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Dahlia Yellow Happiness


dahlia 'Yellow Happiness'

Bright flowers in late summer through to autumn

A ray of sunshine through summer and into autumn when this lovely plant is covered in spiky flowers. Deep green leaves add texture to the front of a border through the growing season. A neat shape makes this variety ideal for a container on the patio.


Happy in sun or a partly shaded spot, away from cold winds. Great in a big container on the patio and a lovely flower for cutting.


Add well rotted manure or garden compost to the soil when planting. Give the stems some support from twigs or canes as they grow. Dahlias grow from a storage organ called a tuber. In mild regions they may be left in the ground year round and generously mulched in autumn. Otherwise lift before the frosts and store in a cool, dry, dark place until spring.

Plant details

In depth plant information

Property Value
Plant type Perennial herbaceous
Flower colour
Foliage colour
Typically available June - September
Season of interest Summer, Autumn
Flowering July - November
Evergreen No
Plant height 70 cm - 80 cm
Plant width 40 cm - 50 cm
Fragrant flowers No
Hazardous All parts highly toxic if eaten,Skin irritant
Attracts bees Yes
Attracts butterflies No
Plant height in 5 years 80 cm
Medicinal No
Hardiness zone (?) H3

Will perform best in these conditions

Property Value
Soil type Clay, Sand, Loam
Light exposure Full sun
Soil drainage Well drained, Moist
Planting instructions

Water the plant in its pot thoroughly before planting – give it a good soaking. Prepare the area by digging a hole twice the size of the pot. Dig compost into the base of the hole. Remove the pot and position the plant in the hole, with the top of the rootball about level with the surrounding soil. Refill the planting hole with a mixture of garden soil and compost, firming as you go. Water in well and keep well watered during the plant's first year.

Planting site Cottage garden, Flower border and beds, Patio container, City garden

Typically available

From June to September