Penstemon barbatus 'Iron Maiden'

Penstemon barbatus ‘Iron Maiden’

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 barbatus 'Iron Maiden'
  • Common name: Penstemon
  • Family: Plantaginaceae
  • Plant Type: Perennial
Flower colour:

Red

Foliage colour:

Green

Penstemon barbatus ‘Iron Maiden’ is a half-hardy perennial penstemon, with tall stems bearing bright scarlet flowers from midsummer to early autumn. As they’re not fully hardy, it’s advisable to avoid cutting back the old growth, which will provide extra protection, until the worst winter weather is over, usually around February and March. You can then cut it back hard to make way for fresh growth. 

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When planting, give them a light feed but don’t feed again – overfeeding will result in lots of leafy growth at the expense of flowers. To prolong flowering, cut back spent flower stems.

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For best results, grow Penstemon barbatus ‘Iron Maiden’ in light, well-drained soil in full sun.

How to grow Penstemon 'Iron Maiden'

  • Plant size

    1.2m height

    40cm spread

  • Aspect

    South facing, west facing

  • Position in border

    Middle

  • Sun exposure: Full sun
  • Hardiness: Half hardy
  • Soil type: Well drained / light / sandy / chalky / alkaline

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 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 Plant in March

Do Plant in April

Do Plant in May

Do not Plant in June

Do not Plant in July

Do not Plant in August

Do Plant in September

Do Plant in October

Do 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 not 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 Take cuttings in May

Do Take cuttings in June

Do not 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

Penstemon 'Iron Maiden' and wildlife

Penstemon 'Iron Maiden' is known for attracting butterflies​/​moths. It nectar-pollen-rich-flowers.

Does not attract Bees

Does not attract Beneficial insects

Does not attract Birds

Attractive to Butterflies​/​Moths

Does not attract Other pollinators

Is Penstemon 'Iron Maiden' poisonous?

Penstemon 'Iron Maiden' 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 'Iron Maiden'