Pristine White Perfection for Summer Elegance

Pre-order for dispatch end of February 2026.

The Dahlia 'Avalanche' is a truly breathtaking decorative variety, renowned for its massive, snow-white blooms that exude purity and sophistication. A favourite among florists and gardeners alike, this dahlia produces large, lush flower heads with broad, rounded petals that create a soft yet structural display. Whether you are planning a classic white garden or looking for the ultimate wedding flower, 'Avalanche' provides a timeless charm that lasts from mid-summer right through to the first frosts.

Vigorous and tall-growing, this variety is a "cut flower professional." Its long, sturdy stems hold the heavy blooms high above the fresh green foliage, making them perfect for creating spectacular indoor arrangements. Planted in the border, it acts as a luminous focal point, reflecting the moonlight on warm summer evenings. 'Avalanche' is a generous bloomer, rewarding you with more flowers the more you cut them.

SPECIFICATIONS

• Plant Type: Dahlia Tuber (Tender Perennial)

• Variety: Avalanche (Decorative Type)

• Hardiness: Tender - protect from frost

• Flower Colour: Pure White

• Flowering Period: July to October

• Sun Exposure: Full Sun

• Soil Type: Moist, Well-Drained, Fertile Soil

• Mature Height: Approx. 100cm – 120cm

• Mature Spread: Approx. 60cm

KEY FEATURES

• Produces magnificent large, pure white decorative blooms

• Excellent cut flower variety with strong, long stems

• Ideal for "Moon Gardens" and classic white themes

• Long flowering season from July until the first frosts

• Vigorous grower that adds height and structure to borders

WHAT YOU'LL RECEIVE

You will receive top-quality Dahlia Tubers (Grade 1), ready to be potted up in spring or planted directly after the risk of frost has passed.

GROWING TIP

To encourage a bushier plant with more flowering stems, "pinch out" the growing tip when the plant is about 20cm tall. As this is a tall variety, stake the plant early to support the heavy blooms against the wind. Deadhead regularly to ensure a continuous display.

PERFECT FOR

• Spectacular Cut Flower Arrangements

• Planting at the Back of a Border

• Wedding Floristry and White-Themed Gardens

• Adding Height and Drama to Flower Beds

• Large Patio Containers (with support)

GROWING CALENDAR

• Planting: Pot up indoors in March/April or plant out in May/June (after frost).

• Feeding: July to September (High potash feed).

• Flowering: July to October.

• Lifting/Protecting: November (lift tubers to store over winter).

At The Rose Press Garden, we are passionate about providing gardeners across the UK with top-quality, healthy plants and bulbs, delivered directly to your door. We carefully select each variety to ensure it thrives in your garden and brings you joy for years to come.

TRPG charges for delivery depending on the shipment locations and weight of items.

1st class P&P to UK is £5.95

2nd class P&P to UK is £4.50

P&P for heavy items such as plant support will be charged at £8