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Lathyrus odoratus 'mixed Spencer Hybrids'

Sweet pea

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Key information

Plant type

Hardy annual

Flower colour



Scented flowers



Skill level


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Plant details

There are dwarf sweet peas which grow into miniature hedges, and old-fashioned intensely fragrant kinds that fill the room with perfume. Spencer varieties are perhaps the most popular, satisfying amateur gardeners and exhibitors alike with their large, scented and colourful flowers. The strong stems may be trained as cordons on canes for high-quality blooms, or allowed to scramble freely to make a colourful screen. Plants need a cool moist root run, helped by mulching after planting, and regular watering in dry weather.

Family: Papilionaceae

Genus: Lathyrus

Species: odoratus

Cultivar: mixed Spencer Hybrids

Plant type: Hardy annual

Flower colour: Mixed

Foliage colour: Blue-green

Feature: Scented flowers

Sun exposure: Full sun, Partial shade

Soil: Well-drained/light, Clay/heavy, Chalky/alkaline, Dry

Hardiness: Hardy

Skill level: Beginner

Height: 200cm

Spread: 30cm

Time to plant seeds: September to May

Reader reviews


I have planted sweet peas, three to a pot, as demonstrated by Monty Don.
They are sprouting happily.
Do I need to keep the three plants apart - stop entwining.
In spring will I have to split them and plant separately or will I have to plant them in groups of three? (I would rather split them to cover a longer bit of wall)
How would you recommend supporting them in their pots over the winter?

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