Description
Welsh Onion is a true perennial bunching onion and one of the oldest cultivated alliums. Allium fistulosum does not form a true bulb; instead, it multiplies from the base into long-lived clumps with white stalk bases, hollow green leaves, and mild sweet scallion flavor for soups, broths, stews, and fresh kitchen use.
Why Grow It
- Perennial Allium fistulosum bunching onion for zones 3-9.
- Cold-hardy plants survive snow in colder zones and can stay evergreen in mild winters.
- Mild sweet stalks taste like fresh scallions, while hollow green leaves add onion flavor to cooking.
- Does not form a true bulb; mature clumps can be divided for long-term perennial harvest.
- Germinates in 7-14 days at 60-70?F with steady moisture.
Growing Information
| Botanical name | Allium fistulosum |
|---|---|
| Life cycle | Perennial bunching onion |
| Mature height | 12-24 in. |
| Light | Full sun |
| Bloom or harvest window | Harvest green stalks as needed; ornamental white allium blooms after establishment |
| Seed count | 100 seeds |
| Plant form | White non-bulbing stalk bases with hollow green leaves and white allium flower heads |
| Sowing advice | Sow outdoors in spring or fall. In cold regions, start indoors about 8 weeks before the last frost, then transplant or thin seedlings to 4-6 in. apart. |
| Spacing | 4-6 in. apart for bunching onions; divide mature clumps to renew perennial plantings |
| Germination | 7-14 days at 60-70?F with steady moisture |
Best For
- perennial vegetable beds
- food forest edges
- kitchen gardens
- soups and broths
- fresh scallion harvests
- medieval garden collections
Packet Details
Includes 100 seeds. Store seeds cool, dry, and dark until sowing. Divide established clumps periodically to keep perennial onion plantings productive.
FAQ
Does Welsh onion make bulbs?
No. Allium fistulosum is a bunching onion that forms white stalk bases and divides from the clump rather than making true storage bulbs.
When should I sow Welsh onion seeds?
Sow outdoors in spring or fall. In cold climates, start indoors about 8 weeks before the last frost and transplant after seedlings are sturdy.
How do I harvest perennial Welsh onions?
Cut green stalks as needed, or lift and divide mature clumps to renew the planting and harvest thicker stems.
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