Horsetail

Binomial name

Equisetum spp.

Common names

Horsetail, Scouring Rush

Description

Equisetum, or Horsetail, is a fascinating plant that dates back to prehistoric times, often referred to as a "living fossil." Its unique appearance, with tall, slender stems resembling bamboo, gives it a striking, architectural look in any garden or landscape. The stems are jointed and grow in a dense, upright formation, creating a natural vertical element. Equisetum is known for its ancient lineage and medicinal uses, though it’s mostly appreciated today for its ornamental value. It thrives in wet or boggy areas, often found along stream banks or in moist woodland settings, making it ideal for water gardens, ponds, or areas with consistently damp soil.

Light requirements

Equisetum prefers partial shade to full sun. While it can tolerate some sun, it grows best in a location with indirect light or light shade, which helps keep the plant from becoming too stressed. In full sun, the stems may dry out more quickly, but in shadier spots, it may not thrive as vigorously. A balance of sunlight and moisture is key to keeping it healthy.

Soil preferences, including pH and drainage

This plant thrives in moist, well-drained soil that is slightly acidic to neutral, with a pH ranging from 5.5 to 7.0. Equisetum is often found in damp, boggy areas in the wild, so it enjoys soil that retains moisture without becoming waterlogged. If growing in containers, be sure to use a mix that stays evenly moist and provides good drainage to prevent water from sitting around the roots for too long.

Water needs

Horsetail requires consistently moist soil, so regular watering is essential, especially during dry spells. It is perfect for water gardens or pond edges, as it thrives in standing water or very damp soil. While it can tolerate some drier conditions once established, it will perform best when kept evenly moist throughout the growing season. In winter, reduce watering slightly, but avoid letting the soil dry out completely.