How to grow jonquil
Overview
Jonquil (Narcissus jonquilla) is a fragrant, cool-season bulb from the Amaryllidaceae family, grown for its clusters of yellow, sweetly scented flowers in late winter to spring. It requires a distinct dry summer dormancy and should not be overwatered during that period.
Varieties
- Narcissus jonquilla 'Baby Moon' — Compact, early-flowering jonquil with small, bright yellow flowers.
- Narcissus jonquilla 'Pipit' — A popular bicolour jonquil with creamy petals and a yellow cup.
- Narcissus jonquilla 'Quail' — Late-flowering, very fragrant jonquil with multiple flowers per stem.
Soil Preparation
Jonquil prefers neutral to slightly acidic soil (pH 6.5–7.0) with excellent drainage. Improve heavy soil by adding coarse sand or grit, and incorporate a low-nitrogen bulb fertiliser before planting.
Growing Guide
Plant jonquil bulbs in autumn, 10–15 cm deep and 10–15 cm apart, in well-drained soil that does not stay wet over summer. Choose a full-sun position with at least 6 hours of direct light. Water regularly during active growth in autumn and winter, but keep dry from late spring through summer. Avoid heavy clay or waterlogged sites.
Care
Apply a balanced bulb fertiliser (e.g., 5-10-10) after flowering as leaves yellow, but do not cut foliage until it has fully died back. Lift and divide clumps every 3–4 years to prevent overcrowding and maintain vigour.
Companion Planting
Good companions include other cool-season bulbs like tulips, hyacinths, and bluebells, as well as low-growing perennials such as violas and primulas. Avoid planting near vigorous summer-growing plants that may compete for moisture or shade the bulbs during their dormant period.
Common Pests & Risks
Aphids and snails are the most common pests on jonquil foliage and flowers; control with a sharp spray of water or snail bait. Bulb rot occurs in poorly drained soil, so ensure good drainage and avoid overwatering during summer dormancy.
Harvesting
Harvest not relevant., All parts are toxic if eaten.
Troubleshooting
Yellowing leaves before flowers: usually due to overwatering or poor drainage. Brown leaf tips: caused by dry soil during active growth. Stunted growth: may indicate overcrowding or nutrient deficiency. No flowers: often from planting too shallow or insufficient sun. Bulb rot: always from wet soil during summer dormancy.