PlantFun
Plant Needs
Sunlight
Full sun to partial shade; tolerates dappled woodland shade for short periods
Watering
Water deeply when the top 2–3 cm of soil is dry; avoid standing water to prevent root rot
Temperature
Hardy to USDA zone 5; tolerates mild winter frost and moderate summer heat
Characteristics
- Leaf: Simple, opposite, lanceolate to ovate leaves with smooth margins and slightly pubescent undersides
- Flower: Tubular, pale lavender to purple blooms with five rounded lobes; open for one day
- Stem: Erect, green, slightly branched stems with fine hairs
Care Guide
Watering
Keep soil consistently moist during active growth periods
Fertilization
Light, diluted feed once monthly. Use a balanced, low-strength fertilizer to support bloom production
Composted banana peel tea：Soak fully composted banana peels in water for 24 hours; dilute 1:20 for root drench to avoid nutrient burnPruning
- Deadhead spent blooms regularly to encourage extended flowering through mid-summer
- Cut back stems to ground level in late autumn to promote healthy new spring growth
- Thin overcrowded clumps every 2–3 years to improve airflow and reduce disease risk
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Non-toxic to cats
Humans: No documented toxic effects for humans
Garden Uses & Culture
Culture: N/A
Usage: Native pollinator support for bees, butterflies, and hummingbirds; wildflower garden planting
