More stuff to work in.- Grok came up with some of this.

• Lantana (Lantana camara)

• Description: A hardy, drought-tolerant shrub with clusters of colorful flowers in shades of pink, yellow, orange, or purple that bloom nearly year-round in warm climates.
• Beachy Appeal: Its bright, tropical blooms and casual growth habit evoke a coastal feel.
• Care: Thrives in full sun, requires minimal watering once established, and is pest-resistant.
• Complementary Features: The vibrant colors pair well with the pink oleander and the purple hues of Chinese fringe, while its relaxed form softens the structured look of yucca.
• Zone: 9a/b hardy.

• Sea Lavender (Limonium perezii)

• Description: Also known as statice, this plant produces airy clusters of tiny, papery purple or white flowers atop slender stems, with leathery green leaves.
• Beachy Appeal: Its soft, wispy flowers and salt tolerance mimic coastal dune flora.
• Care: Extremely low maintenance, drought-tolerant, and thrives in sandy, well-drained soils.
• Complementary Features: The delicate flowers contrast with the bold yucca and foxtail fern textures, enhancing the garden’s coastal charm.
• Zone: 9a/b suitable.

• Blue Daze (Evolvulus glomeratus)

• Description: A low-growing, spreading perennial with small, vibrant blue flowers and soft, silvery-green foliage.
• Beachy Appeal: The soft blues and sprawling habit evoke the relaxed vibe of a beachside garden.
• Care: Requires minimal watering, tolerates heat, and blooms continuously with little care.
• Complementary Features: Its low height contrasts with the taller oleander and fringe plants, creating a layered look.
• Zone: 9a/b hardy.

• Society Garlic (Tulbaghia violacea)

• Description: A clumping perennial with slender, grass-like leaves and delicate lavender-pink flower clusters that emit a mild garlic scent.
• Beachy Appeal: The soft, grassy texture and subtle flowers resemble coastal grasses.
• Care: Drought-tolerant, low-maintenance, and resistant to pests and deer.
• Complementary Features: Its fine texture balances the bolder yucca and foxtail ferns, and the flowers echo the pink oleander.
• Zone: 9a/b compatible.

• Agave ‘Blue Glow’

• Description: A compact, rosette-forming succulent with striking blue-green leaves edged with red and yellow.
• Beachy Appeal: Its sculptural form and coastal-native agave relatives give it a seaside desert vibe.
• Care: Extremely drought-tolerant, requires minimal care, and thrives in full sun.
• Complementary Features: Pairs beautifully with the color guard yucca’s bold variegation and adds a structured yet beachy element.
• Zone: 9a/b hardy.

I don't know why you'd put any gravel anywhere. Equally, you should get undyed mulch. If it's black, fine. But specifying a color often means it is dyed. Why add dye to a natural product? Natural mulch around here is a fairly dark brown.

I'm a big fan of native plants and I'm not convinced much of that is native.

I might put 2 purple fringe plants to the left, not 2 green ones.

I'm in Z6, so can't comment on whether these are good choices for Z9.

As for the rest, it does seem like your plan has a nice balance of repeating colors and plants and contrast with different colors and plants. As you've photoshopped it, it's a good fit with your house, too.

I grew guara in Southern California USDA zone 10b, and that plant reseeded and overtook everything in the vicinity.

Maybe in your USDA zone 9 that plant is better behaved. I would double check if your designer has had personal experience with guara in your zone — no nasty surprises that way.

I’m a long ways away from your zone too so I have no comment about plant choice.

The choice of gravel/black mulch seems ill-advised in a hot climate. Both will exacerbate your heat and roast your plants.

IMO, the trellis seems contrived and amateurish.

What is the reason for the individual plants on the right beside the paving? They seem to be plonked into the lawn rather than in a bed. They look random and a mowing nightmare. Certainly not low maintenance. Why not just extend the bed along there? Leave a way through for foot traffic between paving and lawn.

I agree that there's no reason for using gravel, especially combined with mulch. Sounds like a recipe for a mixed up mess and maintenance problem. Also agree to repeat the purple Loropetalums on the left if you're trying to keep a balance on each side.

The trellis is a good idea to fill the empty wall but that particular design looks too emphatic. The trellis against the wall doesn't need a separate pediment imo. That is already provided by the roof line. It looks top heavy.

How high are the window sills? Make sure the shrubs chosen are cultivars which will stay below them while keeping their natural shape without needing regular pruning. And when all is done avoid clipping the shrubs into blobs. Good luck!

Another vote against gravel and the black mulch. Undyed mulch is always preferable and compost as a top dressing is even better, depending on whether your soil will benefit from it.

A good start and thanks for showing us! The pine straw seems a perfect solution. I don’t think you need anything else.

The thumb-shaped grass extension looks odd and hard to mow. I’d get rid of that and smooth the corner out.

I don’t know what the plants are along the sidewalk but I hope they don’t grow much.

Thanks @littlebug Zone 5 Missouri - I appreciate the feedback.

"The thumb-shaped grass extension looks odd and hard to mow. I’d get rid of that and smooth the corner out."

I'm not exactly sure what you mean, but I think that's just a bad photo angle - the entire bed has a curve and there's nothing that will make it difficult to mow and then trim along the border.

The foxtail fern and pink guara along the sidewalk were suggested as good candidates along the path.

This project has been a while in the making, so I'm feeling extra satisfied to have it done.

Ah! You’re right. I see now that the foxtail fern looks like grass extending into your bed in a thumb shape.

I’m not familiar with that plant. I hope it works well for you.

It turned out nicely and will look great when the plants have filled out and maybe you add a few more. I think the trellis is a perfect solution to the blank space between the windows and will stand out much less as the plants grow and cover it. Pretty house!

I think everything looks nice. I like pine straw much better than mulch. It does not float in the rain! It will flatten out a bit more.

Thank you all.

OK - I've posted these pictures before, but when @Olychick said the very simple words "Pretty house!" it really hit me.

This is what we purchased 4 years ago:

This is what we were living in 18 months ago:

And now my house is pretty! Especially to me!