|Diverse and versatile, Dahlias are prized for their large, often spectacularly-colored and shaped blooms. Flowers fall into 11 categories, including Anemone, Pompom, Decorative, Cactus, Peony, Waterlily and Star-shaped. They range from 2 to 3 inches to more than 7 or 8 inches across and come in most colors except blue. Dwarf, intermediate and tall plants range from 8 inches to 4½ feet tall. Easy to grow, they bloom best in full sun but tolerate some shade. Excellent cut flowers. Traditionally grown from tubers, some start from seed and are grown as short annuals. Plant tubers in early spring, and seed-grown plants, after late frost. For large flowers, plant in rich soil and give plenty of water. Pinch tall-growing plants at 4 to 6 inches to encourage branching and flowers. For larger flowers, do not pinch center stem, but remove buds from sideshoots. Except in Zones 10 to 11, dig up and store tubers in fall. Although relatively pest-free, they are susceptible to viruses, aphids, Japanese beetles, thrips, earwigs and nematodes. Healthy stock plants, good air circulation, and proper spacing greatly reduce problems.
Dahlia tubers are not cold hardy and must be dug up and stored for the winter, except in frost-free climates.
Attributes - Dahlia
Plant Type: Bulb
Bloom Season: Early Summer through Early Fall
Flower Color: Orange, Peach, Red, White, Yellow
Height: 3 ft. to 3 ft. 6 in.
Width: 2 ft.
Sunlight: Full Sun
Notes: Cut Flowers, Long Blooming, Showy Flowers. Susceptible to Aphids, Beetles, Spider Mites, Thrips.
Dahlia 'Ace of Hearts', Dahlia 'Arabian Night', Dahlia 'Bonne Esperance', Dahlia 'Chessy', Dahlia 'Christine', Dahlia 'Color Spectacle', Dahlia 'Deepest Yellow', Dahlia 'Doris Day', Dahlia 'Duet', Dahlia 'Edinburgh', Dahlia 'Figaro', Dahlia 'Gina Lombaert', Dahlia 'Glenbank Twinkle', Dahlia 'Glory of Noordwyk', Dahlia 'Good Earth', Dahlia 'Honey', Dahlia 'Lady Linda', Dahlia 'Lavender Perfection', Dahlia 'Patches', Dahlia 'Red Pygmy', Dahlia 'Tam Tam', Dahlia 'Trunket', Dahlia 'Unwin Dwarf', Dahlia 'Vuurvogel', Dahlia 'Yellow Bird'