Penstemon 'Sour Grapes' M. Fish

3 × 9cm pots £20.97 £18.00
in stock (shipped within 3-5 working days)
9cm pot £6.99
in stock (shipped within 3-5 working days)
Quantity 1 Plus Minus
Buy Penstemon 'Sour Grapes' M. Fish beard tongue: Greyish-blue flowers with metallic sheen

This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.

  • Position: full sun or partial shade
  • Soil: fertile, well-drained soil
  • Rate of growth: average
  • Flowering period: July to October
  • Hardiness: frost hardy (will need winter protection in cold areas)

    Elegant spikes of small, tubular, foxglove-like flowers appear from July to October among lance-shaped, bright green leaves. This easy-to-grow perennial will quickly form large, leafy clumps and is perfect for adding a splash of colour to the middle of a sunny, well-drained border. If you deadhead regularly, the flowers will persist until the first frosts. The flowers of this penstemon can vary in colour (from magenta- violet with purple undertones, to soft violet-blue.

  • Garden care: Remove the faded blooms regularly to prolong flowering. Apply a dry mulch around the base of the plant to protect the roots from frost damage and cut back in spring when new shoots appear low down on the stem. Lift and divide congested clumps in spring.

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Eventual height & spread

Eventual height and spread

Notes on Penstemon 'Sour Grapes' M. Fish

"A smoky mixture of pink and blue with an almost metallic silver sheen on the back of the purple-streaked slender trumpets make this long-flowering plant shine in any light"

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Beautiful and vigorous


A great summer for penstemons. It did not flower in its first year but was worth waiting for as has had many repeat flowers this season




Sour Grapes prove to be a sweet success!!


We've taken on a massive yet surprisingly shady overgrown old garden and these penstemon have done brilliantly well in a shady border - adding colour and elegance.

Island ingrid

Isle of Wight


Good plants


All the plants I have bought from Crocus have been well-grown and well packaged. They arrived in perfect condition with not a single leaf or stem damaged. The plants have all settled into the garden and are thriving. I will definitely buy plants from this company in the future.




lovely plants always healthy and arrive in top condition


Love Crocus plants. Never had any problems with plants from Crocus. Always my first choice to purchase from.

No nickname



Lovely subtle colour


An excellent plant for the middle of a border. Doesn't need much support and if you keep dead-heading it flowers for months. The flowers have a subtle colour that's not as strident as some other penstemons. It looks good with the slighter shorter Stachys officinalis 'Hummelo' in front. Also Polemonium caeruleum Jacobs ladder complements the lilac shade of Sour Grapes.




Wouldn't buy again


I bought two in May 2018, and planted them in different flower beds. Both plants look healthy and have grown well in terms of foliage but I have never had a single flower from either! If they don't flower this year I am digging them up....




All plants survived winter, strong growth!


All plants arrived healthy, continued to thrive, and survived winter as well

Satya nayaadami



Gorgeous flowers and colour


Stunning plant, looks fabulous in my border.

A C Babe



Lovely pop of colour


I kill everything but this survived happily




Unsure of further purchase


Planted as instructed on border plan but very disappointed no flowers .The plants look healthy but without flowers

Wee Wifie




4.1 13


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