Here is my rough draft. Not sure I love the shape but not sure what else I can do.

that ought to be bright enough shade for the DL.. and shade for the hosta .. never forget.. hosta are shade TOLERANT ...

is that bump out a fireplace... do we need to stay away from that exhaust??? ...

i would start.. by having you define how deep the beds will be ... i would go to at least the shade edge.. and note that the sun is basically at its highest.. so the shade will be getting bigger in a few weeks ...

how do you mow the lawn.. that machine should define the eventual shape .... so use making a bed thats impossible to cut easily ... been there.. done that .. lol ...

i would also highly recommend plant placement.. so that you can walk along the house for window cleaning.. etc ...

i think i see a chair and pad.. is there a patio to the right??? .. if so.. incorporate it into the bed design ...

as you can see ... theres a lot to think about.. before you even worry about what plants ...

i'd also plan on having the beds already to go.. for transplanting the plants in sept or so ...

ken

Thank you! Yes, the bump out is a fireplace so not sure what can go there. I wanted something tall. My hosta do great in mid-late afternoon sun. I am hoping the sedum will be ok in just afternoon sun. I have one in part shade that does fine. You are correct, cement patio to the right.

A single smooth sweep of a line (curve or straight) looks better to my eye than wiggles in and out that don't have a reason such as a tree or shrub that need more width. As far as bed depth, I try to make beds a minimum of 5'-6' deep so I can have more than one plant front to back for a longer season of bloom and bigger masses for more punch. I think I would make it overall less wide and more deep unless there is a budget for more plants so you can have a front row and a back row.

I also leave at least a foot between the plants and the house wall to accommodate snow and rain falling off the roof edge as well as the rain shadow created by eaves. It also allows the house siding to dry out and room to get in for maintenance as needed without tromping on plants.

Try to plant things with similar needs for light and moisture, so that they are happy together. You have a variety of leaf shapes and some foliage color, which is good since it adds interest when things aren't blooming. I wouldn't alternate the hosta and sedum since sedum is happiest with a lot of sun and not too much water, while the hosta doesn't like to dry out and prefers at least some shade during the hottest part of the day. So I would group the sedums in the sunniest spot and group the hosta in the shadiest spot or at least where you can water them well when it is hot without rotting the sedum. I would most likely skip the grass as it has similar leaf form to the day lilies, but I am not a huge fan of grasses anyway because I like them better en masse rather than as specimen plants.

What is the thing on the chimney? An air intake or something that might be venting hot gasses or something that needs access or do you want to sort of hide it? Are you looking for something tall to plant in front of the chimney and that is why you were looking at grasses?

If this area will be viewed at all in winter, or even late fall or early spring, you might want to add plants that will be pleasant to look at when the perennials aren't growing, either some shrubs with evergreen leaves or interesting branches, or evergreen groundcover, or bulbs for spring bloom.

Look up the expected width of your particular plants and give them enough room, even if it looks sparse at first. You can fill in with seeded annuals or garden ornaments and be sure to mulch between plants to discourage weeds while you wait for the perennials to fill in.

Yes, the bump out is a gas fireplace vent. I did want to hide it but not sure what type of evergreen would be nice there instead of a grass.

The problem with a gas fireplace vent is that you wouldn't want to grow anything tall at all near to the vent since the hot and acidic gasses wouldn't be healthy for a plant. I can't imagine that dead leaves would be more attractive than the vent. Perhaps a metal trellis with a vine that doesn't grow as tall as the vent would provide distraction?