Hummingbird Plant, Flame Acanthus

Binomial name

Anisacanthus quadrifidus

Common names

Four-nerve Acanthus, Mexican Flame, Flame Acanthus

Description

Anisacanthus quadrifidus, or Four-nerve Acanthus, is a stunning, heat-tolerant shrub that adds a splash of vibrant color to any garden. With its long, slender green leaves, this plant is known for its striking orange-red tubular flowers that resemble flames, which bloom profusely from summer through fall. Its compact, bushy growth habit makes it ideal for smaller spaces, borders, or containers. The Four-nerve Acanthus is not only a showstopper for its bright flowers but also attracts hummingbirds and butterflies, adding life and movement to the garden. It’s a tough plant, thriving in dry, sunny conditions, making it perfect for xeriscaping or water-wise gardens.

Light requirements

This plant thrives in full sun and needs at least 6 hours of direct sunlight each day to bloom abundantly. It can tolerate some light shade, but flowering may be reduced in less sunny conditions. For the best performance, place it in a bright, sunny spot where it can soak up plenty of sunlight throughout the day.

Soil preferences, including pH and drainage

Anisacanthus quadrifidus prefers well-draining, sandy or loamy soil with a slightly acidic to neutral pH, ranging from 6.0 to 7.0. It’s quite adaptable to poor soils, as long as they drain well. This plant is drought-tolerant and thrives in dry conditions, but it does require good drainage to avoid root rot. If planting in containers, be sure to use a well-draining potting mix to keep the roots healthy.

Water needs

This plant is very drought-tolerant once established and requires minimal watering once it’s settled in. Water it regularly during the growing season, especially in dry periods, but allow the soil to dry out between waterings. Overwatering can lead to root rot, so it’s important to let the soil dry out somewhat before adding more water. During the cooler months, reduce watering as the plant’s growth slows.