Silvia Brussels Sprouts More Flowers is a cold-season brassica that delivers abundant, tender sprouts in 103 days. This frost-hardy variety thrives in zones 3 through 9, growing to a compact 20-24 inches tall, and produces sprouts that develop their sweetest flavor when the plant experiences cool fall weather. Unlike standard brussels sprout varieties, Silvia's name hints at its prolific production, offering gardeners in shorter-season climates a genuine shot at a full harvest before winter arrives.
Full Sun
Moderate
3-9
24in H x ?in W
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High
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Silvia produces generously in cool conditions, making it reliable for fall and winter harvests across much of North America. At just 20-24 inches tall, it fits comfortably in smaller garden beds and even containers, while its 103-day maturity means you can sow in early summer for a substantial autumn crop. The frost-hardiness means the plants actually improve in flavor after a light frost, a trait that makes late-season harvesting both practical and delicious.
Brussels sprouts are roasted until caramelized, shredded raw into slaws, sautéed with garlic and butter, or halved and grilled. Silvia's prolific nature makes it especially suited to batch cooking and storage, where you can harvest multiple flushes of sprouts from a single plant over several weeks.
No timeline data available yet for this variety.
Start seeds indoors 4 to 6 weeks before your planned transplant date, or approximately 4 months before your average first fall frost date so that sprouts mature during cool weather. Sow seeds 1/4 inch deep in seed-starting mix and maintain soil temperatures between 60°F and 85°F for optimal germination. In mild climates, you can also sow seeds directly outdoors in fall for a late-winter and early-spring harvest.
Transplant seedlings outdoors 4 to 6 weeks after sowing, timing the transplant for approximately 4 months before your average first fall frost date. This ensures plants will mature as temperatures cool, which improves sprout flavor and texture. Harden off seedlings gradually before moving them to the garden.
Direct sow seeds outdoors when soil temperature reaches at least 40°F, approximately 4 months before your average first fall frost date. In mild climates, fall sowing works well for late-winter and early-spring harvest.
Harvest begins around 103 days from transplanting. Pick sprouts from the bottom of the plant upward once they reach golf-ball size, typically 1 to 1.5 inches in diameter. Twist and snap each sprout away from the stem, or use a sharp knife to cut them cleanly. You can harvest over several weeks as new sprouts continue to develop up the stalk. Flavor improves significantly after light frost, so don't rush to harvest all sprouts at once; letting them experience cold weather enhances their sweetness.
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