{"product_id":"california-giant-zinnia-heirloom-wildflower-seeds","title":"California Giant Zinnia Heirloom Wildflower Seeds","description":"\u003ch2\u003eHistory\u003c\/h2\u003e\u003cp\u003eThe California Giant Zinnia (\u003cem\u003eZinnia elegans\u003c\/em\u003e) is one of the most beloved cutting garden flowers in American horticulture — a big, bold, dahlia-like zinnia developed in the early 20th century and named for the California seed growers who bred it to spectacular proportions. Zinnias themselves are native to Mexico and Central America, where they have been cultivated since the time of the Aztecs, but it was American and European breeders of the 1800s and 1900s who transformed the small, single-petaled wildflower into the towering, double-flowered giants that dominate cutting gardens today. California Giant Zinnia produces enormous blooms — up to 5 inches across — in a vivid mix of orange, red, yellow, pink, lavender, and white on tall, sturdy stems that were purpose-built for the vase. Open-pollinated and non-GMO, California Giant Zinnia is a true heirloom performer that has earned its place in cutting gardens for over a century.\u003c\/p\u003e\u003ch2\u003ePlant Profile\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDays to Bloom:\u003c\/strong\u003e 60–70 days from seed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant Size:\u003c\/strong\u003e Tall and upright, 24–36 inches tall\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlower Size:\u003c\/strong\u003e Enormous — up to 5 inches across\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlower Colors:\u003c\/strong\u003e Vivid mixed — orange, red, yellow, pink, lavender, white, and bicolors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant Type:\u003c\/strong\u003e Open-pollinated, non-GMO heirloom; annual\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFlower Profile\u003c\/h2\u003e\u003cp\u003eCalifornia Giant Zinnia produces fully double, dahlia-like blooms with densely packed petals in a rich mix of saturated colors. The flowers are massive by zinnia standards — up to 5 inches in diameter — held on long, strong stems that make them exceptional cut flowers. They bloom from midsummer through hard frost, producing more flowers the more they are cut. The color range is bold and celebratory: fiery oranges and reds, bright yellows, deep pinks, soft lavenders, and clean whites — often with subtle bicolor variations that make each stem unique.\u003c\/p\u003e\u003ch2\u003eGrowth Type \u0026amp; Harvest Yields\u003c\/h2\u003e\u003cp\u003eCalifornia Giant Zinnia is a heat-loving annual that thrives in the height of summer when many other flowers struggle. It grows quickly from direct sow, requiring minimal care once established, and rewards regular harvesting with an extraordinary abundance of blooms. The more you cut, the more it produces — making it one of the most generous and rewarding cutting garden flowers available to home gardeners.\u003c\/p\u003e\u003ch2\u003eDisease Resistance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSusceptible to powdery mildew in humid conditions — ensure good air circulation and avoid overhead watering\u003c\/li\u003e\n\u003cli\u003eExcellent heat and drought tolerance once established\u003c\/li\u003e\n\u003cli\u003eTip: Water at the base, not overhead, to reduce mildew pressure\u003c\/li\u003e\n\u003cli\u003eTip: Succession sow every 3–4 weeks for a continuous supply of fresh blooms through fall\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eGrowing Tips \u0026amp; Planting Dimensions\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpacing: 12–18 inches between plants — good air circulation is essential\u003c\/li\u003e\n\u003cli\u003eSow depth: ¼ inch — cover lightly and firm gently\u003c\/li\u003e\n\u003cli\u003eGermination: 5–7 days at soil temps of 70–75°F — zinnias love warm soil\u003c\/li\u003e\n\u003cli\u003eFull sun — minimum 6–8 hours daily; zinnias thrive in full summer heat\u003c\/li\u003e\n\u003cli\u003eDirect sow after all danger of frost has passed and soil is warm\u003c\/li\u003e\n\u003cli\u003eWater at the base — overhead watering promotes powdery mildew\u003c\/li\u003e\n\u003cli\u003eDeadhead or harvest regularly — cutting stimulates continuous bloom production\u003c\/li\u003e\n\u003cli\u003eSuccession sow every 3–4 weeks for continuous cutting garden supply\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhen to Plant\u003c\/h2\u003e\u003cp\u003eDirect sow after last frost when soil has warmed to at least 70°F — zinnias do not tolerate frost and germinate best in warm soil. For a head start, sow indoors 4–6 weeks before last frost in individual cells (zinnias dislike root disturbance). Find your frost dates and hardiness zone at the \u003ca href=\"https:\/\/planthardiness.ars.usda.gov\"\u003eUSDA Plant Hardiness Zone Map\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eCompanion Plants \u0026amp; Mutual Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTomatoes \u0026amp; Peppers\u003c\/strong\u003e — zinnias attract beneficial insects and pollinators that improve fruit set and pest control throughout the vegetable garden\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCucumbers \u0026amp; Squash\u003c\/strong\u003e — the pollinators drawn by zinnias significantly improve pollination rates for cucurbits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBasil\u003c\/strong\u003e — shares the heat-loving summer season; both thrive in the same conditions and benefit from the same pollinators\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarigolds\u003c\/strong\u003e — classic companion pairing for pest deterrence and pollinator attraction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOther Cut Flowers\u003c\/strong\u003e — pairs beautifully with Cosmos, Bachelor Button, and Lisianthus in mixed cutting garden arrangements\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eHow to Enjoy\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut Flower:\u003c\/strong\u003e The ultimate summer cut flower — harvest when the outer petals are fully open but the center is still firm for longest vase life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBouquet Centerpiece:\u003c\/strong\u003e Large blooms anchor mixed arrangements; pair with filler flowers and foliage for stunning summer bouquets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePollinator Garden:\u003c\/strong\u003e Mass plant to create a long-season nectar source for butterflies, bees, and hummingbirds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeed Saving:\u003c\/strong\u003e Allow a few blooms to fully dry on the plant, then harvest and save seeds for next season\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGarden Focal Point:\u003c\/strong\u003e Tall, vivid plants create a spectacular mid-border display from midsummer through fall\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Gardeners Love California Giant Zinnia\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnormous blooms — up to 5 inches across, rivaling dahlias in size and impact\u003c\/li\u003e\n\u003cli\u003eExceptional cutting garden performer — more you cut, more it blooms\u003c\/li\u003e\n\u003cli\u003eLong bloom season — midsummer through hard frost\u003c\/li\u003e\n\u003cli\u003eVivid, cheerful mixed colors — something spectacular in every packet\u003c\/li\u003e\n\u003cli\u003eHeat-loving and drought-tolerant once established — thrives in summer conditions\u003c\/li\u003e\n\u003cli\u003eOpen-pollinated and non-GMO — save your own seeds year after year\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eHarvest Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHarvest when the stem is firm and the outermost ring of petals is fully open — the center should still feel slightly firm\u003c\/li\u003e\n\u003cli\u003eCut stems long — down to the first set of leaves — to encourage branching and more blooms\u003c\/li\u003e\n\u003cli\u003eHarvest in the early morning or evening for longest vase life\u003c\/li\u003e\n\u003cli\u003eChange vase water every 2 days and recut stems at an angle for best results\u003c\/li\u003e\n\u003cli\u003eFor seed saving, leave a few blooms on the plant until fully dry and papery, then harvest the seed head\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eOrder Today\u003c\/h2\u003e\u003cp\u003eAdd California Giant Zinnia Heirloom Wildflower Seeds to your cutting garden this season and grow one of summer's most spectacular and generous bloomers. Choose your pack size and begin to grow.\u003c\/p\u003e","brand":"Garden Heirloom Seeds","offers":[{"title":"Starter Pack of 10 seeds","offer_id":53968418275642,"sku":null,"price":0.99,"currency_code":"USD","in_stock":true},{"title":"Garden Pack of 25 seeds - 🌱 Best Value","offer_id":53968418308410,"sku":null,"price":2.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/7850\/9626\/files\/california-giant-zinnia-raised-bed.png?v=1787865102","url":"https:\/\/gardenheirloomseeds.com\/products\/california-giant-zinnia-heirloom-wildflower-seeds","provider":"Garden Heirloom Seeds","version":"1.0","type":"link"}