Beginner Gardening: New property, new challenges, new unknown plants, 3 by montanadolphin

montanadolphin wrote:
Pic 1: I'm assuming this is for water circulation in the pond. Can't find the power switch, but there is water in it with some sort of grass growing inside as well.
Pic 2: Another view of the water box...dunno what you call it. You can also see the jap maple on the left, and some sort of water plant in the pond.
Pic 3: Part of the landscaping in the water pond area. I guess that's a juniper shrub or something (blue berries) used as ground cover.
Pic 4: There are lots of daffodils popping up from under the ground cover.
Pic 5: Another view of the landscaping behind/next to the pond. Those saplings are Tree of Heaven, and I dug them out last evening.