Therefore wrote:
: Hello
: A month ago I seeded some Red Baron seed into a cold glass house border.

: They have come bounding through and now seem to have slowed down.

: Questions, will they make true onions or will they be usefull for spring
: onions.

They will certainly be useful for spring onions. The problem is they may
bolt and flower, not produce a useful bulb. However, keep a watchful eye
out and any that show signs of flowering, pick and use early.