I've got 2 in a 35cm wide x 35 cm deep pot. They are now just growing over the width of the pot and the first courgettes are now 10cm long. Make sure you water them regularly and maybe give them some tomato fertilizer once a week when it starts flowering.
They look ok to me as they are, Mameha. Keep picking the outer bigger leaves, more will follow from the middle. They may flower, mine are starting to, but I just snip the flowers off.
Same as for potatoes, NewBoy, about 8-12".
It's a foxglove, baza. If you want them in your own garden, collect the seeds.
Strangethingie, could it be that your squashed "butternut" is actually a Squash?! I'd let it get on with it and wait for the surprise!
Could it be this one, Stanley?
I find it easiest to cut the plastic pot open, then repot as mentioned above.
Lovely plant, Yarrow. It appears to have several names. Have a look here for how to care for it:
What a great video, Simon! Enjoyed it very much!
I have a few orange and yellow calendulas scattered about in the borders (self seeded mostly). Their bright little flowers are so cheerful and lighten things up.