Maximilian Sunflower

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Maximilian Sunflower is a wild prairie perennial with large 3-inch-wide bright-yellow flowers; as many as 15-30 flowers grow in a spiral pattern around one or more long stems around 4-6 feet tall! This Great Plains native provides food and shelter for birds, deer, and other wildlife and is attractive to bees and butterflies. A proven plant of the Heartlands, this sunflower can hold blooms for several weeks into the Fall, and is adaptive to sudden temperature changes and climates with low precipitation. Named after German explorer Prince Maximilian of Wied-Neuwied who encountered it during his voyage to North America in the 1830s. Deer Resistant.

Also Known As: Max Sunflower, Prairie Sunflower

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Plant Name:
Sunflower, Maximilian
Latin Name:
Helianthus maximiliani
Bloom Diameter: 2-4 inches
Plant Height: 3-10 feet
Days to Germinate: 10-20
Days to Bloom: 110
Germination Rate: 91%
Test Date: 2/22
Growth Habit: Upright
USDA Zones: 2-10
Lifespan: Perennial
Country of Origin: United States
Sunlight: Full Sun, Partial Shade
GMO: No
Pollination:
Heirloom, Open-Pollinated
Fungicide-Treated Seeds*: No
Seeds Packed For**: 2023

*Fungicide-treated seeds protect the seedlings from diseases until they are up and growing. Do not eat treated seeds.
**Seeds are freshly packed for the growing season of the year listed. Seeds are still viable beyond pack date. Store in a cool and dry location such as the refrigerator or basement to best preserve germination rates.


Planting Instructions:

Plant in Spring after all danger of frost has passed or late Fall in 1/2 inch deep in moist, well-draining soil in 65-70F soil. If starting seeds indoors, plant seeds in moist soil at a temperature of 65-70 degrees F until germination.  Keep seedlings moist and when weather has warmed, transplant outdoors. Maximilian Sunflower adapts well to clay, rocky, or shallow soil. For best results during Spring planting, cold stratification can help the seeds break dormancy and initiate germination. Mix the seed with moist sand and store it in the refrigerator for 30 days before direct sowing in the Spring. Plants growing in partial shade or moist soil may reach taller than usual heights and may need staking or support.

Spacing: 10 inches