Wintering Onion (Allium cepa var. proliferum) – 200 Cold-Hardy Onion Seeds

2020-08-28T21:11:05+02:00

Price: 2.39

Allium cepa var. proliferum, commonly known as Wintering Onion or Overwintering Onion, is a hardy, cold-tolerant onion variety grown specifically to endure harsh winter conditions and produce early, flavorful green shoots and bulbs in spring. It’s ideal for gardeners who want a head start on the growing season and a reliable supply of early onions.

Usage:
Perfect for home vegetable gardens, market growers, and permaculture systems. Grown for both its early green tops (scallions) and small, tasty bulbs, wintering onions are a dual-purpose crop that bridges the gap between fall and spring harvests.

Sowing Time:

Sow in late summer to early autumn (August–October), depending on climate.

In milder climates, sow directly in the garden.

In harsher climates, start indoors and transplant outdoors once seedlings are strong.

Germination:

Germinates in 7–14 days at 15–22°C (59–72°F).

Sow 1–2 cm deep, 2–3 cm apart in rows.

Soil Requirements:

Prefers loose, well-drained, fertile soil.

Enrich soil with compost before planting.

Best in neutral to slightly alkaline soil (pH 6.5–7.5).

Light Requirements:

Full sun is essential for healthy bulb and top growth.

Watering:

Keep soil consistently moist during germination and early stages.

Reduce watering once bulbs begin to form.

Planting Tips:

Mulch heavily after planting to protect young plants through the winter.

Space rows 20–30 cm (8–12 inches) apart.

Harvest green tops in early spring or wait until bulbs mature in late spring to early summer.

Height & Spread:

Tops reach 30–40 cm (12–16 inches) high.

Bulbs mature to 2–5 cm (0.8–2 inches) wide depending on spacing and growing time.

Additional Info:
Wintering onions are an excellent choice for extending your harvest season and making the most of cooler months. They’re dependable, easy to grow, and produce earlier than traditional spring-sown onions. Perfect for fresh eating, cooking, or adding to early spring dishes.

Contains 2 grams or around 200 seeds