Customer Service Hours
Mon-Fri 8-4 MST
Features
Family
Asteraceae
Native
Mexico
Life Cycle
Annual
Plant Height
Tall (Greater than 24")
Flower Color
Mixed
Bloom Season
Summer to frost
Further Information
Plant Characteristics
- Attracts Pollinators
- Cut Flower
- Edible Flower
- Good for Containers
Growing Conditions
- Frost Sensitive
- Heat Tolerant
Plant Resistance
Deer Resistant
About California Giants Blend Zinnia Seeds
Zinnia elegans
Large, 4"–6" flowers in red, pink, purple, and white.
Planting Zinnia
Plant Spacing
A group of 3 seeds every 12"
Light Required
Full sun
Plant Height
Tall (Greater than 24")
Planting Depth
¼"
Planting Details
| Seed Depth | ¼" |
|---|---|
| Seed Spacing | A group of 3 seeds every 12" |
| Thinning | When 2" tall, thin to 1 every 12" |
| Germination | 3–10 days |
| Start Indoors | 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 |
| Direct Sow | RECOMMENDED. 1 to 2 weeks after your average last frost date. |
| Growing & Harvesting | For longest vase life, harvest before small yellow flowers emerge between petals. Change vase water often. |
Find Your Frost Date & Grow Zone
Average First Frost Date
October 19
Average Last Frost Date
May 19
Your Hardiness Zone is
5b
Send Your Recommendation
Total 5 star reviews: 61 Total 4 star reviews: 3 Total 3 star reviews: 1 Total 2 star reviews: 1 Total 1 star reviews: 1
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Rating
Which best describes you as a gardener?
67 reviews
- Bonnie R.Verified BuyerRated 5 out of 5 stars8/3/26Zinnias!
Germinated quickly, but hasn't bloomed yet.
Which best describes you as a gardener? BeginnerBIBotanical Interests8/4/26Hey Bonnie,
Thank you so much for taking the time to share your thoughts in a review. We're thrilled to hear that your California Giants Blend Zinnia Seeds germinated quickly! We can't wait to hear how those blooms turn out once they start flowering. Your feedback is invaluable to us, and we're committed to ensuring your experience is positive. Thanks again for your input. Keep on growing 🌻
- TimRated 5 out of 5 stars7/22/26Very Happy
My first time growing Zinnias and I just happened to see these seeds in my local hardware store. Started them the beginning of April in peat pots with grow lights. Planted them mid May (Northern Ohio). They really took off when it got hot and humid and are producing beautiful big blooms of all colors and styles. They're spectacular!
I really got lucky because I didn't research the seeds at all and just bought them on impulse. Now I know they are quality and will be purchasing again next year.
Which best describes you as a gardener? IntermediateBIBotanical Interests7/23/26Hey Tim,
We're so happy to hear about your incredible experience with the California Giants Blend Zinnia Seeds! What an amazing story - it sounds like you really hit the jackpot with that impulse purchase at your local hardware store! Your setup with the peat pots and grow lights sounds fantastic, and it's awesome that these beauties really took off when the hot and humid weather hit! There's nothing better than zinnias that reward your care with those spectacular big blooms in all those amazing colors and styles! We love that your first zinnia growing experience turned out so perfectly, and we're thrilled that you discovered just how quality these seeds are! Thanks for sharing your California Giants Blend growing success and for trusting us for next year's garden! Keep on growing 🌻️
- Collin S.Verified BuyerRated 5 out of 5 stars7/8/26Beautiful Giant Blooms And Plants
Stunning blooms and an amazing palette of color to add to the yard this year. They seem to be surviving a hot, dry climate just fine and blooming prolifically along the way. Couldn’t be happier with these, will definitely be growing again next year.
Which best describes you as a gardener? IntermediateBIBotanical Interests7/11/26Hey Collin,
We're so happy to hear about your fantastic experience with the California Giants Blend Zinnia Seeds! It's awesome that you're getting those stunning giant blooms with such an amazing palette of colors - there's nothing better than zinnias that really deliver on that wow factor! And knowing they're thriving and blooming prolifically even in your hot, dry climate just makes our day - these beauties are such tough performers! Thanks for sharing your zinnia growing success with us and we're so happy to hear you'll be growing them again next year! Keep on growing 🌻️
- christie p.Verified BuyerRated 5 out of 5 stars6/19/26Wonderful
These are a winner. Sprouted quickly, are growing and thriving. I need to thin them out and hopefully they will yield wonderful flowers. Definitely recommend these seeds.
BIBotanical Interests6/24/26Hey Christie,
We're so excited to hear about your California Giants Blend success! It sounds like they're off to a fantastic start with that quick sprouting and thriving growth - that's exactly what we love to see! You're absolutely right about thinning them out to give those beauties room to really show off their giant blooms. We have a feeling you're going to be blown away by the gorgeous flowers these will produce! Thanks for sharing your wonderful zinnia experience and for the recommendation! Keep on growing 🌻️
- Patricia O.Verified BuyerRated 5 out of 5 stars4/26/26Waiting…
Seeds are growing nicely inside, but I have to wait to plant outside since it’s been a cold spring here in the northeast. That said, I look forward to seeing how beautifully the zinnias turn out again. Last year, I had a gorgeous crop! Gave a few bouquets to friends and neighbors. 🌺
Which best describes you as a gardener? IntermediateBIBotanical Interests5/8/26Hey Patricia,
We love that your California Giants Blend Zinnia Seeds are growing nicely inside while you wait for it to warm up! What a smart move starting them indoors! We're so excited to hear about last year's gorgeous crop and how you spread the zinnia joy with bouquets for friends and neighbors! We can't wait for you to experience another amazing season with these beauties! Thanks for sharing your growing journey with us! Keep on growing 🌻️