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Maximillian Sunflower, Prairie Sunflower 'Dakota Sunshine'

Helianthus maximilianii

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Helianthus (hee-lee-AN-thus) (Info)
Species: maximilianii (maks-ih-mill-ee-ANE-ee-eye) (Info)
Cultivar: Dakota Sunshine



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Where to Grow:

Unknown - Tell us


4-6 ft. (1.2-1.8 m)


24-36 in. (60-90 cm)

36-48 in. (90-120 cm)


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)

Sun Exposure:

Full Sun


Unknown - Tell us

Bloom Color:

Gold (Yellow-Orange)

Bloom Time:

Mid Summer

Late Summer/Early Fall


Grown for foliage


This plant is resistant to deer

Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:


Propagation Methods:

By dividing the rootball

From herbaceous stem cuttings

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed


This plant has been said to grow in the following regions:

Andover, Connecticut

Iowa City, Iowa

Kinnear, Wyoming

Pavillion, Wyoming

Riverton, Wyoming

Gardeners' Notes:


On Apr 29, 2012, vorlonken from Andover, CT wrote:

This plant became a menace in my zone 5 garden after just two years. I had it growing in full sun but the plant still flopped over before it bloomed. It did produce large numbers of blooms, but they were laying on the ground and since they're a good 6' to 8' tall they covered other things. It spread too quickly, easily doubling the size of the clump each year.

I just moved part of it to a location where I don't care if it spreads; the rest I sprayed with Roundup. If you plant it in your garden be prepared for it to be quite a bully when it comes to space.