By Punsa
Lancashire,
United Kingdom 
When is it time to repot my standard roses into bigger pots, not done much this year.
17 Jul, 2017
Answers
Long term, they will need tubs at least 70 cm wide and deep to support them.
18 Jul, 2017
If you must, then I would repot in the late autumn when the plants are dormant. Although, best to re-plant them in the ground for best results.
17 Jul, 2017