Posted: 28/10/2015 at 19:57
Dipadee, they take a minimum of 2 years to fruit. Mine are planted in the ground after spending the first year in pots and are now 3yo and only produced their first flowers this year, but rather late in the season so no fruit has set. They do tend to grow long whippy shoots and you can cut those back by half in the summer according to the RHS - more here:
All I'll say is they get one more year in my garden and if they don't pull their socks up they will be consigned to the compost heap!