California Giants Zinnia Seeds (Organic)

California Giants Zinnia is a vibrant, easy-to-grow variety known for its large, double blooms in an array of bold colors, including red, pink, orange, yellow, and white. These fast-growing annuals reach up to 3 feet tall, making them suited for adding height and color to flower beds, borders, and cutting gardens. Thriving in full sun and well-draining soil, California Giants bloom prolifically from summer to frost, attracting bees and butterflies to your garden. With their vivid hues, reliable growth, and pollinator appeal, California Giants Zinnias are a useful addition to many gardens.

Variety Details

• Botanical name: Zinnia elegans
• Plant type: Annual
• Growth habit: Upright
• Crop category: Flower seed
• Flower character: California Giants Zinnia is a vibrant, easy-to-grow variety known for its large, double blooms in an array of bold colors, including red, pink, orange, yellow, and white.
• Recorded feature: Open-Pollinated
• Product format: Seed packet with a separately listed bulk option

Sowing & Growing

• USDA Zone: 3-10
• Plant In: Spring
• Planting Depth: 1/4"
• Days to Germinate: 7-15 Days
• Height At Maturity: 4'-5'
• Sun/Shade Requirements: Full Sun
• Water Needs: Moderate Water

Prepare a weed-reduced seedbed for California Giants Zinnia 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.

With their vivid hues, reliable growth, and pollinator appeal, California Giants Zinnias are a useful addition to many gardens.

Mix that contains Cherry, Orange, Pink, Purple, Scarlet, Yellow and White.

These flowers are very large and can become 4-5 in. double flowers.

Place California Giants Zinnia where its recorded height and growth habit fit the surrounding planting. Shorter companions can be positioned toward bed edges, while taller stems need room where they will not shade small seedlings too early. If cutting flowers, harvest with clean tools at the stage appropriate to the bloom form. If leaving flowers in place, observe how bloom sequence changes through the season and record which sowing date performed best at the site.

Use a dated label for California Giants Zinnia and compare actual emergence, growth, and harvest or bloom timing with the ranges in the current record. Local soil, temperature, light, moisture, and planting date can shift results. Keep observations with the remaining packet so the next sowing can be adjusted without replacing product-specific measurements with a universal calendar.

Explore related options in our Flower Seeds.