HI Vivian
Can I grow capers UK?
The caper plant is a half-hardy, deciduous shrub. It needs a sunny position with at least 6 hours of sun per day in summer. It needs a minimum temperature of 10°C (50°F) and is best grown in a greenhouse or well-lit conservatory. Although it can tolerate lower temperatures if the compost is kept on the dry side.
Plant on a south facing next to your property it is warm
kev