Summer flowering shrub

[Hellosunshineatlast]

Hello expert gardeners of MN, I need your advice!

I have a gap in a west facing border that needs filling. The rest of the border is mainly perennials, although I do have a rose at one end. The gap sits between some echinops and eryngium, and I'd like a summer flowering shrub that will add structure to the border when the perennials die off. Ideally the flower colour would complement the blue/purple of its neighbours, and I'd like the foliage to look nice 'on its own'.

The spot gets sun from early afternoon in summer and is fairly well drained. Nothing that will grow much bigger than 2 ft wide, up to 3 ft tall ideally.

I've tried chat GPT and it came up with Dwarf Spirea and a few others I wasn't hugely keen on. Thanks in advance for suggestions.

Ceanothus repens
Hebe 'Baby Marie''
Dwarf Escallonia
Lavender

Between echinops and eryngium you want something that is a strong contrast. So that could be in form, shape and texture or in colour. Rather than looking for a flowering shrub I would suggest a clump of ornamental grass (which will give winter interest) or a tightly clipped evergreen ball / dome shaped shrub such as pittosporum. And if you’re able to repeat it in the border or around the garden it would look even better! Lime green would also look really lovely against the blue green of echinops and eryngium so you could go for a golden privet ball (evergreen). Then there are lots of other plants you could add to build on the lime green, such as euphorbias. Hope this helps.

I love Joyful's suggestions.

For structure and interest you could consider Stipa Gigantea, the seed heads will be much higher than 3ft but very airy you can see right through to back of border...

Otherwise perhaps a small weeping cherry? Lots of structure through winter and spring interest with the blossom before your other perennials get going... but maybe im suggesting this because I absolutely love their form...

You could try Liatris? The foliage is lovely green spikes, the flowers are visually unusual and last ages, the seed heads last all winter. Bees and dragonflies love mine. Recommend the white ( Alba ) ones for your color scheme.

Echinops and eryngium are quite similar, aren't they? Blue lollipops. So you want something contrasting, as Joyful said. Euphorbia and liatris would both be great, I think.

You could also look at a berberis. They're not really about the flowers - it's more of a shrub - the tiny leaves come out in amazing colours.

Good perennials might be achillea or geum in a tangerine colour. They can sometimes go nearly all through the summer, flowering. Heuchera don't last as long but the foliage comes in lovely purple or golden colours, so it looks good all summer.

Oh wow, some great ideas, thank you! I’ll do some research today on these.

I’d thought about another Hebe as I’ve had a few in the past and I love them, however I’ve lost a couple and would want to be sure it was very hardy. Love the idea of lime green and something that contrasts with the bluey/purple spikiness of its neighbours.

i’ve looked at Euphorbia before but was concerned that it may peak in spring? I sometimes think my garden can look a bit dull in June and July and I have to rely on annuals to brighten it up.

i’ve been looking at using grasses (particularly lime coloured) but have no idea where to start. I don’t know why I find them intimidating!

I found the same re June / July gap and am
planting more roses as a solution. Still think the bright green evergreen domes/balls are what you want and I think you’ll find them really pleasing to look at if there are a few punctuating various places around the garden.

P.s. I’m a budding (excuse the pun!) garden designer so if anyone else needs help please pm me - based in East Sussex but can do consultations online if not local.

Cistus

I find grasses intimidating too! But I think joyful is right they'd work really well. I had a browse of Jamie Butterworth"s new book 'what grows together' in my local library and what sold it to me was the fact that many of the planting combinations he suggests features a different grass, often chosen because its easy to manage with the plants around it. Well worth a look.