November to February
If you are buying roses between November and February, field grown or bare root roses are available and there will be a small number of freshly potted ones too for people who might not be able to plant the bare root ones quickly enough or who want to give it as a gift. However, bear in mind that there is an ‘end’ to the field grown season and that choice of these becomes limited as roses are potted to keep sales going all year round.
If you buy a potted rose at this time of year, it will not have leaves or buds and won’t have been in its pot for long enough to develop its roots, so taking it out of the pot to plant it in the garden could mean most of the compost will fall away. This is not a problem, plant it in the ground, together with the surplus compost, and in a few weeks it will grow away strongly. However, you can always leave it in the pot for a couple of months and the roots will begin to fill the pots.