Product specifications and features

Product Description

Dahlia Decorative Arabian Night

Dahlia Decorative 'Arabian Night' Bulb Dahlia 'Arabian Night' is a breathtaking, deep burgundy dahlia variety that brings elegance and sophistication to any garden setting. Known for its rich, velvety blooms and dramatic colour, this dahlia adds a touch of luxury to borders, beds, and containers. Flowering prolifically from midsummer until the first frost, Dahlia 'Arabian Night' is ideal for creating moody, atmospheric displays and pairs beautifully with lighter-toned flowers. Its dark, romantic blooms make it a favourite for cut flower arrangements, adding a sense of drama and depth indoors. This easy-to-grow dahlia thrives in UK gardens with proper care, offering a reliable and stunning display throughout the season.
The blooms of Dahlia 'Arabian Night' are a striking, deep burgundy with hints of black, creating a luxurious and velvety appearance. Each fully double flower has slightly cupped, densely packed petals that form a rounded, full shape, measuring up to 10-15cm in diameter. The rich, dark colour stands out beautifully against green foliage, bringing an elegant contrast to brighter summer blooms and adding depth to any planting scheme. These flowers are as durable as they are beautiful, making them perfect for both garden displays and indoor arrangements.
How to Grow
Planting: Plant 'Arabian Night' dahlia tubers in spring, after the last frost, in a sunny location with well-drained, fertile soil. Position the tubers about 10-15cm deep, with the “eye” or growth point facing upwards, and space them 45-60cm apart to allow plenty of room for growth.
Watering: Water the tubers thoroughly after planting to help them establish. Once shoots appear, keep the soil consistently moist but not waterlogged. During dry spells, water deeply once or twice a week to encourage healthy growth and plentiful blooms.
Feeding: Feed with a high-potassium fertiliser, such as tomato feed, every two weeks from the start of flowering. This will promote vibrant, long-lasting blooms and support the plant throughout the flowering season.
Staking: 'Arabian Night' produces large, heavy blooms that may benefit from staking, particularly in windy locations. Insert stakes at planting time to avoid disturbing the tubers later, and tie the stems loosely to the stakes for support as they grow.
Deadheading and Maintenance: Regularly deadhead spent blooms to encourage continuous flowering and a neat appearance. After the first frost, cut back the foliage, and either lift and store the tubers or apply a layer of mulch if leaving them in the ground over winter.
Overwintering: In colder UK regions, lift and store the tubers after the first frost. Allow them to dry, then store them in a cool, frost-free location in slightly damp compost until replanting in spring. In milder areas, a layer of mulch over the planting site can provide adequate winter protection if you prefer to leave the tubers in the ground.
With its dark, velvety blooms and long flowering period, Dahlia 'Arabian Night' adds sophistication and depth to UK gardens, creating a dramatic display from summer through autumn. This dahlia is a perfect choice for both garden enjoyment and indoor floral arrangements, providing a sense of luxury and timeless beauty.
Pack contains 1 bulb

Specs & Details

Established height
90-120cm
Established spread
30-60cm
Plant spacing
6 bulbs per m²
Flower colour
Red
Life cycle
Annual
Habit
Bushy

Features

  • Thrives Full Sun

Plant Calendar

 

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Plant

 
 
 
 
 
 
 
 
 
 
 
 
From March To April

Harvest

 
 
 
 
 
 
 
 
 
 
 
 
From April To May

FAQs

Please read our FAQs page to find out more.

When can I plant dahlia tubers in the UK?

Dahlia tubers can be started indoors in spring, then planted outside once the risk of frost has passed. In most parts of the UK this is usually from late May, while colder areas may need to wait until early June. If you are searching for dahlia tubers ready to plant, they can also be planted directly into the ground from mid to late April, although growth will be slower until the weather warms up. Dahlias are tender plants, so new shoots must be protected from frost.

Why have my dahlia tubers not sprouted or grown?

Dahlia tubers can be slow to sprout, particularly in cool conditions. They need warmth, good light and only lightly moist compost while they are starting into growth. Cold, wet compost is one of the most common reasons a dahlia tuber fails, as overwatering can quickly cause rot before shoots appear. Check that the old stem or growing point is facing upwards and sits just below the compost surface. Some tubers take longer than others, so give them time before assuming they will not grow.

Are dry or broken dahlia tubers still okay to plant?

Dahlia tubers can look wrinkled or slightly dry while dormant, particularly after delivery. They can still grow if they remain firm and are attached to a section containing a viable growing point, often known as the crown or old stem area. A tuber that has broken away without any crown tissue is unlikely to produce shoots on its own. Do not plant tubers that are soft, wet, badly mouldy or hollow, as these are signs of rot or serious deterioration.

Will my dahlias flower in the colour shown on the product page?

Dahlia tubers should produce flowers in the colour and form described on the product page. Natural flowers can look slightly different in shade depending on sunlight, weather and soil conditions, while product images can also appear brighter or darker across different screens. Dahlias flower from summer into autumn, often continuing until the first frosts. A sunny position, regular watering during dry weather and removing faded blooms will help plants produce the strongest display.

Are dahlias hardy, and will they come back next year?

Dahlias are not fully hardy in most of the UK and will not tolerate frost. After the first frost has blackened the foliage, cut the stems back and lift the tubers to store somewhere dry and frost-free over winter. They can then be replanted the following spring. In very mild areas, some gardeners leave tubers in the ground under a thick mulch, but lifting them is the safer option, particularly in colder or wetter areas.

Didn’t find your answer?

Don't hestitate to contact us