Dahlia (Dahlia hybrida)

Dahlia
Scientific Name: Dahlia hybrida
Family: Asteraceae

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Dahlia 'Bishop of LLandaff' in New York Botanical Garden Recommended Temperature Zone:
sunset: All zones
USDA: All zones

Frost Tolerance: Semi-tender in Phoenix, new growth is frost sensitive and the plants does better in a protected area, or with frost protection on the coldest nights
Heat Tolerance: Afternoon shade needed in Phoenix
Sun Exposure: Full sun to light shade
Origin: Mexico and Guatemala
Growth Habits: Perennial, up to 5 feet tall depending on variety
Watering Needs: Regular to abundant water, with good drainage.
Propagation: Division, seeds

Although not commonly seen in the Phoenix area, Dahlias grow here. They need a fair amount of water, and they will be smaller than in a more humid climate, but they can still be enjoyable. Actually, a fair number of animals seem to find them enjoyable, particularly slugs. Protect the young shoots.

Cultural Practices:
Beware of slugs and snails!

Propagation:
Sow seeds at 60°F (16°C), they take a week to germinate. Plant 8 week old seedlings 1 foot apart (30 cm), after the soil has warmed up. Feed regularly with liquid fertilizer.

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