Blue Porterweed (Stachytarpheta jamaicensis) – Live Butterfly-Friendly Plant

Add nonstop color and pollinator activity to your garden with Blue Porterweed, a fast-growing tropical flowering plant known for its vivid purple-blue blooms and ability to attract butterflies year-round. This hardy plant produces tall flower spikes covered in small nectar-rich blossoms that hummingbirds, bees, and pollinators absolutely love. Perfect for warm climates, Blue Porterweed brings a wild tropical feel to gardens, patios, and butterfly landscapes.

Why You’ll Love It

• Produces vibrant purple-blue flower spikes
• One of the best plants for attracting butterflies and hummingbirds
• Blooms continuously in warm weather
• Fast-growing and easy to maintain
• Great for pollinator gardens and tropical landscapes
• Thrives in containers or planted in the ground
• Heat tolerant and drought resistant once established

Great for Containers

Blue Porterweed grows beautifully in pots, raised beds, and patio planters. Its upright growth and constant blooms make it an eye-catching addition to balconies, walkways, and small garden spaces.

Flowers & Appearance

The plant produces slender flowering spikes lined with brilliant blue-purple blossoms that bloom over an extended season. Its lush green foliage and airy branching habit create a soft tropical look while providing a steady nectar source for pollinators.

Growing Information

• Prefers full sun for best flowering
• Thrives in warm, tropical, and subtropical climates
• Fast-growing perennial in frost-free areas
• Mature size: approximately 2–4 ft tall
• Water regularly while establishing

Perfect for butterfly gardens, tropical landscapes, and pollinator-friendly spaces, Blue Porterweed delivers vibrant color, constant blooms, and lively garden activity all season long.