PlantFun
Plant Needs
Sunlight
Full sun to partial shade; tolerates coastal salt spray and windy conditions
Watering
Water deeply when top 2–3 cm of soil dries out; drought-tolerant once established
Temperature
Hardy to 0°C; thrives in cool coastal temperatures, avoids extreme summer heat above 32°C
Characteristics
- Leaf: Arrow-shaped medium green foliage, smooth margins, 3–8 cm long
- Flower: Trumpet-shaped purple blooms, 4–7 cm wide, closing at midday
- Stem: Slender twining herbaceous stems with sparse fine hairs
Care Guide
Watering
Water regularly to support growth and flowering; avoid waterlogging
Fertilization
Diluted balanced liquid feed once every 4 weeks. Avoid over-fertilization to prevent excessive foliage growth over blooms
Eggshell powder topdress：Crush dried eggshells into fine powder; sprinkle 1 tsp per plant around the base and water in to release nutrientsPruning
- Trim back overgrown stems in late winter to stimulate new spring growth
- Remove spent blooms to maintain a tidy garden appearance
- Cut back tangled vines to prevent overcrowding of neighboring plants
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: No listed toxicity to cats
Humans: No documented toxic effects for humans
Garden Uses & Culture
Culture: N/A
Usage: Ornamental groundcover or climbing vine for coastal rock gardens and sand dune stabilization
