Chrysanthemum, Garden Mum, Florist's Mum 'Golden Helga'

Chrysanthemumx grandiflorum

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Chrysanthemum (kris-AN-the-mum)
Species
x grandiflorum (gran-dih-FLOR-um)
Synonym
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
12-18 in. (30-45 cm)
Spacing
24-36 in. (60-90 cm)
Hardiness
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Danger
N/A
Bloom Color
Bright Yellow
Bloom Time
Late Summer/Early Fall
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Can be grown as an annual
Bloom Characteristics
Flowers are good for cutting
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Patented
Propagation Methods
By dividing the rootball
From herbaceous stem cuttings
By simple layering
By air layering
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Norristown, Pennsylvania

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Gardener's Notes:

1
positive
0
neutral
0
negative
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Norristown, PA (Zone 6b) | November 2009 | positive

This plant is very hardy and returns reliably. It will bloom in July and if cut back will bloom again in October.

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