Clusters of white Ammi majus flowers by Bishy Barnabees Cottage Garden Ltd bloom densely on green stems, with a few purple blossoms in the sunlight and dreamy blurred trees and a structure in the background.

Ammi majus

£2.20
Skip to product information
Clusters of white Ammi majus flowers by Bishy Barnabees Cottage Garden Ltd bloom densely on green stems, with a few purple blossoms in the sunlight and dreamy blurred trees and a structure in the background.
RHS Plants for PollinatorsRHS Award of Garden MeritBeginner friendly

Ammi majus

Ammi majus

7 reviews

Floating, airy clouds of pure white lace-cap flowers on tall stems — the indispensable cutting-garden filler that has transformed British summer bouquets.

£2.20

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
90–120cm
Spread
45cm
Spacing
30cm
Position
Full sun to light partial shade
Colour
White
Seeds per packet
500
Soil
Reasonably fertile, well-drained
Grow guide How to grow Ammi majus Read the full guide →

About this variety

Flat white lace-cap heads on tall slender stems above ferny foliage, as light and diffuse as sea foam. It has become the standard filler in British cutting gardens over the past decade for the simple reason that nothing else gives you that airiness on a stem you can actually cut.

Autumn sowing is what separates a good ammi from a mediocre one. Sown in September or October it overwinters as a small plant, goes away in spring with a root system already made, and comes in taller, stronger and two to four weeks earlier with noticeably bigger heads. Spring-sown plants are perfectly usable, just smaller. It makes a long taproot and resents being moved, so it does better sown where it is to grow than raised in modules and planted out. It self-seeds freely in a sheltered garden, which is either a bonus or a nuisance depending on how tidy you keep things.

Ammi is in the same family as giant hogweed and the sap is phototoxic. It is far milder than its notorious relative, but wear gloves and long sleeves when cutting in bright sunshine, particularly if your skin is sensitive.

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 →

RHS Award of Garden Merit

The RHS Award of Garden Merit is given to plants of outstanding excellence for ordinary garden use. To earn this award a plant must be of good constitution, available to the gardening public, and perform reliably across a range of UK growing conditions. It is one of the most trusted plant recommendations in British gardening and a genuine mark of quality.

Learn more at RHS.org.uk →
  • 5 stars: 7 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
A
Anonymous
Seeds were easy to order and came quickly

Seeds were easy to order and came quickly and well packaged. Good information given now to wait for them to grow

T
Tamsyn Taft
Seeds were easy to order and came quickly

Seeds were easy to order and came quickly and well packaged. Good information given now to wait for them to grow

C
Carolyne Waters
Fab

Love my seeds I get from Bishy fably efficient

C
Carolyne Waters
Fab

Love my seeds I get from Bishy fably efficient

P
Pamela Mactear
Ammi majus

Thank you so much for the Ammi Majus seeds. I sent them to my mother in Australia, (with a full customs declaration) but was not very hopeful that she would receive them as Australia’s custom rules are very strict. They arrived safely, and my mother has already sown them and they have germinated! She is really looking forward to seeing them grow in her garden.

P
Pamela Mactear
Ammi majus

Thank you so much for the Ammi Majus seeds. I sent them to my mother in Australia, (with a full customs declaration) but was not very hopeful that she would receive them as Australia’s custom rules are very strict. They arrived safely, and my mother has already sown them and they have germinated! She is really looking forward to seeing them grow in her garden.