On 24/05/2020 22:27, Nick Maclaren wrote:
If your soil is even half-decent, it will grow perfectly well. That's
required only for clay and other unsuitable soils - at least most
clematis like good drainage, a deep root-run and reasonably fertile
soil.

Thanks all - it _is_ clay... I'll dig deep. It can have some of the
not-yet-rotted-properly stuff from the Dalek in the bottom.

OTOH I've run out of weekend...

Andy