Narcissus — the small, multi-headed, often intensely fragrant species — bloom slightly later than daffodils and bring a delicacy to spring arrangements that the larger trumpet forms cannot match. Varieties like 'Thalia', 'Jetfire', and the jonquil hybrids carry multiple flowers per stem and a fragrance that fills a room. Plant in autumn at three times their depth.
Like daffodils, they must be conditioned alone before mixing with other flowers — the sap is toxic to companion stems. After a 12-hour solo soak the sap dissipates and they can be combined freely.
Narcissus Basal Rot
Brown rot starting at the base of the bulb, spreading upward; soft, decaying tissue and stunted or failed growth in spring. Fungal growth may appear pink or white.
Discard infected bulbs. Plant only firm, healthy bulbs in well-draining soil. Avoid hot, wet conditions during summer dormancy and rotate planting sites.
Narcissus Yellow Stripe Virus
Yellow or pale streaks running lengthwise along leaves; distorted foliage and reduced flower size or vigor over successive years.
No cure. Remove and destroy infected plants. Control aphids, which spread the virus, and buy certified virus-free bulbs.
Botrytis (grey mould)
Grey fuzzy mould on petals and stems, worst in cool wet conditions.
Remove affected parts immediately. Improve air circulation. Avoid overhead watering. Apply copper fungicide if severe.