Helleborus × hybridus (Lenten rose) is a semi-evergreen perennial. Thrives in neutral to alkaline soils that are moist, fertile and humus-rich. Partial shade is ideal but can tolerate full sun. Provide shelter from strong, cold winds. Mulch annually in autumn. Hardy H4 uk.
Ammi Majus (Bishop's flower) has lacy, white flowers, like a more delicate form of cow parsley. Ammi Majus is the best white filler-foliage plant you can grow and spectacular arranged in a great cloud on its own. It forms larger, more prolific plants from an autumn sowing.