https://shadowlands.wowhead.com/item=180731/wildseed-cradle#comments says
We need
38.99 56.96 Diary of the Night (on the elevated platform on the tree) item: 180759
39.75 54.40 Gardener's Hammer item: 180754
40.31 52.62 Gardener's Basket item: 180758
38.49 58.08 Gardener's Flute item: 180756
38.85 60.10 Gardener's Wand item: 180757

all together build Twinklestar's Gardening Toolkit item:180753
63.92 37.54 Twinklestar wil give you a buff called moonsight (334353) so you can see the cache behind him.

		"New quest completed 61074 UNKNOWN NAME", -- [3771]
		"New quest completed 61126 UNKNOWN NAME", -- [3772]

are completed in the process.