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A picture of a Dahlia 'Happy Single Series'

Dahlia 'Happy Single Series'

Dahlia (Happy Single Series) (1: Sin Group)

Also known as

Dahlia 'HS' Series

Photo by pug3 (All rights reserved)

Full Sun
Moderate care
Moderate watering


RHS hardiness


Minimum temperature

Expected size








6 months to reach maturity


  • spring
  • summer
  • autumn
  • winter

More images of Dahlia 'Happy Single Series'

A photo of Dahlia 'Happy Single Series'
A photo of Dahlia 'Happy Single Series'
A photo of Dahlia 'Happy Single Series'
A photo of Dahlia 'Happy Single Series'
A photo of Dahlia 'Happy Single Series'

Dahlia 'Happy Single Series' Overview

Dahlia 'Happy Single Series' varieties have very dark foliage in an almost black shade, making the brightly coloured blooms stand out beautifully with their bright golden yellow centres. They are well loved by bees and butterflies and can be planted up in borders as well as containers and pots. Regular watering and cutting flowers from this plant will improve performance. These plants have a dwarf growing habit; however, pinching out the growing tips in early summer will help it develop a bushier plant. The genus Dahlia contains around 20,000 cultivars are predominantly derived from D. pinnata and D. coccinea. Most Dahlias are divided into groups based on the form of their flower heads, from dwarf varieties to tall bushes and even tree specimens.

Common problems with Dahlia 'Happy Single Series'

Dahlia tend to be affected by fungal diseases such as powdery mildew or grey mould if planted in poorly draining soil.

How to harvest Dahlia 'Happy Single Series'

Flowers can be cut for floral arrangements as required.

How to propagate Dahlia 'Happy Single Series'


In spring take soft-wood cuttings from the shoots appearing from stored tubers.


Lifted clumps of Dahlia's can be divided in late winter, ensuring each section has an 'eye' (growing tip).


In early spring, sow seeds 0.5 cm deep into trays of pre-soaked compost. Place the tray in a sunny, warm position, keeping the temperature between 15 - 20 C. Seedlings should appear between 14 to 28 days. When large enough, prick out and replant 5 cm apart. Grow these on in slightly cooler conditions and acclimatise young plants ready to be planted out 30 cm apart as soon as the last frost has passed.

Special features of Dahlia 'Happy Single Series'

Attractive flowers

Brings colour to the garden during autumn months. Flowers range from red, orange, yellow, violet, white, to pink.

Attracts useful insects

It attracts beneficial pollinators such as butterflies, bees and moths.

Pot plant

Can be grown in large containers.

Other uses of Dahlia 'Happy Single Series'

Suits beds & borders of formal or informal gardens. It can also be grown for cut flowers on allotments or veg gardens. Equally happy in containers.