Posted: 16/06/2015 at 12:17
Right, Lilly......those patio sweet peas will need a weekly feed of a high potash feed (this encourages flower production). Some report good results using 'Tomorite', this is of course a high potash feed, although there lots of alternatives.
Regarding those in the garden, much depends how much preparation soil preparation was done before planting out. I deep dig & add well rotted manure in the winter, so they require little in way of feed during the flowering season.
Judging from what you say, I would guess that both of yours would benefit from a feed of liquid seaweed just now.