Sedum 'Thundercloud'

stonecrop

2 litre pot £9.99 Buy
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1 year guarantee

  • Position: full sun
  • Soil: moderately fertile, well-drained, neutral to slightly alkaline soil
  • Rate of growth: average to fast-growing
  • Flowering period: August to September
  • Flower colour: pink-flushed white
  • Other features: attractive to butterflies and bees;
  • Hardiness: fully hardy

    In spring each year, fleshy grey-green foliage emerges and forms a perfectly neat dome, which will add structural interest towards the front of the border. As the summer progresses these domes become looser and a mass of small star-shaped flowers emerge, usually lasting well into autumn. A wonderful low-growing perennial that is useful for pots, or for adding late colour to the garden.

  • Garden care: The flowerheads look great left during the winter to add shape and texture to your border. In February and March cut back the old flowerheads and apply a generous 5-7cm (2-3in) mulch of well-rotted garden compost or manure around the base of the plant. Once established, sedums can have a tendency to flop leaving an open and unsightly centre, especially in fertile soil. One technique to help prevent this is the 'Chelsea chop'. During the last week of May (Chelsea Flower Show week), cut one in every three stems back to the ground. This will produce plants that are less lush and flower slightly later.


Penstemon 'Sour Grapes'

beard tongue

Greyish-blue flowers with metallic sheen

£5.99 Buy

Nepeta × faassenii

catmint

Loose drifts of lavender flowers. Great for edging

£7.99 Buy

Salvia nemorosa 'Caradonna'

sage

Dazzling purple blooms

£4.99 Buy

Geranium wallichianum 'Rise and Shine' (PBR)

geranium

Intense blue for a long period

£6.99 Buy
 

The Chelsea Chop

In the third week of this month you can 'Chelsea chop' your summer-flowering perennials to delay their flowering times. Sedums can be cut back by two thirds to provide lusher foliage, but at the expense of flower.

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Bee and Butterfly Magnets

You can transform your late summer garden by adding some dazzle, which will also lure in the bees and butterflies. August is the best month of all for the painted lady, peacock and small tortoiseshell butterflies - and their presence will add extra charm.

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Colour in the September Garden (September Musings)

September is a jewel-box month when the garden begins to sparkle due to perfectly balanced days and nights. This sharp, crystal-clear light enhances rich pinks, subtle blues, golden yellows and mahogany reds and the colours seem to intensify as September

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