RHS Other common names
bifoil, double leaf, heart-leaf twayblade
Herbaceous Perennial
A terrestrial orchid producing, from a short rhizome, an upright stem with a single pair of broad, pale yellowish-green leaves with prominent veins. In mid to late summer a spike of flowers emerges up to 60cm tall with up to 100 flowers, but often shorter. The yellow-green flowers are hooded, with a long, forked lip
Position
Full sun, Partial shade
Soil Types
Chalk, Loam, Sand
Max Height
0.1-0.5 metres
Max Spread
0-0.1 metre