I am going to grow pea plants on my allotment in 5 metre rows. The thing is ia am planting 740 pea seeds and could do with ideas to support them. There are 4 different types of pea. Two of them grow one metre but the others grow 3 metres high. Mind you my allotment should be colourful I am growing yellow abs giant mange tout Purple Beans, potatoes, artichoke and cauliflower.