Sunflower Seeds - Maximillian (Perennial)

Sunflower – Maximilian (Helianthus maximiliani)

Tall, graceful, and glowing with soft yellow late-season blooms, the Maximilian Sunflower is a perennial favourite for both prairie-style gardens and pollinator-friendly plantings. Native to North America, this hardy sunflower brings life to the garden from late summer into fall, when most other flowers are fading. Its bright yellow, daisy-like blooms line the upright stems, creating a natural column of sunshine that can reach impressive heights.

Perfect for naturalized landscapes, borders, or the back of the garden, Maximilian Sunflowers attract bees, butterflies, and birds in abundance. Their towering stalks make excellent shelter for wildlife, while the seeds provide autumn and winter food for songbirds. With a carefree, drought-tolerant nature, this perennial thrives in a variety of soils and comes back stronger each year. For gardeners wanting to extend colour well into fall, this sunflower is a must-have.

• Attracts bees, butterflies, birds
• Deer resistant
• Drought tolerant
• Perennial; comes back year after year
• Suitable for cut flowers (bouquets)

Plant Details

• Scientific Name: Helianthus maximiliani
• Life Cycle: Perennial
• Light Requirements: Full sun
• Plant Height: 4–8 ft (1.2–2.4 m)
• Plant Spacing: 18–24 in (45–60 cm)
• Seed Depth: ¼ in (6 mm)
• Days to Germination: 10–21 days
• Bloom Time: Late summer to fall
• Hardiness Zones: 3–9

Growing Instructions

Direct sow outdoors after the danger of frost has passed, or start indoors 8–10 weeks before last frost. Plant in a sunny location with well-drained soil. Water regularly until established, then allow plants to thrive with minimal care. Thin seedlings to allow room for tall growth.

Seed Germination

For best results, sow seeds ¼ in (6 mm) deep and keep soil evenly moist until sprouts appear in 10–21 days. Germination is most successful when soil temperatures are between 18–24°C (65–75°F).

FAQ

Q: Do Maximilian Sunflowers need staking?
A: In most gardens, their strong stalks stand tall without staking, but in windy areas some support may be helpful.

Q: Are Maximilian Sunflowers invasive?
A: While vigorous, they spread by rhizomes rather than self-seeding heavily. Plant where they have room to naturalize.