Greene's Milkweed Seed
Botanical name: Asclepias californica greenei
Common name: Green's milkweed
Life cycle: Seed Weight: N/A Amount: 1 (one seed) One (1) seed. You determine the quantity that is best for your needs. Northern California ecotype. 2025 collection Contra Costa County.
Quick Germination Guide — Asclepias californica greenei Hydrate seeds: Soak in warm water or a damp paper towel at 75°F for 48 hours. Expose root: Gently clip or peel back the seed coat to free the root tip without damaging it. Encourage root growth: Place seed in damp paper towel on a plate. Keep moist and warm (75–85°F). Cover loosely with plastic to reduce evaporation. Transition to substrate: When root grows, place in well-draining medium (perlite works well). Keep seed above the surface. Cover with plastic until leaves appear. Grow on: Once leaves form, remove cover. Provide bright light and warmth.
Asclepias greenei is a rare Northern California native milkweed with soft pink to rose-colored flower clusters and smooth, woolly foliage. It grows in dry foothill along the hydraulic washes and is valued as a regional native plant that can support monarchs and other pollinators. A good fit for collectors of uncommon native species and habitat-focused gardeners. Caution, sap should not be consumed by humans and can cause irritation to the eyes. Shipping cost is a flat rate equivalent to $5.25 per order. All orders are settled in Zaps (bitcoin).