My very sincere condolences to all in the family. My mother too loved gardening and singing. Losing her and my dad, I rely on God's promises at Rev 21:3,4. Death and sickness will be no more, here on earth! You may like to review the 'Awake" no 3, 2018 (Help for Those Who Grieve) found on JW.ORG.
Again, my deepest sympathy!