On 17/07/2018 15:22, Jeff Layman wrote:
On 16/07/18 23:12, Andy Parker wrote:

I'm in Cumbria almost at sea level.

Does that mean sea level as on the coast, or sea level inland? It would
make quite a difference in Cumbria, as many more plants that would not
survive the cold inland would do so on or near the coast. But wind and
salt spray would be a factor to consider on the coast.

As in many other cases, have a look around in other gardens nearby to
see what is growing well, and what is not. That should give you an idea
as to what plants you would be wasting your time (and money!) on trying
to establish, and what might be worth a go.

I'm on fairly heavy clay (which is beginning to fracture like brick in
the heat). The foolproof things that can take care of themselves and are
not too invasive I think he might stand a chance with include:

Cornus
Euphorbias
Buddleia
Honeysuckle
Sedum Spectabile
Paeony Rose

Lavender does OK for me in N Yorks but is tetchy about drainage.

Valerian, Centranthus ruber, is a bit of a thug. But good for
butterflies. It might be high maintenance keeping it under control.
(OK so long as you keep dead heading but seeds profusely)

Depends a bit on budget and what plants can be obtained as cuttings from
friends and family and other volunteers.

--
Regards,
Martin Brown