Summer of Sunflowers Seed Collection (Organic)

Bring a burst of sunshine to your garden with this joyful collection of Helianthus annuus . The Summer of Sunflowers Seed Collection features three organic varieties—Mammoth, Goldy Double, and Autumn Beauty blend—chosen for their vibrant color palette, varied heights, and long-lasting seasonal display. Whether you’re creating a dedicated sunflower patch, adding cheerful accents to borders, or gifting a garden experience to a friend, this curated set offers everything you need to grow a radiant summer showcase. Thoughtfully packaged in a recyclable craft box with a helpful growing guide, it’s an inspiring way to celebrate the beauty and resilience of sunflowers.

Mix Details

• Botanical name: Helianthus annuus
• Plant type: Annual
• Growth habit: Upright
• Crop category: Flower seed
• Flower character: Bring a burst of sunshine to your garden with this joyful collection of Helianthus annuus.
• Product format: Seed packet

Sowing & Growing

• Light: Full Sun
• Planting season: Spring
• Starting location: Direct Sow
• Recorded soil pH: 6.0 - 6.8

Prepare a weed-reduced seedbed for Summer of Sunflowers Seed Collection (Organic) and use the recorded planting season, depth, and light requirements. Press shallow-sown seed into good soil contact and keep the seed zone from drying during establishment. Thin or transplant only when the growth habit and spacing call for it. Leave enough room for mature width and air movement. Bloom timing and final height can shift with sowing date, climate, soil, moisture, and competition, so use listed figures as planning ranges.

Young sunflower plants exhibit a behavior called “heliotropism,” turning their heads to follow the sun from east to west during the day.

This helps them maximize light absorption for stronger growth.

As the plants mature, the flower heads typically fix themselves facing east—warming more quickly in the morning and making their nectar even more appealing to pollinators.

If you’re curious to learn more, our How to Grow Organic Sunflowers blog post explores this topic in greater detail with helpful growing tips.

Because this packet contains a mix, component proportions and the number of varieties visible in a small planting will vary. Emergence, growth rate, mature size, color, and harvest or bloom timing can also differ among components and with site conditions. Evaluate the planting across the full season rather than assuming the first seedlings, flowers, or harvest represent the entire mix.

Explore related options in our Flower Seeds.