Helianthus maximiliani Dakota Sunshine

Dakota Sunshine Maximilian's Sunflower

Exclusive. Dakota Sunshine is an August blooming selection of the native Maximilian's Sunflower. Chosen from South Dakota collected seed, this cultivar is especially useful in short season climates to avoid flower damage from early frosts. Drought resistant/drought tolerant plant (xeric). A High Country Gardens introduction.
Zones3 - 8
Advantages
Native
Light Requirements
Full Sun
Annual Rainfall
10 to 20"
Mature Height5-6' tall (60-72" tall)
Mature Spread36-60" wide
Bloom TimeLate summer to fall
ShippingNo longer available this season. Learn More…
SizeNo
SKUHC017336

USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

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Out of stock
SKU
HC017336
Details

5-6' tall x 3-5' wide (cutting propagated). Gardeners in cold, short growing season areas can now enjoy the spectacular beauty of Maximilian's Sunflower. High Country Gardens, working with Scott and Lauren Springer Ogden is introducing this newly selected, early blooming cultivar of Maximilian's Sunflower, 'Dakota Sunshine' While most Maximilian Sunflowers begin blooming in mid-September through early October, 'Dakota Sunshine' comes into flower in mid-August and avoids the hard, early frost common to short season climates. Adaptable to growing in any soil (including clay), this perennial sunflower is a big, easy-to-grow native prairie plant that is perfect for planting in hedges and in front of blank fences and walls where its ornamental foliage will add interest and texture to the landscape. Cut back old stems to 2-3" above ground-level in mid-spring. 

More Information
Associated SKUsHC017336
Common Name
Dakota Sunshine Maximilian's Sunflower
Botanical Name
Helianthus maximiliani Dakota Sunshine
Zones
3, 4, 5, 6, 7, 8
Light Requirements
Full Sun
Flower Color
Yellow
Mature Height
5-6' tall (60-72" tall)
Mature Spread
36-60" wide
Bloom Time
Late summer to fall
Ships As
Potted Plant
Soil Type
Sandy Soil, Clay Soil, Average Soil
Soil Moisture
Drought Resistant / Waterwise
Amount Of Rain
10 to 20"
Advantages
Native
Ideal Region
Anywhere In The US, Suitable Above 7000 ft
Planting Time
Spring / Summer, Fall
Native To
North America
Ships To Canada
No
Planting Guides

Tips On Growing Helianthus (Sunflower)

Helianthus (Sunflower) are showy late summer/early fall blooming native wildflowers that are deer and rabbit resistant. There are both annual and perennials sunflower varieties.

Preferred growing conditions:

  • Both annual and perennial Sunflower varieties grow easily in all types of soil including clay.
  • Plant in full, hot sun.
  • Sunflowers do not need to be mulched, but when planted in a garden with other plants that are mulched, they amenable to most common types of mulch including crushed gravel in xeriscapes.
  • Perennials like Helianthus maximiliana and its hybrids are xeric (waterwise). After becoming well established by their second growing season they do best with deep but infrequent watering. Too much water makes them tall and floppy; it’s best to grow them on the dry side.
  • Annual types need regular irrigation when there has been no rain.
  • Perennial types just need a few handfuls of compost and Yum Yum Mix in the planting hole to get them off to a good start.
  • Annual types benefit from more extensive soil preparation and will grow more vigorously when the soil has rototilled or dug to a depth of 8 to 12 inches and enriched with ample compost and Yum Yum Mix.

Special comments:

  • Undaunted® Lemon Max hybrid perennial sunflower sets a lot of seed. If re-seeding is not desirable, it should be deadheaded shortly after blooming has finished to reduce the number of volunteer seedlings.
  • Maximilian sunflower varieties are very vigorous growers that spread via underground roots. They should not be planted in flower beds with good soil as they will crowd out their neighbors; they are best planted in poor soil sites along fences, empty walls and other peripheral areas where their large size is an advantage.
  • Sunflower seeds are a favorite food of many songbirds, so don't deadhead the plants after blooming.

Garden Care:

  • Leave perennial plants standing over the winter and cut them back hard to a height of 1-2" in early to mid-spring.
  • Perennial varieties are easily divided in the spring to propagate additional plants or keep them in bounds if they grow too wide.
  • The seed of annual varieties should be planted when the soil begins to warm up in late spring. Sow seeds at the same time when planting corn in your area.

View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.
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