Susan Mulvihill is a local author and expert on gardening in the PNW.
https://www.susansinthegarden.com/
Master Gardener Foundation of Spokane County offers valuable information on request
https://www.mgfsc.org/
The Friends of Manito support the lovely Manito Gardens. Find great plants for your garden at their twice-yearly sales
https://thefriendsofmanito.org/