Sweet Pea - how sweet is it?

Sweet Pea... could be sweeter!
It germinates easily enough (70:30 is my seed success ratio) however...
- if I don't keep a watchful eye on it, I suddenly end up with a giant, knotted mess;
- it has to be deadheaded weekly to keep it flowering well.

This heritage variety is very sweet smelling and I love the colour. I have it growing in a pot up a metal trellis.

Variety: Sweet Pea Old Spice Mixed (grandiflora), Hardy Annual, Mr Fothergill's Seeds, 30 seeds, £1.85.