Catskill Brussels Sprouts, Heirloom Seeds

Catskill Brussels Sprouts — The 1941 Heirloom That Gets Sweeter After Frost

Catskill is one of the most reliable and productive Brussels sprouts varieties ever developed. Introduced in 1941, it produces extra-large, deep green 2-inch round sprouts on strong 20–24 inch stalks — firm, prolific, and excellent for both fresh eating and freezing. The flavor is outstanding, and it only gets better after the first frost — cold temperatures convert starches to sugars, making Catskill noticeably sweeter as the season progresses. You can even leave plants in the garden through winter in mild climates.

A long-season producer that rewards patient gardeners with a continuous harvest of premium sprouts from fall through winter.

Why Grow Catskill Brussels Sprouts?

• Extra-large 2" deep green sprouts — firm, prolific, and beautiful
• Sweeter after frost — cold temperatures improve flavor dramatically
• Long harvest season — 85–110 days, continuous production through fall and winter
• Excellent for freezing — one of the best Brussels sprouts varieties for preservation
• 1941 heirloom heritage — proven performance for over 80 years
• Open-pollinated heirloom — save seed year after year

Growing Notes

Start indoors 4–5 weeks before transplanting, then transplant to permanent locations 100 days before first fall frost. Brussels sprouts require fertile, heavy soil and consistent moisture — they turn bitter when allowed to dry out. Mulch around the base of plants to retain moisture in hot months. Space plants 18–24 inches apart in full sun. Harvest when sprouts are 1–2 inches in diameter and tight. Break off the leaf directly below each sprout to encourage continued production.

Packed and shipped by Box Garden Seeds LLC — heirloom seeds grown without GMOs, selected for flavor, resilience, and your garden’s success.