Eden Seeds
Onion White Utah Jumbo Seeds
$3.90
Unit price perAllium cepa
White Utah Jumbo is a vigorous long-day Onion producing large to jumbo-sized, rounded bulbs with clean white skin and crisp white flesh. Plants develop strong tops and uniform bulbs, providing dependable yields when grown in regions with the long summer daylight needed for good bulb development.
The flesh has a mild, slightly sweet flavour and satisfying crisp texture. It is excellent sliced fresh into salads, sandwiches and salsas, or used for pickling, roasting, grilling and general cooking. The white bulbs are particularly useful where a clean, mild onion flavour is preferred.
White Utah Jumbo is a long-day onion, requiring the longer daylight hours of late spring and summer to initiate and develop substantial bulbs. It is therefore best suited to cooler southern regions of Australia, where summer days are sufficiently long. In warmer northern regions, short-day varieties are generally more reliable for mature bulb production.
Onions have been cultivated since ancient times, with their origins generally traced to Central and Southwest Asia. Their versatility, flavour and ability to store made them an important staple crop throughout the ancient world and eventually led to varieties adapted to different climates, latitudes and day lengths.
For the largest bulbs, provide generous spacing, full sun and fertile, well-drained soil. Maintain steady moisture during active growth, but avoid excessive fertilising or waterlogged conditions.
Seed count: approximately 240–400 seeds/g
Approximately 200 seeds per packet
When to Plant (Australia)
Tropics: Not recommended for reliable bulb production
Subtropics: Generally not suited as a bulbing onion
Mild southern climates: Winter to early spring
Cold climates: Winter to early spring
Planting / Sowing
Sow approximately 5–10 mm deep into prepared soil, seedbeds or trays. Keep consistently moist and lightly shade newly sown seed until germination is well established.
Transplant or thin seedlings to approximately 10–15 cm apart. For maximum jumbo-sized bulbs, allow around 15 cm between plants to reduce competition.
Grow in full sun in fertile, well-drained soil and maintain even moisture during active growth and bulb development. As a long-day variety, White Utah Jumbo requires sufficiently long summer daylight hours for reliable bulb formation, making latitude and sowing time important.
Reduce watering as the bulbs approach maturity. Harvest in summer once the tops naturally yellow, dry and fall over. Lift carefully and cure thoroughly in a dry, airy, well-ventilated position before storing.
Due to quarantine restrictions, TAS has an 800g limit per each seed variety and WA has a 10,000 seeds limit per variety.
Onion White Utah Jumbo Seeds
$3.90
Unit price per
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Allium cepa
White Utah Jumbo is a vigorous long-day Onion producing large to jumbo-sized, rounded bulbs with clean white skin and crisp white flesh. Plants develop strong tops and uniform bulbs, providing dependable yields when grown in regions with the long summer daylight needed for good bulb development.
The flesh has a mild, slightly sweet flavour and satisfying crisp texture. It is excellent sliced fresh into salads, sandwiches and salsas, or used for pickling, roasting, grilling and general cooking. The white bulbs are particularly useful where a clean, mild onion flavour is preferred.
White Utah Jumbo is a long-day onion, requiring the longer daylight hours of late spring and summer to initiate and develop substantial bulbs. It is therefore best suited to cooler southern regions of Australia, where summer days are sufficiently long. In warmer northern regions, short-day varieties are generally more reliable for mature bulb production.
Onions have been cultivated since ancient times, with their origins generally traced to Central and Southwest Asia. Their versatility, flavour and ability to store made them an important staple crop throughout the ancient world and eventually led to varieties adapted to different climates, latitudes and day lengths.
For the largest bulbs, provide generous spacing, full sun and fertile, well-drained soil. Maintain steady moisture during active growth, but avoid excessive fertilising or waterlogged conditions.
Seed count: approximately 240–400 seeds/g
Approximately 200 seeds per packet
When to Plant (Australia)
Tropics: Not recommended for reliable bulb production
Subtropics: Generally not suited as a bulbing onion
Mild southern climates: Winter to early spring
Cold climates: Winter to early spring
Planting / Sowing
Sow approximately 5–10 mm deep into prepared soil, seedbeds or trays. Keep consistently moist and lightly shade newly sown seed until germination is well established.
Transplant or thin seedlings to approximately 10–15 cm apart. For maximum jumbo-sized bulbs, allow around 15 cm between plants to reduce competition.
Grow in full sun in fertile, well-drained soil and maintain even moisture during active growth and bulb development. As a long-day variety, White Utah Jumbo requires sufficiently long summer daylight hours for reliable bulb formation, making latitude and sowing time important.
Reduce watering as the bulbs approach maturity. Harvest in summer once the tops naturally yellow, dry and fall over. Lift carefully and cure thoroughly in a dry, airy, well-ventilated position before storing.
Due to quarantine restrictions, TAS has an 800g limit per each seed variety and WA has a 10,000 seeds limit per variety.
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