- Common Name: Blue Porterweed
- Botanical Name: Stachytarpheta jamaicensis
- Family: vervain family
- Type: perennial
- Zone Hardiness: 9–11
- Height: 1–2ft
- Width: 3–4ft
- Blooms: Blue or purple tubular flowers with a white center
- Bloom Time: spring to late autumn
- Sun: Full sun to part shade
- Leaves: Opposite or subopposite, ovate to lanceolate, dark green with serrate margins
- Maintenance: Low for beginners; requires occasional pruning to maintain its shape.
- Tolerates: Drought, heat, humidity, and salt
- Attracts: Butterflies, including Monarchs, Gulf Fritillaries, and Tropical Buckeyes
- Texas Superstar: No
- Texas Native: No
- Invasive: No