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Home > 'Summer Flowering Perennials'

'Summer Flowering Perennials'

743 products, 1 articles, 61 blogs

Agapanthus africanus 'Twister'

Here's a plant that will stand out from the crowd in your garden - the first ever deciduous bicolour agapanthus. This African lily is robust, and truly hardy in the UK meaning it's perfect in the garden border as well as in a patio container. The flowers are…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

5 Options From£7.99

despatch by end of august 2018

Berkheya purpurea

Nicknamed the 'purple sunflower', this shining beauty makes a fantastic border plant, producing a neat, ground-hugging rosette of thistle-like foliage and a striking flower stem that demands attention in any planting display. The gently prickled leaves make it a…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Pink
  • Longevity: Perennial

3 Options From£9.99

despatch by end of august 2018

Alstroemeria 'Indian Summer'

You'll love these beautifully coloured flowers set against unique bronze foliage. Perfect for patio growing, the extra-hardy plants are compact, but stems are still a good length for cutting. Long flowering from June through to November  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Orange
  • Longevity: Perennial

2 Options From£11.99

despatch by end of september 2018

Phlox paniculata Mixed

Phlox paniculata are stalwarts of cottage garden planting schemes, thriving in sunny borders and associating beautifully with other perennials. Throughout summer, large clusters of perfumed flowers are crowded with butterflies and pollinating…  More Info

  • Sun shade: full sun
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Perennial

2 Options From£8.99

despatch by end of august 2018

Short Perennial Mix

Perennials will fill your borders with colour, grace and elegance for many years with the minimum of maintenance. Some will even flower in their first year. To help you make the most of your borders, we have grouped together varieties that can be sown in…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Perennial

Just£8.99

despatch within 24 hours

Tall Perennial Mix

Perennials will fill your borders with colour, grace and elegance for many years with the minimum of maintenance. Some will even flower in their first year. To help you make the most of your borders, we have grouped together varieties that can be sown in…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Perennial

Just£8.99

despatch within 24 hours

Camellia 'Tricolour'

The result of a unique growing concept which gives the illusion of three flower colours on one plant. As the plants mature they blend into each other to stunning effect, seemingly producing an array of pink, white and red flowers on a single plant.  More Info




2 Options From£12.99

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Bumper Summer Colour Collection

Gardening on a budget just got better! For just £15.00 you can fill your borders and containers with over £60 worth of plants. The perfect way to bulk up beds, plug gaps in borders, and fill your patio pots with a full season of colour. Our Bumper Pack contains a…  More Info




Just£15.00

despatch by end of november 2018

Physostegia virginiana 'Summer Snow'

Prolific dazzling tubular flower spikes. Cutting and border  More Info

  • Sun shade: Full sun


  • Longevity: Perennial

Just£2.99

despatch within 24 hours

Penstemon cobaea 'Wedding Bells'

Grow these penstemon in your annual beds as well as your perennial borders! They're much longer flowering than antirrhinums and boast larger blooms. Easy to maintain and offering years of performance, they'll flower and flower almost all   More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Perennial

Just£2.49

despatch within 24 hours

Chrysanthemum 'Paradiso'

Chrysanthemums are renowned for their late season display of vivid colours. Flowering from late summer right through until November, Chrysanthemum 'Paradiso' is a compact variety, with neat domes of dark green foliage that become almost totally covered in…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Perennial

4 Options From£9.99

despatch by end of october 2018

Perennial Flower Border Seed Collection (Short)

Perennials will fill your borders with colour, grace and elegance for many years with the minimum of maintenance. Some will even flower in their first year. To help you make the most of your borders, we have grouped together varieties by height to help you…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Perennial

Just£9.99

despatch within 24 hours

Achillea filipendulina 'Coronation Gold'

Achillea 'Coronation Gold' is a low maintenance and easy to grow variety, which makes it understandably popular. It really is one of the best herbaceous perennials for a mixed border, with eye-catching flat flower heads of golden-yellow, it has a long   More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Yellow
  • Longevity: Perennial

2 Options From£9.99

despatch by end of august 2018

Agapanthus 'Flower of Love'

The deep blue florets of Agapanthus 'Flower of Love' are some of the darkest in the genus. Set above lush evergreen foliage, the exotic blooms make a real statement in sunny borders and patio containers, returning each summer and getting better every year.…  More Info

  • Sun shade: sun or semi shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

3 Options From£7.99

despatch by end of august 2018

Salvia coccinea 'Summer Jewel Pink'

This new mini-series of perennial salvia has so many special attributes, it's difficult to know where to start! Bred to be more compact and bushy than other coccinea types, it's multibranching habit produces masses of flower spikes which bloom in only…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Pink
  • Longevity: Perennial

Just£2.79

despatch within 24 hours

Anemone coronaria 'St Bridgid'

A showier rival to the more common Anemone 'De Caen'. The dahlia-like double flowers of 'St Brigid' are a florist-favourite, making a long-lasting cut flower display. These tough perennials offer the perfect balance of garden performance and vase…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Red
  • Longevity: Tuber

2 Options From£5.99

despatch by end of september 2018

Aster 'Lavender'

  • Sun shade: sun or semi shade
  • Grows in: Borders
  • Flower Colour: Purple
  • Longevity: Perennial

Just£12.99

despatch by end of october 2018

Hollyhock rosea 'Pleniflora'

Hollyhock rosea 'Pleniflora' is an excellent choice for a cottage garden. The hardy perennial produces bright pink, pompom shaped blooms in June and July. These flowers grow on tall spires which provide bland borders with height and structure.…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Pink
  • Longevity: Perennial

3 Options From£9.99

despatch by end of august 2018

Viola x williamsiana 'Sweeties'

The best ever dwarf Viola for containers! A unique mixture of small, attractive bicoloured flowers resembling tiny sweets. Compact plants are smothered in masses of flowers over a very long period, making it ideal for summer or winter flowering<…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Yellow
  • Longevity: Perennial

Just£2.99

despatch within 24 hours

Dianthus 'Scents of Summer Collection'

The 'Scents of Summer' series gives bright colours, strong vigour and multi-flowering stems, whilst still retaining the vintage spicy fragrance of pinks. 'Pink Peony' is the pick of the bunch, with crested blooms in glowing magenta, almost looking like a…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Perennial

3 Options From£8.99

despatch by end of september 2018

Hot Summer Colour Perennials




2 Options From£10.00

despatch by end of august 2018

Sensational Summer Perennial Collection




2 Options From£23.97

despatch by end of august 2018

Achillea millefolium 'Summer Berries' F2 Hybrid

An easy to grow, first year flowering perennial, Achillea Summer Berries is ideal for adding a sumptuous mixture of fruity colours to borders. Achillea Summer Berries makes an excellent cut or dried flower, as well as attracting bees…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Perennial

Just£2.99

despatch within 24 hours

Delphinium grandiflorum 'Summer Nights'

Attractive dwarf plants covered in a blanket of dainty midnight-blue flowers. Flowering in their first year from sowing makes them perfect for bedding borders or containers, providing a colourful display over a long summer period  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

Just£1.99

despatch within 24 hours

Foxglove 'Summer King'

Commonly known as the Strawberry Foxglove. This very compact variety produces neat flower spikes with huge, eye-catching strawberry-rose bells. A vigorous variety which is sure to make any early season garden shine, as well as attracting nectar-loving bees.…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Pink
  • Longevity: Perennial

Just£1.99

despatch within 24 hours

Dianthus barbatus 'Summer Sundae'

This exclusive blend has been specially selected to flower in the first year from seed, a completely new and exciting concept for Sweet Williams. A fantastic mixture of lightly fragrant blooms to brighten up bedding and cottage gardens. Height: 45-60cm (18-24in).  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Perennial

Just£2.99

despatch within 24 hours

Delphinium 'Summer Skies' (Pacific Hybrid)

Beautiful sky-blue flowers form tall, soft spires above neat clumps of foliage. A classic cottage garden perennial, Delphinium 'Summer Skies' is perfectly at home in sunny herbaceous borders, where it's statuesque flowers add vertical…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

3 Options From£7.99

despatch by end of august 2018

Shades of Summer' Garden Pack




Just£39.99

despatch by end of august 2018

Delphinium 'T&Ms Mix'

Cottage garden borders just aren?t complete without the towering spires of Delphiniums. In early summer, these majestic perennials produce tall flower spikes packed with evenly spaced blooms for a full and fabulous display.  More Info

  • Sun shade: full sun
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Perennial

2 Options From£6.99

despatch by end of september 2018

Bumper Plant Collection

Take advantage of this spectacular offer and transform your garden with this beautiful selection of plants. Fill a border or patio with this vibrant mix of hardy shrubs, summer flowering bulbs and cottage garden perennials, or dot them around to…  More Info




Just£71.93

despatch by end of november 2018

Heuchera 'Stormy Seas'

Heuchera 'Stormy Seas' has maroon-red foliage, with green undersides and in summer; creamy-white bell flowers on tall spikes. Heuchera are ideal perennials for garden borders, bedding schemes, or mixed summer or autumn tubs and baskets.…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Cream
  • Longevity: Perennial

2 Options From£9.99

despatch by end of august 2018

Hypericum perforatum

Hypericum perforatum is one of the less-cultivated Hypericums in UK gardens, and is rarely available in garden centres. With golden star-shaped flowers at the tips of upright stems throughout the summer, this hardy perennial makes an excellent…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Yellow
  • Longevity: Perennial

2 Options From£9.99

despatch by end of august 2018

Gaillardia aristata 'Arizona Sun'

Extremely dwarf, compact mound-forming plants become a mass of radiant red and gold large, daisy-like flowers throughout the summer. Flowers very quickly from seed, so makes a useful addition to perennial borders, or will add interest to…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Red
  • Longevity: Perennial

Just£3.49

despatch within 24 hours

Scabious 'Flutterby Pink'

Stalwarts of the cottage garden planting scheme, these popular hardy perennials are always a magnet for butterflies and pollinating insects.  More Info

  • Sun shade: full sun
  • Grows in: Borders
  • Flower Colour: Pink
  • Longevity: Perennial

2 Options From£14.99

despatch by end of march 2019

Knautia macedonica

One of the finest perennials for the border we have seen. It has a very long season of flowering lasting well into the autumn and early winter. The dense, double, pin cushion scabious like flowers are a brilliantly strong cherry red, a rare colour…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Red
  • Longevity: Perennial

Just£3.99

despatch within 24 hours

Dianthus plumarius 'Sonata'

Flowering all summer with very double, fragrant classic cottage garden pinks. Flowers 16-18 weeks from sowing.  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Perennial

Just£1.69

despatch within 24 hours