Holding Summer: Resilient Planting for Hot Urban Gardens

Perovskia ‘Blue Spire’

High summer in East London means two things for gardens: heat and pause. Growth slows, moisture is patchy, and even well-established borders can feel the strain. But the right planting – thoughtful, layered, and suited to urban conditions – will carry a garden through the hottest weeks with quiet confidence.

Here’s how I help clients plan for July and beyond.

1. Choose Plants That Welcome the Heat

Some plants simply rise to the challenge of dry soil and full sun. I often turn to:

  • Phlomis russeliana – Its velvety leaves and yellow whorled flowers bring texture and calm persistence. Even after flowering, the seedheads hold structure into autumn.

  • Perovskia ‘Blue Spire’ – A smoky, upright sub-shrub that thrives in poor soils and lights up with blue haze in midsummer.

  • Stipa gigantea – Tall oat grass with golden plumes that shimmer in the light and bring softness to hard lines.

These aren’t just drought-tolerant – they’re generous. They fill space, move beautifully in wind, and ask very little in return.

2. Mulch and Mind the Soil

Even the most resilient plants need a little support. I mulch borders in early summer with composted bark or garden-made compost to conserve moisture, reduce stress, and keep roots cool. It’s a small act with big impact – particularly in heat-retentive city plots.

3. Add Breathable Shade

Instead of built shade, I sometimes introduce loose canopies with tall, airy plants like Verbena bonariensis or Ammi majus. They filter light, support pollinators, and create microclimates below. It’s a way to soften a harsh space without heavy intervention.

My Tip:

Don’t chase constant bloom in July. Focus on form, foliage, and resilience. A calm, confident garden will always outlast a flashy one in summer heat.

🌿 Need help making your garden more resilient?

I offer planting consultations and seasonal refreshes across East London – designed to help your space thrive in city conditions, with low-maintenance planting that endures.

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The Best Shrubs for Urban Gardens

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Late-Summer Drama: Perennials That Earn Their Keep