Posted: 28/03/2015 at 22:38
As previously said they'll have been raised in GH conditions, but care for roses is similar however they are grown. As they are potted they can be planted at any time of the year. If you plant in the garden right now they'll need hardening off first for a few weeks so sheltered but not frost free as they'll need to toughen up a bit. You'll lose the blooms, but if going in the garden, they'll need pruning back anyway. That will give you flowers this summer. If you decide to grow them on in pots outside, I'd follow the same as above, harden off prune back feed and mulch water frequently, at least weekly. If potted go for John Innes No3 as the potting medium. Add rootgrow and bonemeal when doing either, the results when using them are significantly better than by any other method.