Am I correct in thinking that this kind of thing is climate specific? (Can anyone from the UK comment?)I think he's referring to putting short plants among tall plants. Another example would be cabbage (short) and tomatoes (tall)
Carrots and peas are a classic
My albeit limited experience tells me that in my damp, Scottish, slug-friendly climate you need to give plants more space? When it's very hot it's great to have all those plants packed in helping to retain moisture, but here in Scotland we have a couple of weeks of really hot weather - most of the time it's damp or raining and the plants need plenty of air circulation.
Is this a fair comment or am I avoiding crowding unnecessarily?