Maybe he can re-design a bit of the garden?
I don't know how big your acreage is but when I was a gardener, I had to move things most years as the soil got exhausted (I usually put spuds and clover in .)
I particularly loved designing a rockery and choosing what plants to put in. I got handsome young men to bring in the rocks - I just did the good bit and planted to flowers. It was only 2m by 1m but I loved it.
Is it me or am I getting mixed messages
Kate Garroway-Care at home costs