Black-Eyed Susan Vine (Thunbergia)
Thunbergia alata. Annual.
Cheerful, golden flower with rich, black centers. Also called clock vine. Plants will vine to about 6′ in open gardens, but stays 2-3′ long in patio containers or hanging baskets.
Planting & Harvesting
Seed Depth: 1/8″ (3mm)
Spacing: 1″ (3cm)
Sprouts In: 15-20 days
Thinning: 6″ (15cm)
Plant outdoors in a warm, sunny location and well-drained soil after last spring frost, or start indoors about six weeks before last spring frost date. Will exhibit best bloom production in the warm days of late summer and early fall. Pinch off faded flowers to encourage more blossoms.
May be grown as a tender perennial in warm climates.