A picture of a Garden Dahlias

Garden Dahlias

Dahlia spp.

FIDALGOBLACKY by en.wikipedia (CC-BY-SA-3.0)

Full Sun
Easy care
Moderate watering


USDA zone


Minimum temperature

Expected size








3 years to reach maturity


    • spring
    • summer
    • autumn
    • winter

    This plant has a mild fragrance

    More images of Garden Dahlias

    A photo of Garden Dahlias
    A photo of Garden Dahlias
    A photo of Garden Dahlias
    A photo of Garden Dahlias
    A photo of Garden Dahlias

    Garden Dahlias Overview

    The genus Dahlia contains many famous and rewarding summer bulbs that produce dazzling displays from summer to autumn. It contains around 38 species which have large tuberous root systems which produce bushy, herbaceous, bamboo-like stems. 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 Garden Dahlias

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

    How to harvest Garden Dahlias

    Harvest flowers during mid-summer months.

    How to propagate Garden Dahlias



    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).


    Special features of Garden Dahlias

    Attracts useful insects

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

    Attractive flowers

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

    Pot plant

    Can be grown in large containers.

    Other uses of Garden Dahlias

    Grown as bedding plants or for their flower heads, which are good for cutting or exhibition. Suitable for coastal conditions.

    Plants for Early Autumn

    A selection of colour for your garden that will last right up to the first frosts.

    Explore all

    Flowers to Sow or Plant Under Cover in March

    Sow these seeds and pot up these tubers to get an early start on the year.

    Explore all