MILKWEED YELLOW Semi Tropical Live Plant Perennial Butterfly Garden Host Asclepias Starter Size 4 Inch Pot Emerald TM Economical Starter Size Plant growing in a 4 inch diameter pot. Plant will average a 6 to 10 inches tall. No bloom or bud on arrival. Bright colored, easy to grow perennial. Tall open growing habit, works great for mixed perennials as backdrop for other plants. Attracts Hummingbirds, Butterflies Tropical. Recommended for USDA Zones 8B, 9, 10, 11 (Generally root hardy in 8B, 9A, Cold Protection Recommended All Zones for the best year round appearance, earliest bloom, and longest life.)