When to plant Ammi in Durham

Ammi majus

Ammi
Ammi · Ammi majus

A hardy annual grown in the UK for airy white flowers and good cutting stems. Sow direct. The sap can irritate skin in sun. Wear gloves.

90 cm · Full Sun · Moderate Water

Add to garden

Calibrated to Durham · last frost ≈ 10 May

Sow outdoors March to April, harvest July to October. Frost risk October to May.
ActivityJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
Sow outdoorsNoNoYesYesNoNoNoNoNoNoNoNo
HarvestNoNoNoNoNoNoYesYesYesYesNoNo

Growing guide

What to do through the growing season

Growing guide for

Change the guide to see different planting timelines and tips.

Sow direct in spring for a reliable display. This is the easiest UK method.

  1. 01

    Sow Seeds

    26 Mar to 26 Apr

    Sow thinly around 26th March - 26th April, just under deep in prepared soil. Keep the surface evenly moist while the seedlings establish. Protect early sowings from birds and slugs.

    • The sap can irritate skin in sun. Wear gloves.
    • Leave seedlings where they are. The taproot dislikes being moved.

  2. 02

    Thin Seedlings

    9 Apr to 24 May Dates as each sowing reaches this stage

    When seedlings are large enough to handle, thin to . Keep the strongest plants. Remove the weaker ones cleanly around 9th April - 24th May.

  3. 04

    Support Plants

    7 May to 5 Jul Dates as each sowing reaches this stage

    From 7th May, put light stakes or mesh in before the plants start to lean. Add support early rather than waiting for stems to bend.

  4. 05

    Water and Feed

    9 Apr to 16 Oct Dates as each sowing reaches this stage

    From 9th April to 16th October, water during dry spells. If the soil is poor, give one light balanced feed as flowering begins. Avoid overfeeding.

  5. 06

    Cut Flowers

    2 Jul to 16 Oct Dates as each sowing reaches this stage

    Cut stems from 2nd July as soon as the flower heads open. Keep picking through 16th October. Cut early in the day and put them straight into water.

Suggested varieties

Popular varieties of Ammi to consider

Graceland

A reliable Ammi majus with large, white, lace-like umbels on tall, sturdy stems. It is vigorous and copes well with UK's cool summers, making it a top choice for cutting and borders.

Casablanca

A compact, early-flowering Ammi majus that stays shorter than most, so it suits smaller gardens and windy spots. The clean white flowers appear for weeks and are excellent for picking.

Green Mist

This Ammi visnaga variety produces soft green umbels that add a frothy, airy texture to beds and bouquets. It is tough, self-seeds readily, and handles damp British summers without flopping.

Snowflake

A fine-textured Ammi majus with delicate foliage and abundant white blooms. It is slightly more compact and bushy than 'Graceland', making it a good middle-of-border filler that stands up well to rain.

Ammi guides by town

See how Ammi timing shifts in other towns with different frost dates.