Early Black Heart is a stunning F1 hybrid sunflower that delivers classic beauty with a modern twist. This pollen-less variety grows 60 to 72 inches tall and reaches full maturity in just 50 to 59 days, making it one of the earliest bloomers you can plant. The flowers feature that signature dark center that gives the variety its name, set against bright petals that command attention in any garden. Hardy from zones 2 to 11 and thriving on full sun and moderate water, this annual hybrid brings reliable, breathtaking blooms to nearly any North American garden.
Full Sun
Moderate
2-11
72in H x ?in W
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Low
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Early Black Heart stands out as a pollen-free single-headed hybrid, which means you get pristine cut flowers without the mess of pollen shedding onto furniture or clothing. The variety lives up to its name with dramatically dark centers that contrast beautifully against the golden petals. At 50 to 59 days to maturity, it blooms faster than many standard sunflower varieties, rewarding you with dramatic color earlier in the season. The plant's compact 8-inch spacing allows you to tuck multiple stems into garden beds or containers without crowding.
Early Black Heart grows as an ornamental flower, prized for its dramatic cut flower potential. The pollen-free characteristic means the blooms last longer in arrangements without staining fabric, furniture, or clothing, making them exceptional for indoor display. Gardeners grow this variety specifically for the visual impact of the dark center against golden petals, either as a specimen plant or massed for bold garden statements.
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Directly sow Early Black Heart seeds as soon as soil temperature reaches 45°F consistently. This pollen-free hybrid germinates best between 50°F and 75°F, so wait until your soil has warmed through spring before planting. In short-season climates, consider starting seeds indoors 2 to 3 weeks before your last frost to secure earlier blooms.
Cut Early Black Heart flowers when the disk (the dark center) has just opened and the outer petals unfold fully. Cut the stem early in the morning when the plant is fully hydrated, using a sharp knife to slice at a 45-degree angle. These pollen-free blooms hold their appearance far longer in vases than standard sunflowers, often lasting two weeks or more with regular water changes and stem recuts every few days.
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“Early Black Heart represents the modern hybrid sunflower breeding work aimed at extending the sunflower season earlier and creating cleaner, longer-lasting cut flowers for home and commercial growers. Described as the successor to Zohar, this F1 hybrid builds on decades of sunflower selection to combine early flowering with the pollen-free trait that makes arranging and displaying these flowers far more practical for indoor use. The variety emerged from intentional breeding to meet the demand for ornamental sunflowers that flower reliably within 50 to 59 days across diverse climates.”