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Tweedia Milkweed/Butterfly Flower Seeds

Tweedia Milkweed/Butterfly Flower Seeds


True-blue flowers are rare and these aquamarine gems will sparkle in the garden. Flower buds and older flowers are lavender, adding extra flair. Blue milkweed, also known as star of Argentine and southern star, draws in pollinators to its sweetly scented flowers, but unlike other milkweeds, it is not considered critical for monarch caterpillars. This cutting flower adds the perfect "something blue" to floral arrangements. Perennial in USDA zones 10–11; otherwise grown as an annual. In areas where perennial plants are vining shrubs, they may reach 10' over time. Sap is toxic; avoid eye/skin contact and do not ingest. Deer resistant.
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Variety Info

Family: Apocynaceae

Native: Brazil and Uruguay

Hardiness: Perennial in USDA zones 10–11; often grown as an annual

Exposure: Full Sun to Part Shade

Bloom Period: Summer

Plant Dimensions: 28" when grown as an annual. In areas where plants are perennial they become a vining shrub, growing to 10' over time.

Variety Info: Aquamarine flowers approximately Β½"–1" wide which fade to purple as they age

Attributes: Attracts Pollinators, Cut Flower, Deer Resistant

Sowing Info

When to Sow Outside: 2 to 4 weeks before your average last frost date. Mild Climates: Fall for spring germination.

When to Start Inside: 6 to 8 weeks before your average last frost date.

Days to Emerge: 21 – 28 Days

Seed Depth: ΒΌ"

Seed Spacing: A group of 2 to 3 seeds every 12" – 24"

Thinning: When seedlings have 3 sets of leaves, thin to one every 12" – 24"