Arrangement of Mexican Arcadian Sunflower blend in a clay pot on a white background.
Mexican Sunflower Seeds, Arcadian Blend
A close-up view of several of the Arcadian Blend Mexican Sunflowers on white background.
An overhead angle of Arcadian Blend Mexican Sunflowers that shows the mix&
A close-up macro view of Arcadian Blend Mexican Sunflowers.
Arcadian Blend Mexican Sunflowers arranged in an orange cup on white background.
A close-up look at Arcadian Blend Mexican Sunflowers.
Arcadian Blend Mexican Sunflowers arranged on a white background surrounded by petals.
Arcadian Blend Mexican Sunflowers in a bright yellow pitcher with an orange knife on a high key background.
Arrangement of Mexican Arcadian Sunflower blend in a clay pot on a white background.
Mexican Sunflower Seeds, Arcadian Blend
A close-up view of several of the Arcadian Blend Mexican Sunflowers on white background.
An overhead angle of Arcadian Blend Mexican Sunflowers that shows the mix&
A close-up macro view of Arcadian Blend Mexican Sunflowers.
Arcadian Blend Mexican Sunflowers arranged in an orange cup on white background.
A close-up look at Arcadian Blend Mexican Sunflowers.
Arcadian Blend Mexican Sunflowers arranged on a white background surrounded by petals.
Arcadian Blend Mexican Sunflowers in a bright yellow pitcher with an orange knife on a high key background.

Mexican Sunflower Seeds,
Arcadian Blend

3.98 ReviewsSKU: #FL759Min. seed count: 25
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Description

(Tithonia rotundifolia). Care-free wildflower tangerine, crimson and canary colored blooms. This is native from Mexico to South America and attracts tons of beneficial insects and pollinators. Well-branched plants stand 4-7 feet tall and are smothered in 3-inch blooms.

Growing Tips: The Mexican Arcadian Blend sunflower thrives best in full sun, requiring at least 6 hours of direct sunlight daily. The soil should be light, well-draining, and moderately fertile. Excessively nitrogen-rich soil will adversely affect blooming. Water regularly but avoid waterlogging. Applying mulch around the base helps to retain moisture and suppress weeds. Given their height, plants may need staking in windy areas to prevent damage.

Plant Details

Botanical Name
Tithonia rotundifolia
Life Cycle
Annual
Sun Requirement
8–12 hr.
Days to Germinate
7–14
Days to Maturity
98–100
Planting Depth
Lightly cover, as light is required for germination.
Plant Spacing
18–24 in.
Ideal Temperature
60–65°F
Frost Hardy
No

When to Grow

Plant your sunflowers in late spring, after all chance of frost has passed and the soil has warmed to at least 50 F. It's important to wait until all risk of frost is gone because sunflowers are highly frost-sensitive. If you’re not sure how to find your first and last frost dates, consult our blog post 'Our Experts Answer Questions, Share Resources.'

How to Sow and Plant

Sow seeds directly outdoors, as sunflowers dislike transplanting due to their long taproots. Plant seeds about 1/2 inch deep. Once seedlings are a few inches tall, thin them out to about 18-24 inches apart to provide enough space for each plant to grow. Keep the soil moist during germination but not soggy.

How to Grow

Mexican Arcadian Blend sunflowers require full sun and regular deep watering to promote strong root systems. Fertilize lightly to enhance growth, but be careful not to over-fertilize, which can lead to weaker stems. Support taller plants with stakes, especially in windy locations. These sunflowers bloom from summer into early fall and attract pollinators like bees and butterflies.

How to Save Seeds

  • When petals die back and heads begin to dry and turn brown, place a paper bag over the heads to protect seeds from birds.
  • After a few days, the heads will dry to a dark brown. Bring the heads indoors and hang them upside down in a dry area in direct sunlight for up to a week, shaking seeds free each day.
  • Store seeds in a cool, dark, dry place.

FAQ

When do Mexican Arcadian Blend sunflowers bloom?

The flowers bloom throughout the summer and can extend into early fall.

Do Mexican Arcadian Blend sunflowers need staking?

Yes, the well-branched plants stand 4 to 7 feet tall and may need staking in windy areas to prevent damage.

Are Mexican Arcadian Blend sunflowers drought-tolerant?

While the plants can handle brief periods of drought, regular watering will ensure the best growth and bloom production.

Browse our full range of sunflower seeds.

Customer reviews

3.9 / 5 8 Reviews

What gardeners are saying

  • Pollinator magnet: Bees, hummingbirds and monarchs flock to the blooms.

  • Far taller than listed: Plants often reach 6 to 15 feet, far more than listed.

  • Loads of blooms: Bushy plants with many side shoots flower all summer.

  • Heads up: Plant at the back with sturdy support; they shade neighbors.

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