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August can be seen as an ‘in-between’ month as high summer reaches its peak and autumn hasn’t yet set in. But don’t despair, because there are still loads of wonderful flowering plants happily doing their thing for you to choose from. So here are my top ten plants for August gardens…

Top ten plants for August gardens…

1. Phlox paniculata (perennial phlox) ‘Blue Boy’

First is an exceptionally fragrant, long flowering, short variety with lilac blue flowers. It’s perfect for the front or middle of borders in informal or formal gardens. The stiff stems mean that not only do you not need to stake them, but they also make good cut flowers.

  • Flowers in summer
  • Fully hardy
  • Grows up to 60cm tall
  • Moist but well-drained soil
  • Full shade
  • Exposed or sheltered
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2. Kirengeshoma palmata (yellow wax-bells)

This unusual woodland plant is ideal for part shade in flower borders. It is a very handsome foliage plant, and the soft yellow flowers are to be a talking point with your garden visitors. After flowering, cut down old flower stems to keep the plant in check.

  • Flowers in summer
  • Fully hardy
  • Grows up to 1m tall
  • Moist but well-drained soil
  • Full shade or partial shade
  • Sheltered
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3. Hydrangea paniculata ‘Limelight’

Not only will this robust hydrangea grow in full sun (unlike most other hydrangeas), but it also provides long winter interest with its spikes of dried flowerheads. Through autumn they put on a fantastic display as the leaves change from green to a deep burgundy-pink.

  • Flowers in summer
  • Hardy
  • Grows to 2.5m tall
  • Moist but well-drained or well-drained soil
  • Full sun or partial shade
  • Exposed or sheltered
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4. Kniphofia (red-hot-poker) ‘Green Jade’

Unlike its more brightly coloured counterparts this red-hot-poker has soft yellow flowers opening from green buds on bronze flower stems. Repeat flowering for several months, it delivers great vertical structure in the flower border where it grows up to 1.5m tall. They prefer to grow in a sandy soil, but any deep, moist, well-drained soil will do.

  • Flowers in summer
  • Fully hardy
  • Grows up to 1.5m tall
  • Moist but well-drained soil
  • Full sun
  • Exposed
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5. Aesculus parviflora (dwarf horse chestnut)

In the same family as ‘conker’ trees, but in reality, this deciduous shrub is totally different in both looks and size. In late summer, the pretty flower spikes that bloom have an exotic look that works well in both tropical and traditional planting schemes.

  • Flowers in summer
  • Hardy
  • Grows up to 3m tall
  • Moist but well-drained soil
  • Full sun or partial shade
  • Sheltered
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6. Anemone x hybrida (Japanese anemone) ‘Honorine Jobert’

Next is a very pretty, white flowering perennial that grows well in a partially shaded spot. From summer it will flower for weeks on end, often until the first frosts. It’s unfussy about soil conditions and looks great planted mid-border.

  • Flowers in summer
  • Fully hardy
  • Grows to 1.2m tall
  • Moist but well-drained soil
  • Full sun or partial shade
  • Exposed or sheltered
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7. Hylotelephium (ice plant or stonecrop) ‘Matrona’

You may be more familiar with this wonderful plant’s old Latin name, ’sedum’. They are easy to grow and bloom maroon coloured, upright flower stems covered in heads of soft pink flowers. Not only do the flowers look fantastic but they are a great plant for attracting pollinators into the garden too. Leave the seed heads on for winter interest, cutting back in late spring the following year.

  • Flowers in summer
  • Hardy
  • Grows to 60cm tall
  • Well-drained soil
  • Full sun or partial shade
  • Exposed
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8. Styphnolobium japonica ‘Pendula’ (Weeping Japanese pagoda tree)

This long lived, pretty, slow growing, small tree makes and ideal focal point for a Japanese garden. With its graceful, weeping shape and blanket of pretty green leaves turning pale yellow in autumn, it’s sure to leave an impression. Leaves often don’t appear until the end of May; older trees, after a hot summer can produce scented, creamy white flowers between late summer and early autumn.

  • Flowers in summer
  • Hardy
  • Grows to 4m tall
  • Moist but well-drained or well-drained soil
  • Full sun
  • Exposed
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9. Caryopteris x clandonensis (bluebeard) ‘Heavenly Blue’

A wonderful compact, medium size shrub with scented leaves and very pretty dark blue flowers that grows really well if planted near a warm, sunny wall. Perfectly suited to a Mediterranean or cottage garden planting scheme, the fragrance and flowers can add charm to your space.

  • Flowers in summer
  • Hardy through most of the UK
  • Grows to 75cm tall
  • Well-drained soil
  • Full sun
  • Sheltered
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10. Ageratina altissima (white snakeroot) ‘Chocolate’

Last is a plant that’s easy to care for but will still give a lot. The clump-forming perennial has deep-purple stems and brown tinged leaves. Then, in summer and early autumn fluffy off-white flowers form small balls that will keep flowering long after most other perennials have stopped doing so.

  • Flowers in summer
  • Hardy
  • Grows to 90cm tall
  • Moist but well-drained or poorly drained soil
  • Full sun or partial shade
  • Sheltered
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Fill your garden with perfumed plants and fantastic flowers and fragrance this August with my top ten plants for the month. Not only can you enjoy the blooms but pollinators are sure to love them too.

Spring is here, see my post on spring pollinators:

Or check out my Pinterest board for more ideas:

spring pollinators
Spring pollinators
Pinterest
Pinterest Board

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