Culinary Leek
Megaton Leek is an F1 hybrid from Allium ampeloprasum, bred for exceptional uniformity and speed to harvest. This frost-hardy variety matures in just 90 days from transplants across hardiness zones 3-11, making it reliable whether you're gardening in cold northern climates or mild southern regions. Its compact growth habit and consistent sizing streamline both harvest and kitchen prep, while its heavy nutrient demand rewards fertile soil with vigorous, uniform stalks ready for soups, stews, and grilled preparations.
Full Sun
High
3-11
?in H x ?in W
Perennial
Moderate
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The real strength of Megaton lies in its exceptional uniformity across the planting; seed catalogs emphasize how consistent sizing translates directly into a faster, easier harvest. This hybrid's frost-hardy nature means you can leave stalks in the ground well into winter in many regions, extending your harvest window without special storage. Combined with its compact growth and quick 90-day maturity from transplants, Megaton delivers reliable leek production without the long season demands of many other varieties.
Megaton leeks shine in the pot, where their tender stalks soften beautifully in soups and stews. They're equally at home on the grill, where their mild onion-like flavor caramelizes into something sweet and complex. Fresh uses range from raw slivers scattered across omelets to salads when harvested at their most tender, finger-sized stage.
Sow seeds indoors 10-12 weeks before your last spring frost date, placing them 1/4 inch deep and 1/4 inch apart in flats. Maintain soil temperatures between 50-70°F for reliable germination. When seedlings reach about 5 inches tall, trim them back to 3 inches to promote sturdier growth before transplanting.
Transplant seedlings outdoors in late spring once they reach approximately 8 inches tall and pencil-thick in diameter. Space them 4 inches apart in rows at least 12 inches apart, using a dibber to create holes 6 inches deep. Plant so only 2-3 inches of leaf extends above soil; do not firm the soil around transplants. Instead, let irrigation or rain naturally fill in the dibble hole. Beginning growth temperature is around 45°F.
Direct sowing is possible but less common; thin seedlings to the strongest plant when they reach 4-5 inches tall.
Harvest Megaton leeks anytime they reach 1/2 inch in diameter or larger for standard texture and flavor, or earlier at finger-size when you prefer milder, more tender stalks in fresh applications like salads. Because leek tops don't die back like onion foliage, you can harvest on a cut-and-come-again basis as needed. In cold-winter regions, leeks can remain in the ground and be harvested as needed until the soil freezes; in milder climates, they'll often last through the entire winter in the garden.
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