The toughest and most reliable form for Scotland is the basic Prunus subhirtella
autumnalis although if you want a weeping tree, go for Pendula Rosea.
IF you see a small garden tree with soft white or pink flowers over the next few weeks, don't be too surprised - it is almost certainly the autumn flowering cherry, Prunus subhirtella
And if you have the space, there is a lovely winter flowering cherry called Prunus subhirtella
There is also a good showon the winter cherry, Prunus subhirtella
Autumnalis, this has been flowering on and off throughout mild periods during the winter and, as we enter the spring, it is having a final fling.
The winter-flowering cherry, Prunus subhirtella
Autumnalis is a marvel.
You could also try the winter flowering cherry Prunus subhirtella
autumnalis which is available in white and pink.
Others plants to consider are the evergreen mahonias, many of which also have scented yellow flowers in winter, Prunus subhirtella
'Autumnalis', various dogwoods (Cornus alba), and ornamental grasses.
There is also a flowering cherry tree, Prunus subhirtella
Autumnalis, with a scattering of pale pink flowers all over the branches.
Even with snow on the ground, you can count on the winter-flowering cherry, Prunus subhirtella
Autumnalis, the almond-scented Viburnum x bodnantense Dawn, one of the witch hazels and a dwarf daphne or two.
COOL CONTENDERS: Prunus Subhirtella
Autumnalis (top), the hardy pansy (below left) and Chinese Witch Hazel
Others plants to consider are the dogwoods (Cornus alba), evergreen mahonias - many of which also have scented yellow flowers - and for a small tree, I'd recommend Prunus subhirtella
Although I'm mourning the loss of my autumn-flowering cherry prunus subhirtella
'Autumnalis', this lovely cherry normally flowers from September through to March.