Looking for experienced gardener 1 Day a Week - $25 (sebastopol)

Looking for a part-time gardener to help out my grandmother in her garden on a couple acres.
Work would be primarily weeding, pruning of bushes and fruit trees, planting and overall tending to her garden.
My grandma was a biology major and takes pride in her garden, still able to work around the yard, but needs help.
She is particular about the garden and is not looking for new ideas in terms of design.
She would prefer a female in her at least late 30’s or 40’s.
There is no mowing or weed eating, someone else does that one day a week.
Looking for someone to work one day a week, same day every week.
Flexible on the day.
Message with experience or questions.