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Australia's finest range of heirloom seeds since 1986


Odourless type

Amposta Purple Seeds

The popular heirloom Amposta onion, also known as Morada de Amposta or Bronze D'Amposta, is an intermediate-day variety named after the small Spanish town of Amposta. These onions produce medium-large, globe-shaped bulbs with a vibrant reddish-purple colour and distinctive red and white rings. Renowned for their mildly sweet flavour, they are ideal for raw consumption in sandwiches and salads. As an intermediate-day variety, Amposta onions flourish with an average daylight duration of approximately 12ā€“14 hours, initiating the bulb formation process.

Seed count: 240-400/g.

Available options:

Eden Seeds
Packet (100 seeds) $3.90

General information:


Allium cepa

Widely favoured vegetable since ancient times originally from central Asia. Contains vitamin C, iron, sulphur and fibre. Good winter crop in full sun in rich well drained soil. Harvest after tops dry off and fall over, hang in a cool dry place. Plant different varieties for continuous use. Few people grow enough onions. Don't over-fertilise or waterlog. Shade seeds until well germinated. Sow in autumn/winter.

240-400 seeds per gram

Onion seeds planting information:

When To Plant In Australia
Seed Sowing
Plant space cm:5-10
Row space cm:30-40
Depth cm:0.5-1
Best soil temp:8-30 °C
Other Info
Number of seeds per gram:240-400
Rate per hectare:3.5-4.5kg
Average days to maturity:180-240
Edible Flowers
Sprout & Eat
Sprout & Cut
There are no shipping
restrictions for this seed.
W.A. CustomersDue to quarantine restrictions in W.A. there is a 10,000 seeds limit per each variety.
Onion seed count is 240-400/g. Please stay under this 10,000 seeds limit when ordering seeds as we will have to reduce or remove it from your order. If you have any queries on ordering large quantities please phone us on (07) 5533 1177.
TAS CustomersDue to quarantine restrictions in TAS there is an 800g limit per each seed variety.
Please stay under this 800g limit when ordering seeds as we will have to reduce or remove it from your order.






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