Coral bells seems like it would match well, but I'm concerned they would suffer in this really hot location -- full sun with driveway next to it. The ones I have (Heuchera richardsonii and H. parviflora) are shaded by mid-afternoon. I like the idea of cream-colored flowers.

Ruth, I agree about the color, definitely not a true red. Seems like it could clash pretty easily with a lot of things.

Maybe a muted orange of some type, like Achillea millefolium 'Terracotta'?

Carex testacea, uncinia rubra, libertai peregrina, nasella and anomathele lessoniana are all grassy things but might have hardiness issues for you. Some of the smaller flowered but very floriferous hemerocallis, crocosmia, ipomopsis, possibly some of the shrubby salvias (greggii, microphylla), panicum Warrior.

Just a handful of the top pf my head - will give it more thought.

the link should give you a good idea of color ...

https://www.google.com/search?q=Lonicera+sempervirens+%27Major+Wheeler%27&source=lnms&tbm=isch&sa=X&ved=0ahUKEwj3hovK7MrLAhWmmoMKHdedD6EQ_AUICCgC&biw=932&bih=743&dpr=0.9

understand.. deep colors like this... will look washed out at mid day.. rather than morning or evening .... its all about how wide open your eyeballs are.. as compared to squinting ... akin to how peeps had to manipulate aperture back with old SLR cameras ...

coral bells are rather early bloomers .. honeysuckle.. mid to late summer ..to my mind ... matching color in two different seasons isnt worth it ...

you seem to be going at this.. more like an interior designer.. rather than a gardener .. and all the power to you on that ...just an observation ...

i just never thought about flower color in making choices .. size.. form.. texture.. bloom time ... would all come before flower color ...

a way out suggestion .. an earlier blooming clematis.. grown together ... might be interesting ... and if a different color.. you have two colors.. in two different seasons ...

i have a vining Honeysuckle ... it goes ten feet down the fence.. each way of the spot its planted ... and its 3 to 5 feet laterally off the fence ....that make it a 20 foot plant ... how big is your trellis??? .. will it support the plant in the future???

and in the alternative... how would you train it to size.. can it be pruned severely .... annually ... i dont know.. since i have the fence ...

GOOD LUCK!!!!

ken

Ken -- L. sempervirens blooms earlier than that I believe, so depending on the Heuchera I think it could easily overlap. The bigger problem for me is that I think the site is probably too hot and sunny for the Heuchera. It might be also for the honeysuckle, but I was hoping that it would be okay if its base were sufficiently shaded by plants in front. Whatever is in front is going to get the driveway heat right in its face.

The reason I worry more about color here is that I think this might be a color that clashes with a lot of things. I don't really need color throughout the season on the trellis -- the main point is shade/privacy for the screen porch. I definitely don't want clashing colors though while the Lonicera is in bloom.

The trellis is actually three panels, made of oak -- together it's about 9 feet high and about 10 feet wide. I wouldn't put Wisteria on it, but I think it should be able to handle this vine.

Campanula suggested Nassella, maybe something along these lines, minus the Helenium or whatever the red flower is here:

https://www.pinterest.com/pin/26951297749061669/

perhaps sanguisorba. Why not helenium? A cultivar such as Sahin's Early will be flowering in July and will continue through to october if you deadhead, Purples always look good with that warm red of the lonicera (liatris, linaria purpurea and surprisingly, the acid yellow of euphorbia (characias or the smaller, but runny feather leaved one - name escapes me) can also provide a good foil.

So many plants I've never heard of in one short paragraph there. :)

Which Sanguisorba are you thinking of?

I've got no problem with Helenium. I just thought that the one in that picture above might be the wrong sort of red -- if there would be any overlap in seasons. I'll have a look at 'Sahin's Early'. I also like the look of a Helenium called 'Mariachi Siesta' at Santa Rosa Gardens. The name makes me cringe a little. Is it possible to take a siesta with a mariachi band playing?

That Euphorbia characias is pretty wild -- I like the color, not so sure about the form itself. At this point I don't have anything with much of an exotic look.

If you are concerned about a color clash Helenium 'Double Trouble' is one that I am putting in this year. It is a clear yellow.

I grow a few sanguisorbas because they made such sterling companions to grasses and umbels - obviously s.officianalis, a short form (Tanna) as well as taller species. I also grow a couple of Japanese ones - s.obtusa and s,hakusanensis and a fairly tall menziesii (althoough a couple of these were new last season). You should maybe investigate, as something of a grass lover.

I am also thinking that a US plant new to me would look well later in the summer - amsonia hubrichtii (I also love the summer foliage which sits well with carex testacea). Some of these might be more challenging for you (regarding hardiness and possibly moisture), Woodstea...and may well be easier to grow from seed, ...but I have been growing a more sustainable European version of tall grass prairies which does not require the traditional soil impoverishment of English wildflower meadows (a fail in my nitrogen rich soil) and have been looking at US natives as surprising (to me) sources of interesting plants..

I think I have Sahin's Early and they are beautiful. Care free plants. Highly recommended.

In my acid soil L. Major W is a true red with a hint of pink, but not salmon at all. I grow it with a deep red Alcea aka hollyhock, Helenium Mardi Gras, a couple deep purple Salvias, and a true yellow day lily and a pink-flowering spirea. Major W blooms from June through frost for me. There are also a few earlier bloomers in the bed that are finished before Major W starts.