Chelone obliqua

Chelone obliqua, oblique turtlehead, is a species closely related to Penstemons. It is a remarkable and easy to grow perennial. The rootstock is strong and the growth is rapid, it adapts to all moist to wet soils. The flowering spikes, visible in summer, are dense and display a magnificent dark pink. The glossy foliage, of a beautiful bright green, is abundant. It is a carefree plant.

Oblique turtlehead belongs to the Scrophulariaceae family. This species is native to the Southeastern United States and is found in damp woods from Minnesota to Massachusetts. It is an herbaceous perennial with an upright habit, the growth is quite rapid and it is a perfectly hardy plant. It chooses the end of summer to bloom. The flowers, similar to miniature foxgloves, measure 1 to 2 cm (1in) long and are arranged in short, dense terminal spikes. Their colour, nuanced, and ranging from pinkish white to dark pink, is enhanced by a small yellow beard on the lip. Separated into two slightly open lips, they measure 1 to 2 cm (1in) long. The dark green glossy foliage is inserted on rounded section stems. The ovate and dentate laminae bear a well-marked vein; they measure 20 cm (8in) long. The taproot is thick and fibrous. The turtlehead spreads via rhizomes.

Chelone obliqua is completely indifferent regarding its exposure to the sun, so it is perfect for bringing some colour to a shady corner of the garden. Just make sure to place it in a cool and preferably moist spot, especially in summer. Bridging the gap between summer blooms and the arrival of asters, the oblique turtlehead is valuable in perennial beds alongside geraniums, lobelias, rudbeckias, and grasses. It will also thrive on the banks and shores of water features, where it will contribute to stabilisation.