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Japanese bunching onion

Japanese bunching onion should not be confused with spring onion or chives. Japanese bunching onion belongs to the onion family (Allium).

Also known as:
Welsh onion (Allium fistulosum). Same name different variety; Allium fistulosum lacks ‘giganteum’.

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Japanese bunching onion, photo: Rafael Ortega Diaz - CC Public Domain

Japanese bunching onion – (Allium fistulosum var. giganteum) should not be confused with spring onion or chives. The summer variety can be pre-sown under glass (greenhouse, windowsill) as early as February. Harvesting can be done in June.
Japanese bunching onion is hardy. Harvesting can take place from the beginning of June. You can simply leave the Japanese bunching onion as it will thicken a bit. Japanese bunching onions can stay in the ground for a summer. Do harvest out the thickest in the row in between, so that the remaining onions have room again.

Bugs

recognize leaf damage caused by thrips
Leaf damage caused by thrips, photo: Swapnil.Karambelkar – CC BY-SA 3.0

Shiny spots on leaf, on the underside are insects: thrips (Thysanoptera).

Leaf yellows, dies, plant rots away: onion fly (Delia antiqua).

Fungi & diseases

Bulb and/or plant rots away from top to bottom: neck rot (Botrytis allii).

Other

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