When to plant Dill in Cardiff

Anethum graveolens

Dill
Dill · Anethum graveolens

A quick annual herb for light, feathery leaves. It grows best from spring to mid-summer in a sunny, sheltered spot with free-draining soil. It dislikes root disturbance.

80 cm · Full Sun · Moderate Water

Add to garden

Calibrated to Cardiff · last frost ≈ 22 Apr

Sow outdoors April to July, harvest May to October. Frost risk October to April.
ActivityJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
Sow outdoorsNoNoNoYesYesYesYesNoNoNoNoNo
HarvestNoNoNoNoYesYesYesYesYesYesNoNo

Growing guide

What to do through the growing season

  1. 01

    Sow seeds

    1 Apr to 30 Jul Optional · repeat every 3 weeks

    Sow thinly around 1st April - 30th July, cover . Sow a fresh batch every 21 days.

    • Slugs go for seedlings. Hand-pick or use a barrier.
    • Fleece helps the first sowing if the soil is still cold. Take it off once seedlings are growing.

  2. 02

    Thin seedlings

    11 Apr to 20 Aug Dates as each sowing reaches this stage

    After each sowing, thin to . Snip extras at soil level. Do not transplant.

  3. 03

    Water in dry spells

    1 Apr to 28 Oct Dates as each sowing reaches this stage

    After each sowing, water in dry spells from 1st April through 28th October. Dry spells can encourage bolting.

  4. 04

    Pinch out tips

    29 Apr to 28 Oct Dates as each sowing reaches this stage

    After each sowing, pinch tips from 29th April if you want leaves. Take flower stems as they appear.

  5. 05

    Harvest leaves

    13 May to 28 Oct Dates as each sowing reaches this stage

    After each sowing, start cutting from 13th May. Leave about one-third of the plant. Keep picking through 28th October.

    • Leave one plant to flower if you want seed heads.

Companion plants

Tap a plant to see why it works (or doesn't) with Dill.

Good companions

Plants to avoid

Why companion planting matters

Companion planting can deter pests, improve pollination, and make better use of space. Some plants confuse pests or attract beneficial insects; others improve soil or offer shade to neighbours that need it.

Suggested varieties

Popular varieties of Dill to consider

Mammoth

A tall, leafy dill with good flavour for salads, fish and pickling.

Fernleaf

A compact, slow-bolting type that suits pots and small gardens.

Tetra

A reliable, later-flowering cultivar with plenty of foliage.

Dill guides by town

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