Days to Maturity: Approximately 60-120 days from direct sowing (often 65-75 days for spring/summer harvests; can be longer in fall/winter plantings, with ongoing production from perennials).
Sun Needs: Full sun with at least 6-8 hours of direct sunlight daily—essential for strong stalk growth and flavor development in Utah's sunny conditions.
Season Type: Cool-season perennial; plant early spring (as soon as soil is workable, around 40°F+) or late summer/fall for overwintering—very cold-hardy and frost-tolerant, often surviving Utah winters with mulch protection.
Plant Habit & Support: Clumping, upright stalks in bunches (4-9 per cluster) growing 10-18 inches tall; no support needed—space 2-4 inches apart in rows 12-18 inches apart for easy cut-and-come-again harvesting.
Other Notes: Perennial nature means plants return year after year if left in place; divide clumps every few years to maintain vigor; watch for aphids, thrips, or onion maggots—good airflow and organic mulch (like straw or compost) help prevent issues; excellent for continuous harvest by cutting tops as needed.
Best Planting Method: Direct sow seeds only (available as seed packets)—plant ¼-½ inch deep in rows or beds as soon as soil can be worked in spring or late summer/fall for overwintering. Thin seedlings to 2-4 inches apart once emerged. Amend soil with compost for fertility and loose, well-drained texture—raised beds are ideal in heavier or alkaline Utah soils to prevent rot and encourage healthy roots. Organic mulch (such as straw, compost, or grass clippings) around plants retains moisture, moderates soil temperature, and suppresses weeds.
Watering Needs: Keep soil consistently moist but not waterlogged (about 1 inch per week)—even moisture supports tender stalks and prevents toughness or bolting; drip irrigation or base watering is best in dry Utah conditions to keep foliage dry and reduce disease risk. Mulch helps during warmer spells; established perennials become more drought-tolerant but benefit from regular watering for best quality.
Fertilization Needs: Incorporate compost or balanced organic fertilizer at planting for nutrient-rich soil. These onions are light to moderate feeders—apply a light side-dressing with a balanced or nitrogen-rich option (like compost tea) midway through the season if growth slows, but avoid excess to prevent soft, disease-prone tops. Harvest by cutting green stalks at the base as needed (cut-and-come-again encourages regrowth from the clump) or pull entire plants for use—regular harvesting keeps flavor mild and plants productive year-round in mild conditions.