Stock Excelsior Avalanche Seeds

Stock Excelsior Avalanche Seeds (Matthiola incana) – Irish Plants Direct

 

A dazzling and highly fragrant biennial (Matthiola incana) grown for its tall spikes of pure white double flowers

Stock Excelsior Avalanche produces strong, upright plants with densely packed blooms that release a sweet perfume, making them a favourite for cottage gardens and cut flower arrangements. Their crisp white colour and stately form bring elegance and freshness to borders, beds, and seasonal displays

This reliable variety thrives in full sun and fertile, well drained soil. Perfect for cut flower gardens, scented borders, and wildlife friendly planting schemes

 

Seed Qty Approx 0.5 grams

 

Sow February to April indoors or direct outdoors from March

Germination 10 to 20 days at 15 to 18°C

Soil and Position Fertile, free draining soil in full sun

Height/Spread 45 to 60 cm tall, 25 to 30 cm spread

Flowering June to August

 

Sowing Instructions

 

Sow seeds thinly in trays of moist, free draining compost or directly outdoors in prepared soil. Lightly cover with fine soil and maintain temperatures at 15 to 18°C. Germination usually occurs within 2 to 3 weeks. Transplant seedlings when large enough to handle, spacing 25 to 30 cm apart. Harden off indoor seedlings and plant out after last frost

 

Grow and Maintenance

 

Water regularly during dry spells and feed lightly with a balanced fertiliser to encourage strong growth and abundant blooms. Remove spent flower spikes to prolong flowering. Stock prefers sunny positions and fertile soil, rewarding with fragrance and colour throughout summer

 

Uses and Benefits

 

Tall spikes of pure white double flowers

Highly fragrant blooms for borders and cut flowers

Elegant cottage garden favourite

Attracts pollinators to the garden

Perfect for beds, borders, and arrangements

 

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