Flower-of-an-Hour – Seeds (Hibiscus trionum)

Flower-of-an-Hour (Hibiscus trionum) is an eye-catching annual known for its delicate, pale yellow flowers with deep maroon centers that open in the morning and fade by evening. Blooming from summer to early autumn, this compact plant adds charm to borders, containers, and cottage-style gardens. Easy to grow and drought-tolerant once established, it attracts pollinators while providing fleeting, yet memorable, blooms that brighten any garden.

Why Grow "Flower-of-an-Hour"

• Pale yellow flowers with striking maroon centers

• Blooms open in the morning and fade by evening

• Compact, drought-tolerant, and easy-to-grow

• Attracts bees, butterflies, and other pollinators

Key Features

• Type: Annual (Hibiscus trionum)

• Height: 30–50 cm

• Flowering: Summer to early autumn

• Position: Full sun

• Uses: Borders, containers, cottage gardens, pollinator-friendly gardens

Ideal For

• Cottage-style and naturalistic gardens

• Borders, containers, and small spaces

• Pollinator-friendly garden designs

• Gardens with morning bloom interest

Sowing & Growing

• Sow indoors: February–April in trays or pots

• Sow outdoors: April–May after frost

• Germination: 7–14 days at 18–22°C

• Thin seedlings 25–30 cm apart

• Prefers well-drained soil in full sun