Decorative Dahlias

Decorative Dahlias, Decorative Formal Dahlias, Decorative Informal Dahlias

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Dahlias are absolutely breathtaking flowers. Flowering for months, they inject color and drama wherever you grow them: in mixed borders in the garden, in containers or window boxes on balconies and on patios.

They are available in a rich variety of bloom colors, shapes and sizes. Flowers can be as small as 2 inches in diameter or up to one foot. They can be single-flowering (orchid-flowering, anemone and collarettes) or double flowering (cactus, semi-cactus, formal or informal decorative dahlias, ball and pompons). Their wide height range can start as low as 12 inches and go up to 6 feet.

Decorative Dalhlias are double dahlias with broad, flat-tipped petals that are sometimes wavy. The flowers are normally large and the plant size varies from 6-7 ft. giants (2 m) to compact bedding dahlias that grow only 15 in. high (38 cm). 

Decorative Dahlias can be formal with flat petals evenly and regularly placed throughout the flowers, or informal with generally flat petals, sometimes slightly rolled at the tips, but with irregular arrangement of formation.

All these Decorative Dahlias are knockouts. If grown for the vase, choose the formal decorative varieties with their perfectly packed blooms. The informal decorative dahlias will look terrific in your borders or containers.

There are hundreds of formal and informal Decorative Dahlias (!!!). Here is the list of our favorite Decorative Dahlias.


While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.

Guide Information

Hardiness 8 – 11  
Heat Zones 1 – 10
Climate Zones 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 20, 22, 23, 24
Plant TypeBulbs, Perennials
Plant FamilyDahlias
ExposureFull Sun
Season of Interest Summer (Early, Mid, Late)
Fall
Water NeedsAverage
MaintenanceAverage
Soil TypeClay, Loam, Sand
Soil PhAcid, Alkaline, Neutral
Soil DrainageMoist but Well-Drained
CharacteristicsCut Flowers, Showy
AttractsButterflies
Landscaping Ideas Beds and Borders, Patio and Containers
Garden Styles City and Courtyard, Cutting Garden, Informal and Cottage

Compare All Dahlias

Great Plant Combination Ideas with Dahlias

Guides with Dahlias


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