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Penstemon ‘Sour Grapes’

Penstemon

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does not flower in March

Plant does not flower in April

Plant does not flower in May

Plant does not flower in June

Plant does flower in July

Plant does flower in August

Plant does flower in September

Plant does not flower in October

Plant does not flower in November

Plant does not flower in December

  • Botanical name: Penstemon 'Sour Grapes'
  • Common name: Penstemon
  • Family: Plantaginaceae
  • Plant Type: Perennial, Evergreen
Flower colour:

Purple

Foliage colour:

Green

Penstemon ‘Sour Grapes’

Penstemons produce foxglove-like flowers, which look fantastic in informal and cottage garden schemes, and are extremely attractive to bumblebees.

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They thrive in full sun to partial shade, in moist but well-drained soil. Many varieties of penstemon are hardy in all but the harshest winters, but do move plants under cover or take summer cuttings to ensure they survive winter.

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Penstemon ‘Sour Grapes’ is a robust, hybrid penstemon, bearing rich purple flowers from July to August. It’s ideal for growing in sunny borders, or in pots on the patio. Plants may need protection in particularly cold areas. Apply a thick mulch of well-rotted manure or compost in autumn to protect the roots. Plants can be propagated by seed but they won’t come true. For better results, divide Penstemon ‘Sour Grapes’ in spring.

How to grow Penstemon 'Sour Grapes'

  • Plant size

    60cm height

    45cm spread

  • Aspect

    South facing, west facing

  • Position in border

    Front, middle

  • Sun exposure: Full sun
  • Hardiness: Hardy
  • Soil type: Well drained / light / sandy

Plant calendar

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sow
Sow

Do not Sow in January

Do not Sow in February

Do Sow in March

Do not Sow in April

Do not Sow in May

Do not Sow in June

Do not Sow in July

Do not Sow in August

Do not Sow in September

Do not Sow in October

Do not Sow in November

Do not Sow in December

Plant
Plant

Do not Plant in January

Do not Plant in February

Do not Plant in March

Do not Plant in April

Do Plant in May

Do Plant in June

Do not Plant in July

Do not Plant in August

Do not Plant in September

Do not Plant in October

Do not Plant in November

Do not Plant in December

Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does not flower in March

Plant does not flower in April

Plant does not flower in May

Plant does not flower in June

Plant does flower in July

Plant does flower in August

Plant does flower in September

Plant does not flower in October

Plant does not flower in November

Plant does not flower in December

Divide
Divide

Do not Divide in January

Do not Divide in February

Do Divide in March

Do Divide in April

Do Divide in May

Do not Divide in June

Do not Divide in July

Do not Divide in August

Do not Divide in September

Do not Divide in October

Do not Divide in November

Do not Divide in December

Take cuttings
Take cuttings

Do not Take cuttings in January

Do not Take cuttings in February

Do not Take cuttings in March

Do not Take cuttings in April

Do not Take cuttings in May

Do Take cuttings in June

Do Take cuttings in July

Do not Take cuttings in August

Do not Take cuttings in September

Do not Take cuttings in October

Do not Take cuttings in November

Do not Take cuttings in December

Prune
Prune

Do not Prune in January

Do not Prune in February

Do Prune in March

Do Prune in April

Do Prune in May

Do not Prune in June

Do not Prune in July

Do not Prune in August

Do not Prune in September

Do not Prune in October

Do not Prune in November

Do not Prune in December

Penstemon 'Sour Grapes' and wildlife

Penstemon 'Sour Grapes' is known for attracting bees. It has nectar/pollen rich flowers.

Attractive to Bees

Does not attract Beneficial insects

Does not attract Birds

Does not attract Butterflies​/​Moths

Does not attract Other pollinators

Is Penstemon 'Sour Grapes' poisonous?

Penstemon 'Sour Grapes' has no toxic effects reported.

No reported toxicity to:

No reported toxicity to Birds

No reported toxicity to Cats

No reported toxicity to Dogs

No reported toxicity to Horses

No reported toxicity to Livestock

No reported toxicity to People

Plants that go well with Penstemon 'Sour Grapes'

59626
Plants

Stipa tenuissima

Ornamental grass