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As summer transitions into autumn and the days slowly shorten with nights getting longer, there is still time to extend the summertime feeling in your garden with these brightly coloured flowers and foliage for interest this month. So, here are my top plants for September…

1. Clematis ‘My Angel’

First up, the nodding flowers of this deciduous climber make it a late summer spectacle. The bi-coloured flowers bloom on burgundy stems and are followed by fluffy silver seed heads later in the summer. These climbers are fast-growing and will thrive if the previous year’s growth is cut back to 15cm above ground level in early spring. Following this with an application of slow-release fertiliser and a good mulch with garden compost will help them thrive.

• Flowers in summer and autumn
• Fully hardy
• Grows to 3m tall and 1.5m wide
• Well-drained
• Full sun or partial shade
• Exposed or sheltered

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2. Helenium (sneezeweed) ‘Sahin’s Early Flowerer’

The fiery orange flowerheads that bloom in summer and autumn are daisy-like and will look great in any sunny flower bed or border with moist but well-drained soil. They’ll be right at home in a cottage garden where the pollinators can enjoy the flowers too. These upright perennials will appreciate a bit of support if they need it.

• Flowers in summer and autumn
• Fully hardy
• Grows to 1m tall and 50cm wide
• Moist but well-drained
• Full sun
• Exposed or sheltered

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3. Pennisetum alopecuriodes (Chinese fountain grass)

A stunning ornamental grass for soft texture, making it ideal for rustling in the breeze in coastal style gardens. In spring the foliage is green, with purple coloured bristly inflorescences in summer and autumn. Hardy in coastal and mild areas of the UK, they may need a bit of winter protection in chillier areas.

• Flowers in mid-summer to early autumn
• Hardy in coastal and relatively mild parts of the UK
• Grows to 1.5m tall and 1.5 metre wide
• Well-drained
• Full sun
• Sheltered

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4. Dahlia ‘Hamari Gold’

The giant golden-yellow flowerheads of this dahlia are sure to supply a pop of colour to your autumn colour. The flowers grow to 25cm wide, and their ruffled effect will bring much joy to containers in courtyard and city gardens as well as being great cut flowers to bring their joy indoors.

• Flowers in summer and autumn
• Hardy in coastal and relatively mild parts of the UK
• Grows to 75cm tall
• Moist but well-drained
• Full sun
• Sheltered

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5. Rudbeckia hirta (black-eyed Susan) ‘Toto’

The cheery golden-yellow flowers of ‘Toto’ in summer and autumn will be pleasant to you as well as butterflies, who love the open flowers. The chocolate brown centre contrasts beautifully with the petals for a dramatic impact that looks lovely in a mass display. Easy to grow and trouble free, by removing the spent flowers it will extend the blooming period.

• Flowers in late summer and autumn
• Hardy in coastal and relatively mild parts of the UK
• Grows up to 25cm tall
• Moist but well-drained
• Partial shade or full sun
• Exposed or sheltered

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6. Sedum spurium (crimson stonecrop) ‘Tricolor’

Sedum spurium ‘Tricolor’ is a semi-evergreen low growing creeper, providing variegated colour from its fleshy leaves all year round. In summer, pink star-shaped flowers bloom complementing the pink and white margined leaves. Perfect for a gravel garden or rock garden, they will happily thrive with no pruning needed.

• Semi-evergreen with flowers in summer
• Hardy in most places throughout the UK even in severe winters
• Grows up to 10cm tall and 50cm wide
• Well-drained
• Full sun
• Sheltered

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7. Liatris spicata (button snakewort)

Ideal for a wildlife garden, the button snakewort will add height and interest to your border with the purple-pink flower spike that blooms on top of its narrow stem. Loved by bees, butterflies and beneficial insects for its nectar and pollen rich flowers.

• Flowers in late summer and autumn
• Fully hardy
• Grows up to 70cm tall
• Moist but well-drained
• Full sun
• Exposed or sheltered

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8. Festuca glauca (blue fescue) ‘Blaufuchs’ or ‘Blue Fox’

For brilliant blue in your garden, blue fescue will give colour, structure as well as add to the soundtrack of your garden as it whispers in the breeze. The needle-like foliage is joined by panicles of green flowers in summer, and it will have a great impact in rock gardens.

• Flowers in summer
• Hardy through most of the UK
• Grows up to 50cm tall
• Well-drained or moist but well-drained
• Full sun
• Exposed or sheltered

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9. Acer palmatum (Japanese maple)

There’s a Japanese maple for every garden, even tiny spaces as they grow well in containers. Their colours are spectacular throughout the seasons, with green foliage in spring and summer, turning fiery reds and oranges in autumn.

• Spectacular foliage from spring to autumn
• Full hardy
• Grows up to 8m tall
• Moist but well-drained
• Full sun or partial shade
• Sheltered

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10. Berberis thunbergii (Japanese barberry)

Finally, this compact shrub with red and orange leaves in autumn before falling, these are joined by glossy scarlet red berries. What’s more, these low maintenance shrubs can be used practically as hedging and screening and fit many garden styles from coastal to cottage.

• Flowers in spring and colourful foliage from spring to autumn.
• Fully hardy
• Grows up to 1.5m tall
• Well-drained or moist but well-drained
• Full sun or partial shade
• Exposed or sheltered

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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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