Overview

Dahlia 'Arabian Night' is a bushy, clump-forming tuberous perennial in the genus Dahlia, part of the Asteraceae family, with green foliage. Dahlia 'Arabian Night' grows best in full sun, and tolerates well-drained soils and 6.0-7.5 pH. Its UK hardiness is rated H4. Suggested uses include borders, containers and cut flowers.

About

The horticultural cultivation of the dahlia plant has resulted in over 57,000 registered cultivars of dahlia. Several of them are listed below.

Wikipedia contributors, CC BY-SA 4.0List of Dahlia cultivars

About the genus

Dahlias come from the high meadows of Mexico, and somewhere in that heritage is the explanation for how they behave here: tender to frost, hungry, generous beyond all reason. No other plant gives you quite so much for so little. One tuber, planted after the last frost, becomes a shrub's worth of flowers by August — and the more you cut, the more they come.The range is faintly ridiculous. Tight pompoms, spiky cactus types, singles the bees adore, dinner-plates the size of your face. Whatever your garden's mood, there is a dahlia that agrees with it, which is probably why every generation falls out of love with them and then, a decade later, falls straight back in.They're at their best when much of the garden is winding down — late summer into autumn, flowering hard until the first frost calls time. I think of them as the encore. And they always play it.

Written by Henry

Growing conditions

Best soil and position for Dahlia

Sunlight
full sun
Soil type
well-drained
Soil pH
6.0-7.5
Soil moisture
moist
Aspect
South-facing
Exposure
Sheltered
UK hardiness
H4

Plant details

Dahlia 'Arabian Night' size, habit and characteristics

Plant type
tuberous perennial
Habit
Bushy, Clump-forming
Foliage
Green
Suggested uses
borders, containers, cut flowers

Care notes

Pruning and caring for Dahlia 'Arabian Night'

Cultivation
Plant tubers in spring after frost risk; water regularly; stake tall varieties
Pruning
Deadhead spent flowers to encourage blooming
Propagation
tuber division, cuttings
Pest resistance
Generally pest-free
Disease resistance
Generally disease-free

Frequently asked questions

How do I grow Dahlia 'Arabian Night'?

Plant tubers in spring after frost risk; water regularly; stake tall varieties.

Where is the best place to plant Dahlia 'Arabian Night'?

Dahlia 'Arabian Night' prefers full sun. It suits sheltered positions.

What soil does Dahlia 'Arabian Night' need?

Dahlia 'Arabian Night' grows best in well-drained soil. It prefers 6.0-7.5 soil. Aim for soil that stays moist.

How do I prune Dahlia 'Arabian Night'?

Deadhead spent flowers to encourage blooming.

Is Dahlia 'Arabian Night' hardy in the UK?

Dahlia 'Arabian Night' has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.

How do I propagate Dahlia 'Arabian Night'?

Tuber division, cuttings.

More in the Dahlia genus

Browse all Dahlia