Allium giganteum

Hardy Bulb

• Flowers in : Late spring to early summer
• Germination : Experience Useful
• Aftercare : Easy
• Ideal for : Borders
• Height : 4 feet

Description

One of the tallest of the allium species, the spectacular ball-shaped blooms are made up of more than 100 tiny bright purple flowers and have a diameter of at least 20cm (8in). The long-lasting flowers will create wonderful fresh and dried floral arrangements.

Sowing Instructions

Sow mid January to mid March. Sow seed on the surface of lightly firmed, moist seed compost in pots or trays. Cover seed with a very fine sprinkling of compost or vermiculite. Place in a propagator or seal container in a polythene bag and put in warm place. Keep at a temperature of around 15-20C (59-68F) for 3 months.

If germination does not occur by the end of this time, transfer container into a fridge (NOT freezer) at 5C (40F) for a further 3 months. Observe regularly while in the fridge and remove once seeds start to germinate. Repeat this cycle if germination does not occur to help break any seed dormancy.

Keep the surface of the compost moist but not waterlogged; germination can often be erratic taking from 30-365 days to emerge.

Growing Instructions

When seedlings are large enough to handle, transplant seedlings into 7.5cm (3in) pots or trays. Grow on in a cold frame and plant out the following spring, 30cm (12in) apart.