Posted: 14/03/2016 at 17:37
You can double up the fabric if it's lightweight stuff Jack, but it might be worth investing in some of the heavy duty stuff so that it lasts longer. You can then plant some shrubs into that (if you want some greenery) and they will be low maintenance.
As for turfing - you'd need a fair bit of prep before laying it as the ground won't be brilliant after being under the gravel, so it really depends whether you feel it's worth it. Grass can be quite high maintenance if you want it looking good, so again, it depends on the amount of time you have to spend on it. A nice piece of lawn is lovely so you may want to do half and half. You'll get plenty of advice re prep if you decide to do that
If you want your mum to have a nice place to sit, you might want to consider a simple screen of trellis or posts and wires which you can grow some climbers on to give privacy -enough for a seating or ding area. You could have permanent planting like roses or clematis, or annuals like sweet peas (nicely scented) and you'll get plenty of help with that kind of thing on the forum too