Late-Summer Drama: Perennials That Earn Their Keep

Late summer is a make-or-break moment for planting schemes. Many gardens fade after July — but with the right perennials, borders can stay vibrant, structured, and full of interest right through to early autumn.

Here are three standout performers I return to again and again:

Agapanthus ‘Loch Hope’

Tall, elegant stems topped with rich violet-blue flowers. Agapanthus brings clarity and rhythm to summer borders and thrives in pots as well. It’s drought-tolerant, dramatic, and low-maintenance — the kind of plant that earns its space.

Coreopsis verticillata 'Moonbeam'

A compact, long-flowering perennial that produces pale lemon-yellow, daisy-like flowers with darker centres from July to September. Its finely divided, fern-like foliage provides a delicate contrast to the bright blooms, which attract bees, butterflies, and other pollinators.

Oenothera lindheimeri (White Gaura)

Delicate, airy flowers that flutter in the breeze. Gaura is brilliant for adding movement and lightness to borders. It copes well with dry soils and lends an informal, meadow-like quality to structured planting schemes.

Tips for integrating late-summer perennials:

• Combine height and softness by pairing Agapanthus or Coreopsis with ornamental grasses.

• Plant in odd-numbered groups (3 or 5) to create rhythm and balance.

• Cut back lightly after flowering to encourage a second flush or tidy structure for autumn.

Want to bring more life to your borders?

I offer seasonal refreshes and planting consultations to help keep your garden interesting all year round. Whether you need a few additions or a full rethink, I’ll help you get more from your space — without starting over.