Isabellina Zinnia is a classic heirloom annual that produces masses of soft, buttery yellow blooms from early summer through the first frost. Growing to a sturdy 3 feet tall and spreading 2 feet wide, this variety thrives in zones 2 through 11 and reaches full flower in 63 to 84 days from seed. The densely petaled blooms open to 4 to 5 inches wide and last impressively long both on the plant and in the vase, making this a generous performer for gardeners who value abundant, long-lasting color.
Full Sun
Moderate
2-11
36in H x 24in W
—
High
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Dense, golden petals clustered into 4 to 5-inch blooms distinguish this zinnia from lighter-flowering types. The plant's generous height and continuous blooming habit mean cutting armfuls of flowers only encourages more production. Soft buttery tones pair beautifully with pastel garden schemes, while the drought tolerance and deer resistance make it a low-maintenance annual that thrives in full sun with minimal fussing once established.
Isabellina Zinnia excels as a cut flower; the long stems and full, heavy blooms fill vases generously and persist for weeks with regular water changes. Its soft yellow color makes it a natural choice for blending into pastel-themed arrangements, and because cutting promotes more flowering, it rewards frequent harvesting throughout the season.
No timeline data available yet for this variety.
Sow seeds indoors 6 to 8 weeks before your last spring frost. Plant seeds at a depth of 1/16 to 1/4 inch and maintain soil temperature between 70 and 80 degrees Fahrenheit. Seeds typically sprout in 5 to 10 days. Transplant seedlings outdoors after the last frost date when soil has warmed.
Harden off seedlings gradually over 7 to 10 days before transplanting after the last spring frost. Space plants 1 inch apart in full sun. Soil should be well-draining with a pH between 6.0 and 7.0.
Direct sow seeds outdoors after the last spring frost. Sow at a depth of 1/16 to 1/4 inch directly into prepared garden soil and keep moist until germination occurs in 5 to 10 days.
Pinch back young plants to encourage bushier, fuller growth. Deadhead spent blooms regularly throughout the season to promote continuous flowering and extend the bloom window from summer through fall.
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