Turtlehead (Chelone obliqua): Late-Summer Bloomer for Moist Shade

Turtlehead Overview

Turtlehead (Chelone obliqua) is a sturdy, vertical perennial with deep-green, boldly veined leaves and dense terminal spikes of tubular, two-lipped dark pink to purple flowers. Each lower lip bears a sparse yellow beard. Blooming for at least 4 weeks from late summer into fall (longer with deadheading), it's an excellent mid-border plant for moist, shady sites.

Growing Requirements

• Light: Partial shade; tolerates dense shade or full sun if soil is soggy
• Soil: Moist to wet; tolerates heavy clay and bog conditions
• Size: 1–3 feet tall and wide
• Maintenance: Moderate

Propagation & Problems

Propagate by seed in early spring, division in spring, or soft-tip cuttings in late spring/early summer. Prone to powdery mildew, rust, fungal leaf spots, slugs, and snails. Native perennial for beds, borders, and waterside plantings.