Some option

May be with native plants.

You have gorgeous shade and handsome trees in a hot climate. Work with that. And plants lined up like soldiers won't be appropriate for the look. A good local nursery should be able to suggest plants that will appreciate the conditions. If there is not such a place, start researching.

I might also consider removing the two lowest limbs on the tree on the right. But I'd make that decision only upon seeing it in person.

Celery - Thanks for the visual.. Not sure that I would go with rows of plants, but it does help to see something in place.

Laceyvail - yes, the bottom limbs need to go. That one over the driveway is fairly low when it's laden with leaves - we just kept it for so long because it shaded our west facing garage somewhat.

I do have access to a few fabulous local nurseries and have options for plants. I think I'm just looking for the architecture of the landscaping - meaning something tall in that spot, etc. I really don't know what to do with that 17' long blank wall of my garage. One neighbor put a very large metal art piece on theirs. I used to have Edward Goucher Abelias, but lack of sun, then winter storm ended them.

On the North outside corner (left as your looking at the big picture) there used to be a Yaupon, but it was planted too close to the house, so we took it out. Now I just am not sure what to put in its place. And my porch is 8' deep, so that makes that space almost like a little courtyard. It's the evergreen that I'm struggling with. And I think I'm going to take out that Dwarf Burford - it's just in the wrong spot.

Here's a better pic of that front section by the garage.

Uh oh! I really meant the tree on the left! You'll still have lots of good shade but lifting the canopy will make the area feel less "heavy."

Some taller shrubs to consider to soften garage wall - Mahonia aquafolium, Butterfly bush (provided it gets plenty of sun). Basic design is taller shrubs in the background and against the house but not as a hedge. Medium shrubs then tier to lower shrubs in the foreground and along sidewalk. Break up spaces with accents like sizeable boulders with accent grasses (Red Yucca, Pink Muhley). Smaller accents grass like shrubs include LIriope and Thubagacea (society garlic). Groundcovers - Sedum (cold hardy types like Red Dragon and Lemon zinger) along with Ajuga.

I would not just buy whatever a nursery says would grow well in the shade or sun or whatever. You need a design prepared to establish the placement. A good garden center should have a service to provide that or at least a paid consultation. If not hire a local landscape designer.