Spinach Seeds - Winter Giant
Best choice for gardeners looking to extend harvests into colder months.
Embrace the rich, dark green leaves of Winter Giant Spinach, a variety perfect for extending your harvest into cooler months. This spinach boasts large, semi-savoyed leaves and is renowned for its heavy yields and exceptional cold hardiness. It thrives in late fall plantings, winter greenhouses, or can be overwintered under mulch. For optimal growth, sow seeds in well-draining soil in a location with full sun or partial shade. Spinach prefers cool weather, so avoid planting during peak summer heat to prevent bolting and ensure tender, sweet leaves.
$3.95
Owner Satisfaction
4.7
/ 5
Category Rank
270
/ 5876
#270 in Seeds & Seed Tape
Price vs Category Average
-63%
Below average
Botanical Name
_Spinacia oleracea_
/ _Spinacia oleracea_
Who it's for
- Gardeners in cooler climates extending their growing season
- Home cooks seeking abundant harvests for fresh meals
- Sustainable growers interested in seed saving practices
Who should skip it
- Impatient growers wanting a fast-maturing spring crop
- Gardeners in regions with rapidly warming spring temperatures
- Busy cooks preferring quick and easy produce preparation
Performance breakdown
Cold Hardiness
Exceptional resilience allows for successful harvests well into the freezing months.
Yield Potential
Heavy production capacity ensures a bountiful supply of fresh greens.
Growth Speed
Rapid maturation cycle delivers harvestable leaves in just 45 days.
Bolting Resistance
Strong genetic resistance keeps leaves tender when planted in cooler seasons.
Cultivation Versatility
Adapts seamlessly to garden beds, winter greenhouses, or mulched overwintering setups.
Leaf Quality
Large, semi-savoyed texture provides a superior mouthfeel for culinary applications.
Key Specs
Botanical Name
_Spinacia oleracea_
Life Cycle
Annual
Plant Type
Vegetable
Seed Count
170
Packet Weight
3g
Planting Season
Spring or Fall
Sun Requirement
Full Sun or Partial Shade
Seed Depth
1/2"
Features
- Heavy yields for abundant harvests
- Exceptional cold hardiness
- Ideal for fall and winter crops
- Large, dark green, semi-savoyed leaves
- Suitable for greenhouse cultivation
- Tolerates frost for extended growing
- Fast-growing cool-weather crop
What customers say
Gardeners overwhelmingly praise the 'Winter Giant' spinach seeds for their exceptional reliability and cold hardiness, ensuring successful cool weather harvests. The germination rate is consistently highlighted as quick and dependable, even in difficult soil. Reviewers appreciate the robust nature of this variety, noting its ability to overwinter for extended spring yields. The resulting spinach quality is superior, featuring large, dark green, and flavorful leaves that resist bitterness. This high yield and dependable growth offer excellent value, making these seeds a worthwhile investment for serious cool weather gardening. Customers trust this product for consistently delivering a high quality crop.
Know before you buy
It is not recommended. Winter Giant is a cool-weather crop that will bolt—or go to seed prematurely—if exposed to peak summer heat, resulting in bitter leaves.
This variety is exceptionally cold-hardy and can tolerate frost. It is specifically bred to thrive in late fall, winter greenhouses, or overwintered outdoors under a layer of mulch.
While you can direct seed them 1 inch apart, you should thin the seedlings to 4–6 inches apart once they are established to ensure each plant has enough room to produce its full-sized, semi-savoyed leaves.
You can expect to harvest your spinach approximately 45 days after sowing, provided the plants are grown in their preferred cool-weather conditions.
Winter Giant is versatile and performs well in either full sun or partial shade. If you are planting in a warmer climate or during the shoulder seasons, partial shade can help keep the soil cool and prevent bolting.
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