Pruning a Double Kerria

We planted a double kerria in July 2017. This year I notice a circle of new growth about 20 centimeters from the original clump. Should I remove this new growth and the suckers supporting it and if so, how do…

Kerria blight

Have removed the diseased Kerrie. Is it safe to place any other plants in the soil. Should the, soil be treated in some way before planting?…