Scientific Name
Dahlia

Common Name
Dahlia
Geophyte Organ: Tuberous roots

[Double Form]
Light Requirements: Full-AM Sun
Height: 12-96 inches (30-240 cm)
Flowering Season: Summer/Fall
Flower Color: Most colors
Planting Time: Spring
Planting Depth: Cover 3 inches (7.5 cm)
Spacing Between Roots: 12-36 inches (30-90 cm)
Hardiness: Tender III - injured below 25°F (2°C) 
Bulb Storage: Harvest tuberous roots in fall, dry carefully (do not wash), and store in vermiculite or dry sand at 35-45°F (2-7°C)
Comments:  May suffer during summer heat; prefers a well-drained soil; numerous cultivars; Refer to HIL 8500
Cultivars: --
   
  USDA Hardiness Zones
2 3 4 5 6 7 8 9 10 11
- - Sp/C Sp/C Sp/C Sp/C C/M H H H
C=container; H=hardy; M=hardy with mulch; Sp=plant spring, harvest fall; F=fall plant

 

List by Scientific Name | List by Common Name


Prepared by: Erv Evans, Consumer Horticulturist, A. A. De Hertogh, Professor, Department of Horticultural Science

Web Design by: Christa Johnson

© 2000-2003 NC State University
Images © by Erv Evans, A. A. De Hertogh

   
[Cactus form]                       [Semi-double form]