Yikes!! Dem some long roots!!!

[Iamhanuman]

you sure are a mighty fine bunch of cobs
i have put the tubes in a tray with water so the blighters can have as much as they want

[HayleyB]

Thats probably the best idea, sweetcorn hates having its roots tampered with or moved and trimmed . I sow in 3" biodegradeable pots sitting in a tray that can hold a bit of water then the whole pot only gets moved when it's being planted out.

[Oleander]

Mine were in toilet roll tubes too, and when the roots appeared through the bottom, I decided it was time for them to go out. That was two weeks ago, when they were about 2 to 3 inches high. I hope I haven't jumped the gun - I think they should be OK as it's been pretty warm here, and they have each got individual plastic bottle cloches on them at the moment. They haven't grown a huge amount since they have been outside, but they look pretty healthy.

[Iamhanuman]

i've read 6 inches before going out
but not sure if that has to be stuck to or not?!