Definately with perlargoniums. They get huge if given a really big pot. If kept from year to year they grow massive. I have a small poinsettia on my kitchen window ledge.....it has kept all its red bracts and is now growing some new leaves too. When the orchids get fed it gets some too. The pot is tiny. I understand they are huge plants in their normal places. My neighbour, who gave it to me before Xmas, is amazed it still has leaves and bracts. Think Bonzai for the opposite situation, and that tiny trees cling to life in inhospitable places.

I have always believed that...plants ideally like to be free and outside.

Interesting link, novel use of MRI scanning! Also applies to areas of soil outside which are enclosed, presumably, such as a solid bottomed raised bed.

Just think "bonsai"

Ive done lots of experiments with plants many moons ago using the same plant from the same batch of cuttings or seedlings. Some were restricted in pot size but still given ample water and feed, some were restricted in feed only in a small pot and some were allowed to grow unchecked in the ground. The results were quite amaizing with how you can keep a plant small by limiting its water intake and pot size.

True Snoop - they really do better with some water!

Sadly, though, I understand that goldfishes'
internal organs carry on growing, which is why those in small tanks do not live as long as those in ponds.

You mean some brainy professor has just discovered what the whole gardening world has known for ever and is probably getting paid to come up with that conclusion?

Anyway, Hendrik should have tried different composts for his test and then given us MRI scans on how his plants grow in them.

Gobbledygook of the highest order....

I often wonder,these days, where the funding comes from to research the bloomin obvious? Why is it so often wasted on such projects? Come to think of it; in my days in the community doing house visits, there was a black fish that grew very large over time, where this rule didn't work!! All the other fish and vegetation vanished. I suspect the nearest lake got an addition, as with turtles.

If any of you listen to the 'Today' programme on Radio 4 they fill the slots with a lot of waste of time and money science projects telling us the obvious. With regard to the article though it is surprising, to me, how big some trees will grow in tiny pots.
Sunday Sport (which I don't read by the way): Scientific studies reveal, 'Black fish eats fisherman'. Gardening community forms hunting party. Large dark green slug with fins stalks our gardens, believed to be cross between Spanish slug and escapee fish. Large dark green slug with fins mates with New Zealand flatworm. British gardeners leave country.