Growing Pasque flower in a pot

Once established, Pulsatilla vulgaris is a low-maintenance perennial that thrives on neglect. Its low water need and deep taproot make it highly drought-tolerant. Water sparingly during prolonged dry spells in the first growing season to help roots establish, but thereafter rainfall alone is usually sufficient. Overwatering or poorly drained soil will quickly lead to crown rot, so err on the side of dryness. Feed lightly in March or April with a low-nitrogen fertiliser or a sprinkling of bonemeal. Pasque flower naturally grows in nutrient-poor soils, so heavy feeding encourages soft, lush growth that is prone to flopping and disease. A single annual feed is ample; too much fertility can actually shorten the plant's lifespan. Pulsatilla is hardy to zone 4 and needs no winter protection in temperate Europe. The crown is evergreen or semi-evergreen, and the plant benefits from good air circulation and a dry neck during winter. Avoid mulching around the base, as this traps moisture. A collar of grit or sharp sand is beneficial if your soil is on the heavy side. Pests are rarely a problem, though slugs and snails may nibble young foliage in early spring—check regularly and remove by hand if necessary. The plant is generally disease-free if sited correctly, but poor drainage invites fungal rots. Powdery mildew can occasionally appear in late summer on older foliage; simply remove affected leaves. The plant is toxic if ingested, so handle with care and site away from areas where children or pets play frequently.