Allium hollandicum 39;Purple Sensation 39; Part of the Alan Titchmarsh Collection 12 bulbs

 Huge, purple spheres-on-sticks that stand out in Chelsea Flower Show gardens each year. Allium 'Purple Sensation' look tricky to grow, but they are really easy. Height: 90cm (35"). Spread: 15cm (6").Useful links:How to grow bulbs, corms and tubers 

Allium hollandicum 39;Purple Sensation 39; Part of the Alan Titchmarsh Collection 24 bulbs

 Huge, purple spheres-on-sticks that stand out in Chelsea Flower Show gardens each year. Allium 'Purple Sensation' look tricky to grow, but they are really easy. Height: 90cm (35"). Spread: 15cm (6").Useful links:How to grow bulbs, corms and tubers 

Allium giganteum 1 packet (10 seeds)

One of the tallest of the allium species, the spectacular ball-shaped blooms are made up of masses of tiny bright purple flowers and have a diameter of at least 20cm (8"). The airy spheres of bloom are followed by architectural seedheads that create a spectacular autumn display. Undemanding and easy to grow, these magnificent, long lasting allium flowers are also excellent for cutting. Height: 120cm (48"). Spread: 15cm (6").Useful links:How to grow bulbs, corms and tubers 

Allium Collection 100 bulb mix

Upright stems add a strong vertical accent to cottage garden borders. These magnificent allium bulbs produce an explosion of colour, followed by architectural seedheads that create a spectacular autumn display. Undemanding and easy to grow, these magnificent allium flowers are also excellent for cutting. Allium ostrowskianum (25 bulbs) - Bright pink, bell-shaped flowers in early summer. Height: 20cm (8"). Spread: 5cm (2"). Allium moly (30 bulbs) - A vigorous little allium with golden yellow flowers that is ideal for naturalising in informal planting schemes. Height: 15cm (6") Spread: 5cm (2"). Allium sphaerocephalon (25 bulbs) - An understated allium with unusual oval shaped, purple green flower heads, that associates beautifully with swaying grasses. Height: 60cm (24"). Spread: 8cm (3").Allium caeruleum (15 bulbs) - Bright blue globes of starry flowers are carried on stiff upright stems. Height: 60cm (24"). Spread: 8cm (3").Allium ‘Purple Sensation’ (5 bulbs) - Globes of starry purple flowers that measure up to 8cm (3") across. Height: 90cm (36"). Spread: 10cm (4").Useful links:How to grow bulbs, corms and tubers