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Product Description
"Grow the robust Autumn Giant Leek in your garden with these premium heirloom, non-GMO seeds! This Allium porrum variety produces large, tender stalks with mild onion-like flavor, perfect for soups, stews, and sautés. Cold-tolerant and easy-to-grow, these seeds thrive in outdoor gardens, raised beds, or containers, making them ideal for both beginner and experienced gardeners. Enjoy a bountiful harvest of flavorful, homegrown leeks throughout the growing season."

Life Cycle
Biennial
Planting Season
Spring / Summer
Growth Habit
Upright, Tall
Flavor Profile
Mild, Sweet, Onion-like
Plant Characteristics
Thick, Long White Stalks; Dark green leaves; Cold-tolerant
Use
Soups, Stews, Sautéing, Salads
Growing Conditions
Full sun; fertile, well-drained soil; cool-season tolerant
Harvest Advantages
Long storage, High-yield, Slow bolting
Plant Resistance
Cold-hardy, Disease-resistant
Allium ampeloprasum var. porrum
Seed Names
Leek Autumn Giant Seeds
Seed Type
Heirloom, Non-GMO
Leek Autumn Giant is a robust, cold-hardy leek variety producing thick, long white stalks with flavorful dark green tops. Ideal for soups, stews, salads, and sautéing, it matures in cool-season gardens and offers high yields with long storage potential. Its slow-bolting habit makes it perfect for autumn and winter harvests.
Light Requirement
Full Sun
Planting Depth
¼ inch
Sowing Method
Direct sow or transplant seedlings
Plant Spacing
4–6 inches apart; 12–18 inches between rows
Days to Maturity
120–150 days
Soil Preparation
Soak seeds 6–12 hours before sowing (optional)
Hardiness Zones
USDA 3–9
Water Needs
Moderate, Even Moisture
Planting Season
Early Spring or Late Summer
Seed Count
Recommended Coverage
100
up to 10–12 sq.ft
500
up to 50–60 sq.ft
1000
up to 100–120 sq.ft
Leek Autumn Giant (Allium ampeloprasum) thrive best in warm وsunny conditions with well-drained soil. Ensure consistent watering during the germination and growing phases for optimal yield.
Generally وLeek Autumn Giant (Allium ampeloprasum) seeds germinate within 7–14 days and take about 70–120 days to reach full maturity وdepending on growing conditions.
Yes وLeek Autumn Giant (Allium ampeloprasum) can be grown successfully in deep pots or containers with nutrient-rich soil. Ensure proper drainage and sunlight exposure.
Water the plants regularly to keep the soil moist but not soggy. During hotter days وmore frequent watering may be needed.
Absolutely! Leek Autumn Giant (Allium ampeloprasum) are known for being easy to grow وmaking them ideal for beginners and home gardeners alike.