- Variety Info
- Sowing Info
- Growing Info
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Variety Info
Family: Asteraceae
Type: Zinnia (Learn more)
Native: Mexico
Hardiness: Annual
Exposure: Full sun
Bloom Period: Summer to frost
Plant Dimensions: 24"–48" tall
Variety Info: Large, 4"–6" flowers in red, pink, purple, and white.
Attributes: Attracts Pollinators, Cut Flower, Deer Resistant, Good for Containers, Heat Tolerant, Edible Flower, Frost Sensitive
Sowing Info
When to Sow Outside: RECOMMENDED. 1 to 2 weeks after your average last frost date.
When to Start Inside: 4 to 6 weeks before your average last frost date. Transplant outdoors after last frost. Zinnias do not benefit from being sown early; wait for warmer weather
Days to Emerge: 3–10 days
Seed Depth: ¼"
Seed Spacing: A group of 3 seeds every 12"
Thinning: When 2" tall, thin to 1 every 12"
Your hardiness zone is
Growing Info
Harvesting: For longest vase life, harvest before small yellow flowers emerge between petals. Change vase water often.
- NancyRated 5 out of 5 stars9/24/25California Giants
This is my first year growing these. They are stunning.
The colors are so vibrant on long strong stems. No diseases on these at all. My neighbors saw them from the street and had to come up and see them. Thank you for offering such healthy beautiful seeds. Looking forward to next year’s bounty.
Which best describes you as a gardener? ExpertBIBotanical Interests9/24/25Hey Nancy,
What a fantastic review! We're absolutely thrilled to hear that your California Giants Blend Zinnias have been such stunning showstoppers in your first year growing them - what a perfect introduction to this incredible variety!
Your growing experience sounds like it's going absolutely perfectly - those vibrant colors on long, strong stems are exactly what makes California Giants such special flowers! It's so wonderful that you're seeing such healthy, disease-free plants too. These zinnias are real workhorses in the garden, and when they're happy, they really show off with those gorgeous, bold blooms that just pop with color.
We love that your neighbors couldn't resist coming up from the street to get a closer look! There's something so special about California Giants because they're true showstoppers - those big, vibrant blooms on those sturdy stems just demand attention and admiration. It's such a wonderful feeling when your garden becomes a neighborhood attraction like that!
The fact that you're already looking forward to next year's bounty tells us everything we need to know - these zinnias have clearly earned their place as a must-grow in your garden! California Giants really deliver on all the things that matter most: incredible colors, strong performance, reliable health, and that wow factor that makes gardening so rewarding.
Your experience will be so encouraging for other gardeners who might be considering trying these zinnias for the first time!
Thank you so much for sharing such an enthusiastic review about both the visual impact and growing performance!
Keep on growing 🌻️
- LAURA A T.Verified BuyerRated 5 out of 5 stars2/11/255 Stars
Zinnias are one of my favorite flowers. They are so colorful and brighten up my garden. This is the second year I have grown them. Beautiful.
- Stacey B.Verified BuyerRated 5 out of 5 stars2/6/255 Stars
Great company!
Love my zinnias seeds!
- Kathryne H.Verified BuyerRated 5 out of 5 stars1/19/255 Stars
Can’t wait for spring so I can plant my seeds!
- Cindy R.Verified BuyerRated 5 out of 5 stars11/30/245 Stars
Love the selection and the growth of all your seeds. Everything is perfect!