Topic: spring onions

[sunflower]

Want to have a go at growing these over winter in my greenhouse. Going to try White lisbon i was just wondering whens the best time to start sowing will they be ok in a container & what sort of compost? loads of Q, but not done this before.

[bennettsleg]

I sowed some outside a good few monthsago before the wet spell with no special treatment (compost, feeding, watering etc) and they're weathering the heat quite well.
The back of the packs (at home) say that they can be sown from July to September successionally. They need to be weed-free to flourish. I would have thought that in a greenhouse environment they'd do quite well provided they don't dry out when young.  I'm going to sow some tonight (in the ground) and provide sun shelter and a water trough to the side and will try to remember

[tim]

Start them 10 to a plug & put out into a good compost?

[RSJK]

We always made a sowing in the fields for over wintering around September 6th, and they were white lisbon, sowings were made at a thicker setting then for the summer ones.