{{{HUGS}}} to you Pegi....one day at a time....even if it's only 15 mins.....it will get done
I love the idea of a "memory garden"....how about maybe saving a few of the car parts and include them in the garden since that seems to be something he enjoyed... here's a few ideas for you!!
I hate losing plants....I know they are "just plants" but when you nurse them along and baby them and get them to grow, bloom, and be pretty and they die....it's like losing a friend.....