AWARD

PENSTEMON 'Sour Grapes'

Commonly known as Beard tongue

Greyish-blue flowers suffused with rich purple and tinged green
Further Reading....
  • Semi-evergreen
    Keeps some of its foliage all year, and will drop some leaves as well.
    Elliptic to narrowly ovate leaves 12cm (4¾in) long
  • Blue
    Greyish blue with rich purple
  • Purple
    Shades of purple/mauve/lilac/violet
  • Height
    60cm (24in)
  • Spread
    45cm (18in)
  • Herbaceous
    Early in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch.
    Erect perennial
  • Hardy - average winter
    Hardy through most of the UK apart from inland valleys, at altitude and central/northerly locations. May suffer foliage damage and stem dieback in harsh winters in cold gardens. Plant can withstand temperatures down to -10°C (14°F)
  • Full sun
  • Partial shade

PENSTEMON 'Sour Grapes'

 
Available late spring to early summer 2025 - Spring according to the Met Office is defined as March 1st - May 31st. Therefore late spring is mid-April onwards. This is not a guaranteed date but an estimate and subject to availability.
£12.50 each 
MULTIBUY SAVING

Any 3+ £11.00 each
Delivery Information Available late spring to early summer 2025
plant size comparison icon 1 to 1.5 Litre
Click to see photo

 

  • Additional Features
    Good to know
    Wildlife plant - bees. Deadhead to prolong flowering. Leave foliage through winter for protection.
    Pests & Diseases
    Chrysanthemum eelworm, powdery mildew
    Place of origin
    Garden origin. Collected by Margery Fish, East Lambrook, Somerset, UK
    Resistant to honey fungus
    These plants have little or few problems with honey fungus.
  • Flower Shape
    Bell/Lantern
    Panicles
    Tubular
    5-7cm (2-3in) long
  • Garden Location/Conditions
    Border
    Suitable for a mixed or herbaceous border
  • Hardiness
    Fully hardy
  • Seasonal Interest
    Autumn
    Summer
  • Soil Conditions
    Fertile well drained soil
    Give winter mulch
  • Wildlife
    Bee friendly
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Herbaceous Plants - Video Collection
Penstemon - Growing Guide
60cm (24in)
 Herbaceous - guide for size not form Watering Can
  45cm (18in)
  

Useful extras...

Fertilisers & Feeds - Empathy
All-purpose Seaweed Stimulant
All-purpose organic concentrated seaweed feed that is a ready to use, derived from sustainable harvested kelp, that can be used on all outdoor and indoor plants, except acid loving plants. Perfect used in conjunction with Rootgrow™.
Only £7.50

Fertilisers & Feeds - Empathy
Afterplant - Grow Your Own
AFTER PLANT GROW YOUR OWN seaweed is ready to use liquid concentrate that was specially formulated be used on all edible plants.
Only £8.00

Fertilisers & Feeds - Empathy
Rootgrow mycorrhizal fungi
Recommended by the RHS. Contains Rootgrow™ mycorrhizal fungi. Suitable for all trees and shrubs (except rhododendrons, azaleas, heathers, cranberries and blueberries)
3 options from £3.00

Fertilisers & Feeds - Empathy
Wildflower Mini Meadow
Creates a mini-meadow for attracting bees, butterflies and bugs to your garden. 200g sachet which will cover 3 square metres. Contains Rootgrow™ mycorrhizal fungi.
2 options from £7.00

Fertilisers & Feeds - Empathy
Afterplant - Tomatoes
AFTER PLANT TOMATO FEED Liquid Concentrate with Bio stimulant is a high potash liquid concentrate containing seaweed extract, plant derived amino acids and other nutrients specifically formulated to benefit tomatoes and greenhouse plants.
Only £8.00

Vermin & Pest Control
Slug Pellets
Slug killer blue mini pellets are easy to use and give effective control of slugs and snails. Ideal in garden, conservatory or greenhouse.
Only £6.50

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