Jan Bos is a legendary red hyacinth that has captivated gardeners since 1910, prized for its intoxicating fragrance and luminous crimson blooms. This heirloom cultivar thrives in hardiness zones 4 through 8 and reaches peak flower in 70 to 85 days from planting, making it a reliable choice for fall bulb gardens across much of North America. Its award-winning growing ability and striking color have earned it recognition as one of the finest red hyacinths ever developed, and it performs beautifully in partial shade to full sun.
Partial Shade
Moderate
4-8
?in H x ?in W
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Moderate
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The glimmering red petals release a fragrance so famous that hyacinth enthusiasts recognize Jan Bos by scent alone. Since its introduction over a century ago, this variety has won multiple awards for its combination of showstopping color and reliable performance, even in challenging climates. Plant bulbs in clusters of 10 or more to create the massed display they deserve, and you'll understand why this variety has remained a gardener's treasure for generations.
Jan Bos thrives as a spring-flowering ornamental bulb, valued for its brilliant red color and powerful fragrance in garden beds, borders, and container plantings. The dense flower spikes make it excellent for cutting, bringing its distinctive scent indoors to brighten late winter and early spring arrangements.
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Plant bulbs outdoors in fall before the first hard frost. Position them in their final location 4 inches deep and 3 to 6 inches apart in well-draining soil. No hardening off is required since these are dormant bulbs, not seedlings.
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“Jan Bos emerged in 1910 as a breakthrough in hyacinth breeding, representing a moment when gardeners sought deeper reds and more dependable hardiness in their spring-flowering bulbs. The variety has been preserved and celebrated ever since, accumulating awards for both its ornamental qualities and its ability to perform reliably across diverse growing regions. Its longevity in cultivation speaks to its genuine horticultural merit, not mere nostalgia, and it remains a benchmark against which other red hyacinths are judged.”