Onion sets are immature onion bulbs grown from seed and harvested early. They're replanted to grow into full-sized onions and are easier and faster than growing from seed.

When should I plant onion sets?

For overwintering varieties, plant in autumn (September–November). For spring-planted sets, plant from February to April, depending on the weather.

How long do onion sets take to grow?

Autumn-planted sets are typically ready to harvest by June or July. You'll see green shoots within 7–10 days after planting.

Do onion sets need full sun?

Yes. Onions need 6–8 hours of full sun per day to grow healthy bulbs. Choose an open, sunny spot with good air circulation.

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Carbeth Plants Winter Onion Sets Mix, Approx 750g, Planting Red, Yellow

Carbeth Plants Winter Onion Sets Mix, Approx 750g, Planting Red, Yellow

Product ID: 271314342

Details

Brand
Carbeth Plants
Colour
Mix
Expected blooming period
Spring to
Expected planting period
Autumn
Indoor/Outdoor usage
Outdoor
Material feature
Organic

🌱750g mixed onion sets

❄️UK winter hardy varieties

🧑‍🌾Beginner-friendly planting

Description

🌿 Grow your own winter-proof flavor powerhouse—because fresh beats store-bought every time!

WINTER HARDY MIX - Includes resilient Red Baron, Stuttgarter Giant, and Centurion varieties that brave the cold UK winters.
GENEROUS 750 G BUNDLE - A substantial mix of premium onion sets ensures a bountiful spring to summer harvest.
ORGANIC LOW MAINTENANCE - Grow clean, edible onions with moderate watering and minimal fuss—ideal for busy professionals.
EFFORTLESS AUTUMN PLANTING - Perfect for beginners, these sets thrive when planted from August to November—no green thumb required.
FLEXIBLE STORAGE DELIVERY - Ready to plant on arrival or store easily in a cool, airy spot until your garden is prepped.

Carbeth Plants Winter Onion Sets Mix offers approximately 750g of organic, UK winter-hardy onion varieties including Red Baron, Stuttgarter Giant, and Centurion. Designed for beginner gardeners, these low-maintenance sets are best planted from late summer to autumn and yield fresh, edible onions from spring through summer. Perfect for outdoor cultivation in loam soil with full sun exposure, they combine convenience, resilience, and quality for a rewarding homegrown experience.

Specifications

ASIN	B08SBVLV3L
Best Sellers Rank	285 in Garden ( See Top 100 in Garden ) 11 in Vegetable Seeds
Brand Name	Carbeth Plants
Colour	Mix
Customer Reviews	4.4 4.4 out of 5 stars (1,181)
Expected Planting Period	Autumn
Indoor Outdoor Usage	Outdoor
Manufacturer	Carbeth Plants
Material Features	Organic
Moisture Needs	Moderate Watering
Number of Items	1
Number of Pieces	150
Other Special Features of the Product	Edible, Low Maintenance
Plant or Animal Product Type	Onion
Soil Type	Loam Soil
Sunlight Exposure	Full Sun
Unit Count	750.0 gram
expected blooming period	Spring to Summer

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