How to Grow Wormwood
Artemisia absinthium
Wormwood is a tough, drought-tolerant sub-shrub grown for its striking silvery-grey, deeply cut aromatic foliage. Plant in full sun and poor to average well-drained soil — rich soil produces lax, less fragrant growth. Cut back by half to two-thirds each spring before new growth to keep it bushy and prevent woodiness. Almost no feeding needed. Hardy to -20°C once established.
Yearly Lifecycle
Care Essentials
Rarely needed. A light feed in spring on very poor soils only. Over-feeding produces lax, less aromatic growth.
Watch For
- Aphids on soft new growth
- Root rot in waterlogged soil
Companions
Lavender, Rosemary, Santolina, Sedum
Pet Safety
Care Requirements
Light
Full sun essential
Requires at least 6 hours of direct sun daily. Shade reduces fragrance and causes lax, floppy growth. South or west-facing positions are ideal.
Watering
Drought tolerant once established; avoid waterlogging
Water regularly in the first season to establish. Once established, very drought tolerant — water only during prolonged dry spells. Excellent drainage is essential; standing water causes root rot.
Fertilizing
Rarely needed; avoid on rich soils
Grows best in poor to average soil. A light balanced feed in spring is only warranted on very poor soils. Over-feeding leads to weak, less aromatic, floppy stems.
Pruning
Cut back hard in early spring
Reduce by half to two-thirds in March-April before new growth emerges. This prevents woodiness at the base and keeps the plant compact and bushy. Without pruning it becomes leggy and woody within a few years.
Mulching
Light mulch optional; keep crown dry
A light gravel mulch around the base improves drainage and reflects heat, which suits this Mediterranean-origin plant. Avoid heavy organic mulches that retain moisture around the crown.
Growing Tips
Poor soil is best
Wormwood thrives on neglect. Rich, fertile soil produces floppy, less fragrant growth. Plant in poor to average well-drained soil and avoid feeding.
Hard spring prune keeps it young
Cut back by half to two-thirds each spring before growth starts. Skip this and the plant becomes woody and bare at the base within 3-4 years.
Handle with care
Wormwood contains thujone, which is toxic in large quantities. Wash hands after handling and keep away from children. Do not consume without expert guidance.
