Black-Eyed Susan Vine 'Spanish Eyes'
Botanical Name: Thunbergia alata
Hardiness: Perennial in USDA zones 10 and warmer, otherwise grown as an annual.
Plant Dimensions: 5'–8' long vine; in frost-free areas it may reach 20'.
Variety Information: 1"–1½" wide, varying sunset hues with contrasting dark "eye"
Exposure: Full sun to part shade
Bloom Period: Summer to frost
Attributes: Attracts Pollinators, Cut Flower
When to Sow Outside: RECOMMENDED. 1 to 2 weeks after your average last frost date, and when soil temperature is 65°–80°F.
When to Start Inside: 6 to 8 weeks before your average last frost date. Transplant outside after average last frost. Use biodegradable pots to prevent root disturbance when transplanting.
Days to Emerge: 15–10 days
Seed Depth: ⅛"
Seed Spacing: 1 seed every 6"
Thinning: Not required.