3 months ago i planted some roses. They have only just started to shoot new leaves, and are extremely slow coming out. Some of the older leaves are yellowing. When i bought them, they all had a lovely show of roses and once they died, they have not come back.

What can i do to help them flourish.

I would wait for someone to back me up here, but my understanding is not to expect them to bloom their first year after planting. They are working on establishing a sound root system and should bloom next year.

Good Luck