606 Onion

Grow crisp, flavourful onions right at home with our 606 Onion starts. Easy to grow and dependable, these onions develop firm, full-sized bulbs that are perfect for fresh eating, cooking, or long-term storage. A must-have for vegetable gardens, raised beds, and kitchen gardens.

Onion 'Green Bunching' This fast-growing variety produces crisp, slender stalks that are perfect for salads, soups, stir-fries, and garnishes, with continuous harvests throughout the season.

Onion 'Walla Walla' A favourite heirloom onion known for its large, juicy bulbs and mild flavour. Perfect for fresh slicing, grilling, and cooking, it's a standout choice for the home vegetable garden.

Color

Wholesale: Please refer to the Hilltop Greenhouses Ltd. Policies PDF for full details.

Retail: No returns on plants, exchanges only.

Plant details

Scientific Name

Allium cepa

Light

Full Sun

Water

Onions grow best in consistently moist, well-drained soil. Water regularly to keep the soil evenly moist, especially while bulbs are developing. Reduce watering as the tops begin to yellow and fall over before harvest to help bulbs cure properly.

Care Level

Onions are easy to grow and require minimal care. Keep the soil consistently moist, control weeds, and fertilize occasionally during active growth. Reduce watering as bulbs mature to encourage proper curing and storage.

Optimal Temperature

13–24°C (55–75°F)

Frost Tolerant

Yes

Mature Height

12–18 in (30–45 cm)

Mature Spread

4–6 in (10–15 cm)

Deer Resistant

Yes

Edible

Yes

Pet Friendly

No

Toxic

No