Echinocereus reichenbachii (Lace Cactus)

Echinocereus reichenbachii, commonly known as the Lace Cactus or Hedgehog Cactus, is a small, clumping cactus species celebrated for its showy flowers. Known for its hardiness and adaptability, this cactus is a popular choice and is frequently cultivated in gardens and container settings.

The Lace Cactus is a member of the Cactaceae family, which also includes the popular Chrismas cactus, prickly pear (opuntia), pincushion cactus (mammillaria), and the iconic saguaro cactus and San Pedro cactus.

Description

The Lace Cactus is a small, cylindrical cactus with distinctive ribs and a dense covering of spines flattened against the stem. Although relatively small, it is well-known for its large, brightly colored flowers, typically pink, purple, or magenta, that can cover a significant portion of the plant, creating a spectacular floral display.

This cactus is also known for its clumping habit, often forming small groups of up to 12 individual stems that grow close together.

Native Habitat

This cactus is native to the southern United States, particularly in Colorado, Texas, Oklahoma, New Mexico, and parts of northern Mexico. It thrives in arid desert environments and is typically found growing on rocky slopes, limestone outcrops, and grasslands. The plant is well-adapted to full sun and can endure extreme temperatures, making it a resilient species in dry, hot climates.

Plant Type and Habit

The Lace Cactus is a perennial erect cactus with a clumping habit. This means it often grows in small clusters of individual stems that share a root system.

Plant Size

This cactus is relatively small, typically growing to a height of about 3-12 inches (7-30 cm). The individual stems are cylindrical and can reach a diameter of 2-4 inches (5-10 cm). The plant’s spread is modest, usually around 12-18 inches (30-45 cm), depending on the number of stems in the clump.

This cactus’s compact size and slow growth make it ideal for small gardens, rock gardens, or container gardening.

Cactus Flowers

One of the most striking features is its large, showy flowers. The funnel-shaped flowers typically measure 2-5 inches (5-12 cm) across and are bright pink, magenta, or purple. The flowers are produced at the top of the cactus and emerge from the areoles (small bumps on the cactus’s ribs).

The flowers are day-blooming and remain open for several days, offering a stunning display of color. The blooms also have a light fragrance, adding to their appeal.

The Lace Cactus blooms during the late spring and early summer months. When grown in optimal conditions, the cactus can produce multiple blooms, creating a vibrant display of color.

Stem and Spines

The stem features 10-19 straight or slightly undulate ribs divided into distinct tubercles. The areoles are vertically elongated and woolly when young. It has 20-36 radial spines, slender and closely held against the ribs, varying in color from white to tan, pink, or black. Central spines are usually absent but can be up to 7, firm, and often darker with brown tips.

Award

Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society.

Hardiness

Echinocereus reichenbachii is quite cold and heat tolerant and can be grown in a wide range of temperatures. It is hardy in USDA zones 5-10, making it one of the more frost-tolerant cacti species. The plant can tolerate temperatures as low as -10°F (-23°C), provided it is kept dry during the winter.

Uses

The Lace Cactus is commonly used as an ornamental plant in rock gardens, xeriscaping, and desert landscapes. Its small size and vibrant flowers also make it a popular choice for container gardening and indoor collections.

Wildlife

The bright flowers attract pollinators, such as bees, which help pollinate the flowers, ensuring the plant can produce seeds and reproduce.

Toxicity

This cactus is non-toxic to humans and pets. However, its spines can cause physical irritation if handled without care. It’s best to handle the plant with gloves to avoid injury from the sharp spines.

Deer and Rabbits

The spines are a natural deterrent to deer and rabbits, which tend to avoid this cactus.

Drought Tolerance

Like many desert cactus plants, the Lace Cactus is highly drought-tolerant. Its ability to store water in its stem allows it to survive extended periods without rain. Once established, it requires minimal watering, making it an ideal plant for dry, low-water environments.

Invasiveness

Echinocereus reichenbachii is not considered an invasive species. It grows slowly and does not spread aggressively, making it easy to manage in both natural and cultivated settings.

Benefits

The primary benefits of growing Echinocereus reichenbachii include its ornamental value, low maintenance needs, and drought tolerance. Its small size and vibrant flowers make it a perfect addition to rock gardens, while its ability to survive with minimal water makes it an excellent choice for xeriscaping or other low-water-use gardens.

Lace Cactus Care

Light: Requires full sun or bright, indirect light for 6-8 hours daily. Indoor plants thrive near south-facing windows.

Soil: Use a well-draining cactus or succulent mix. Add sand or perlite to improve aeration and prevent water retention.

Water: Water thoroughly during the growing season (spring/summer), but allow soil to dry out completely between waterings. In winter, reduce watering to prevent root rot.

Fertilizer: Feed with a cactus fertilizer diluted to half strength once a month during the growing season. Avoid fertilizing in winter.

Pruning: No pruning needed, except to remove dead or damaged parts. Handle carefully due to sharp spines.

Propagation: Propagate through stem cuttings or seeds. Allow cuttings to callous before planting in well-draining soil.

Pests and Diseases: Watch for mealybugs, spider mites, and root rot caused by overwatering. Treat infestations with insecticidal soap or neem oil.