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<i>Lathyrus</i> × <i>hammettii</i> 'Erewhon'
<i>Lathyrus</i> × <i>hammettii</i> 'Erewhon'

Lathyrus × hammettii 'Erewhon'

SKU: RH30007525
9cm pot | 5 - 7 seedlings
£7.99 £6.39
In stock (delivery in 2-3 working days)
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Overview

A standout and remarkable sweet pea variety, lauded for its unique flower colouration. A product of modern breeding, it breaks new ground with its darker lower petals compared to the upper ones, earning it the distinction of a true 'reverse bicolour'. Moreover, the blooms exude a delightful sweet pea fragrance.

With its dark purple petals and strikingly lighter pink standards, 'Erewhon' makes an excellent choice for adorning trellises or obelisks in gardens. Its fragrance also makes it a beloved pick for cut flower arrangements.

Specifications

  • Position: Full sun / light shade
  • Soil: Moderately fertile, moist, well-drained soil
  • Rate of growth: Fast-growing
  • Flowering period: June to September
  • Hardiness: Frost tender

Care guide

After the risk of frost has passed, and before spring planting our 9cm sweet peas, incorporate lots of well-rotted organic matter in the planting area and backfill. Once planted out, keep sweet peas well-watered, especially during dry spells, as they dislike drying out. Tie in the stems regularly to their supports to keep them upright and prevent tangling. Feed every couple of weeks with a high-potash fertiliser once flowering starts to encourage continuous blooms.

Remove faded flowers promptly to prevent seed pods forming, as this will prolong flowering. Keep an eye out for pests such as aphids and treat early to prevent damage. Regular picking not only keeps the display going but also provides plenty of blooms for the house.

Planting requirements

  • From October to late February, sow seeds into deep pots or root trainers filled with a good-quality seed compost and place them in a cold frame. Pinch out the tips as the plants grow to encourage them to become bushier and produce more flowers, and harden off before planting out in early April.
  • Direct sowing can also be made in October, where plants will be more advanced for the following year, or March-April. It is important to remove the faded flowers before they set seed, so picking them to fill a vase inside will only encourage more to form.

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© 2026 Cercis Ltd. All rights reserved | Primrose is the trading name of Cercis Ltd (Registration number: 14521244)

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© 2026 Cercis Ltd. All rights reserved | Primrose is the trading name of Cercis Ltd (Registration number: 14521244)