improve airflow and reduce disease risk
- Pinch back upper stems in mid-summer to encourage bushier growth and increase tuber yield
- Cut back dead foliage to ground level after the first autumn frost to prepare for dormancy
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Non-toxic to cats; no known adverse effects from ingestion
Humans: Non-toxic to humans; tubers are edible when cooked or raw
Garden Uses & Culture
Culture: N/A
Usage: Edible tubers for cooking; ornamental garden plant; pollinator-friendly nectar source for bees and butterflies
