Red lupine (Lupinus polyphyllus) is a striking perennial plant known for its tall spikes of vibrant red flowers. Here's some information about it:

1. Description: Red lupine is a herbaceous perennial plant that typically grows to a height of 3 to 4 feet, with a spread of about 1 to 2 feet. It features palmately compound leaves with 7 to 11 leaflets and produces tall spikes of pea-like flowers. The flowers are typically bright red or reddish-purple and are arranged in dense, elongated clusters called racemes.

2. Growing Conditions: Red lupine thrives in full sun to partial shade and well-drained soil. It is commonly found in open woodlands, meadows, and along roadsides. Red lupine is drought-tolerant once established and can tolerate poor soil conditions. It has a taproot system, allowing it to access deep soil moisture.

3. Blooming Season: Red lupine typically blooms in late spring to early summer, depending on the climate. The flowers are attractive to bees, butterflies, and other pollinators. Deadheading spent flowers can encourage prolonged blooming and prevent self-seeding if desired.

4. Maintenance: Red lupine is relatively low-maintenance and requires little care once established. It may benefit from occasional watering during prolonged dry periods, especially in the first year of establishment. Mulching around the base of the plants can help retain soil moisture and suppress weeds.

5. Landscaping Uses: Red lupine is well-suited for wildflower gardens, cottage gardens, and naturalistic landscapes. Its vibrant red flowers and attractive foliage add color and texture to mixed perennial beds and borders. Red lupine also attracts beneficial insects to the garden and is deer-resistant.

Overall, red lupine is a stunning and easy-to-grow perennial plant that adds color and visual interest to gardens and landscapes. With its vibrant flowers and easy-care nature, it's a valuable addition to any garden or landscape design.