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Guaranteed to Grow
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Maximilian Sunflower

Quick Facts:

  • Native perennial wildflower
  • Found along roadsides across the USA
  • Popular prairie and range plant
  • Favored by cattle & other livestock
  • Supports bees and other pollinators

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Quantity: Packet (250 Seeds)

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We ship to all areas of North America including the United States, its territories and outlying islands, and Canada. International orders may incur an additional charge to cover the handling of customs paperwork. Returns are accepted within 30 days of receipt. Full warranty information can be found here.

Maximilian Sunflower

More about Maximilan Sunflower

Helianthus maximiliani

Maximilian sunflower is a native perennial wildflower that is commonly found in prairies and roadsides all across the United States.  Named after German naturalist Prince Maximilian of Wied-Neuwied, who led an expedition of the American West in 1832, the Maximilian sunflower grows 4 to 9 feet tall, producing showy clusters of 2 to 3-inch, yellow flowers all along the main stem.  Maximilian sunflower is a popular range plant for use in pasture mixes as the plants are favored by cattle and provide an important food source during droughts and dry spells.  Likewise, the late-blooming, cheerful yellow flowers are an important source of nectar for bees and other pollinators during the summer dearth.  L... More

Less

Helianthus maximiliani

Maximilian sunflower is a native perennial wildflower that is commonly found in prairies and roadsides all across the United States.  Named after German naturalist Prince Maximilian of Wied-Neuwied, who led an expedition of the American West in 1832, the Maximilian sunflower grows 4 to 9 feet tall, producing showy clusters of 2 to 3-inch, yellow flowers all along the main stem.  Maximilian sunflower is a popular range plant for use in pasture mixes as the plants are favored by cattle and provide an important food source during droughts and dry spells.  Likewise, the late-blooming, cheerful yellow flowers are an important source of nectar for bees and other pollinators during the summer dearth.  Like other sunflowers, this species can spread through seed, however it is mainly propagated through rhizomes, leading to the formation of colonies.  Pull plants in the fall if spreading is not desired.  Blooms late summer through fall.  Makes an excellent cut flower.  Each packet contains a minimum of 250 seeds.

Helianthus maximiliani

Maximilian sunflower is a native perennial wildflower that is commonly found in prairies and roadsides all across the United States.  Named after German naturalist Prince Maximilian of Wied-Neuwied, who led an expedition of the American West in 1832, the Maximilian sunflower grows 4 to 9 feet tall, producing showy clusters of 2 to 3-inch, yellow flowers all along the main stem.  Maximilian sunflower is a popular range plant for use in pasture mixes as... read more

read less

Helianthus maximiliani

Maximilian sunflower is a native perennial wildflower that is commonly found in prairies and roadsides all across the United States.  Named after German naturalist Prince Maximilian of Wied-Neuwied, who led an expedition of the American West in 1832, the Maximilian sunflower grows 4 to 9 feet tall, producing showy clusters of 2 to 3-inch, yellow flowers all along the main stem.  Maximilian sunflower is a popular range plant for use in pasture mixes as the plants are favored by cattle and provide an important food source during droughts and dry spells.  Likewise, the late-blooming, cheerful yellow flowers are an important source of nectar for bees and other pollinators during the summer dearth.  Like other sunflowers, this species can spread through seed, however it is mainly propagated through rhizomes, leading to the formation of colonies.  Pull plants in the fall if spreading is not desired.  Blooms late summer through fall.  Makes an excellent cut flower.  Each packet contains a minimum of 250 seeds.

Little Girl planting seeds
Little girl planting seeds

How to Grow Sunflowers

Sunflowers are widely adapted to a variety of climates and are especially tolerant of cold temperatures.  Sunflowers will flourish in a wide variety of soil types, from clay to sandy, so long as sufficient nitrogen is available throughout the growing season.  The water requirements of sunflowers are similar to those of other field crops.  Plants should be irrigated if drought occurs within 20 days of pollination as this period is especially critical for seed development.

After danger of frost has passed, sow seeds 6" apart, 1/2" deep in rows 36" apart.  Germination will occur in 6-10 days.  Thin to one plant every 24" once seedlings have reached six inches tall. Can also be started indoors 4 weeks before the average last frost date.

Transplant outdoors after danger of frost has passed.  Plants should be spaced 18-24" apart to provide for ample air flow.

Sunflowers are susceptible to a number of common diseases including verticillium wilt, mildew, leaf spot, and rust.  However, the extent of these diseases is usually not of consequence to the home gardener.  Ensuring adequate airflow by thinning plants to the recommended spacing will reduce the incidence of disease and cultural practices such as crop rotation, tillage and removal of plant debris in the fall will limit its spread.

Sunflowers make great cut flowers. They are long-lasting and have a bright, cheerful appearance that adds a cheerful touch to any bouquet or arrangement. Sunflowers are also easy to care for, and can last up to a week when cut and placed in a vase with fresh water. When harvesting fresh cut flowers, cut the main head just before it blooms to encourage additional blooms on side shoots. Harvesting flowers in the morning will prevent premature wilting.

CONSIDERATIONS:

Sunflowers are outbreeding plants, relying on bees and other insects for their pollination. Varieties may be self-compatible or self-incompatible, meaning that pollen must be moved from one plant to another. Plants of different varieties must be isolated by 1/2 to 3 miles, depending on the population size and insects in the area, to maintain varietal purity. Hand pollination can be performed by bagging heads and rubbing the flowers of adjacent plants together each day for 10 consecutive days. Heads should be re-bagged after pollination to prevent pollen contamination and predation by birds.

HARVESTING SEED:

SEED LONGETIVITY:

Sunflower seeds can remain viable for up to five years if stored in a cool, dry place.

Arikara Sunflower

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