I'm reading a lot of conflicting advice about planting these out. Has anyone planted them in the border over winter and how hardy where they. I don't want to take up room in the greenhouse if it's not nescessary. I've not grown them before.
I don't know if mine were Brompton, but they were stocks and they didn't make it. The only stock I have ever successfully grown was the annual night scented one. And they weren't that good.
Brompton Stocks are grown as perennials but need winter protection in most parts of the UK - I'd keep them in a cool greenhouse.
They used sometimes to be brought on to flower in the winter by keeping them in a heated greenhouse - providing gorgeous scented flowers through the winter for decorating the Big House.
I love the scent of these when I'm in the supermarket, so I thought I'd try growing them. At the moment they're against the house wall in 3"pots. I've not tested my soil, one of the things I never get round to, but I grow Rhododendrons and also a lot of Dianthus and they are all healthy.
I grow them and for me they're short lived perennials. I too leave them out over the winter time in a well drained flower bed and have one with a couple of small flowers now. I like the shape and colour of their leaves even if they're not in flower.
In late winter/early spring they'll give good colour and flowers with a lovely scent. I usually grow a Bromptom mix. I've grown them in pots although they've not done as well as in the ground 'tho they are more sheltered.
Ahhhhhh!! Bromton stocks, ostrich plume asters, London pride, golden rod, calendulas.....Memories!