Sweet Pea Mammoth Rose Pink – large frilly pink blooms in a green garden under blue sky

Sweet Pea Mammoth Rose Pink

£2.30
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Sweet Pea Mammoth Rose Pink – large frilly pink blooms in a green garden under blue sky
RHS Plants for Pollinators

Sweet Pea Mammoth Rose Pink

Lathyrus odoratus 'Mammoth Rose Pink' — Early Multiflora Gigantea type

4 reviews

Extra-large deep rose-pink Sweet Pea on long sturdy stems — the giants of the Sweet Pea world, built for substantial cutting and exhibition use.

£2.30

Free UK delivery on seed orders over £30

Dispatched from our Norfolk farm — Royal Mail, usually within one working day.

Your growing year

Sow, plant out and flowering months for this variety

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sow
Plant out
In flower
SowPlant outIn flower

At a glance

Height
1.8-2.4m
Spread
30cm
Spacing
20-30cm
Position
Full sun is essential for the best flower production. While they will tolerate light, dappled shade, heavy shade will drastically reduce blooming.
Colour
Pink
Seeds per packet
25
Soil
Moisture-retentive but never waterlogged. Sweet peas are thirsty and require consistent moisture.
Grow guide How to grow Sweet Pea Mammoth Rose Pink Read the full guide →

About this variety

The giant. Some of the largest sweet pea blooms available from seed, in a deep rose-pink that holds through the season, on long and unusually sturdy stems.

Be clear about the trade. This is a size variety. It is scented, but not in the way 'Heaven Scent' or the Old Spice types are, and if fragrance is your first requirement you would be better served elsewhere. What it gives you instead is flowers with real visual weight, which a big arrangement needs and a delicate variety cannot supply.

If you want the biggest possible blooms, grow it on the cordon system exhibitors use: allow only two or three main shoots per plant and rub out every sideshoot as it appears. All the plant's energy then goes into fewer, larger flowers. It is more work, and the difference is considerable.

It climbs to about two metres and flowers June through October. Pick daily, and more religiously with a mammoth type than any other, because bloom size drops off fast once a plant starts setting seed.

RHS Plants for Pollinators

This plant has been assessed by the Royal Horticultural Society and recommended as especially beneficial to bees, butterflies and other pollinators. Growing plants like this directly supports UK pollinator populations — something close to our hearts at Salle Moor Hall Farm, where we see the difference a cottage garden full of the right plants can make.

Learn more at RHS.org.uk →
  • 5 stars: 4 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
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  • 1 star: 0 (0%)
L
Lesley Stewart
Delivery of seeds

Seeds requested were delivered very quickly and wrapped well. Can’t comment on the flower as I have yet to plant the seeds! Will definitely purchase from company again.

L
Lesley Stewart
Delivery of seeds

Seeds requested were delivered very quickly and wrapped well. Can’t comment on the flower as I have yet to plant the seeds! Will definitely purchase from company again.

S
Solveiga Liepina
Good

Good

S
Solveiga Liepina
Good

Good