Herbs

Does Dill Come Back Every Year? It Self-Seeds Instead

Dill is an annual and dies after flowering — but it seeds so freely that a patch returns on its own if you let one plant set seed.

By Zakaria September 27, 2026 3 min read Save to Pinterest

A dill umbel in full flower, yellow-green florets radiating on fine spokes above feathery foliage — Photo: Julia Filirovska, Pexels License, via Pexels

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The plant does not. The patch does. Dill is a true annual that flowers, seeds and dies in one season — but it self-seeds so freely that volunteers come up in the same spot each spring, which looks exactly like a plant returning.

The short answer

Dill is a true annual: the individual plant flowers, sets seed and dies within one season and cannot be kept going by cutting back. A dill patch nonetheless returns most years because it self-seeds very freely — each flower head carries hundreds of seeds that germinate readily in disturbed soil. Let one or two plants run to seed and you generally never sow dill again. It bolts quickly in heat and after root disturbance, so sow it directly where it is to grow, and sow little and often for a continuous leaf supply.

A true annual. The plant dies after seeding
Self-seeds freely — the patch returns without you
Let one plant set seed and you need not sow again
Bolts fast in heat and after transplanting
Sow direct, never in modules — it has a taproot
Sow every 3–4 weeks for continuous leaf

Annual, despite the shelf it sits on

Dill against the herbs it gets grouped with

	Life cycle	Comes back?
Dill	Annual	Only by self-seeding
Fennel	Perennial	Yes, the same plant
Thyme, sage, oregano	Perennial	Yes
Cilantro	Annual	By self-seeding

Fennel is the perennial of the pair — and since the two look alike, that is a large part of why dill gets mistaken for one.

How reliably does it seed?

Very — occasionally to the point of nuisance:

Each flower head carries hundreds of seeds
They germinate readily in disturbed soil, so seedlings appear in paths, gravel and neighbouring beds as well as where you wanted them
They pull out easily while small

If you do not want volunteers, cut the heads before the seed browns

Green seed is not viable. Once the heads turn brown and dry, they are, and they shed on the first windy day.

Why it bolts so fast

Two causes, and one of them is avoidable:

Heat. Dill runs to flower as temperatures climb. Not much to be done
Root disturbance. Dill has a long taproot and transplanted plants often bolt almost immediately as a stress response

Sow direct. Module-raised dill bolts on transplanting

This is the single most common reason a bought or pricked-out dill plant flowers within weeks of going in the ground.

Crowding and dry soil accelerate it too.

Basil is the other herb people lose to the wrong light rather than the wrong watering — see does basil need direct sunlight.

Keeping leaf coming all season

Succession sowing, not maintenance. The useful leaf window on any one plant is short.

A fresh sowing every three to four weeks, spring to midsummer
Pinching out flower buds buys a little extra leaf, but will not hold a bolting plant for long

Indoors over winter

Possible, with lowered expectations:

A bright south-facing window or a grow light
A pot at least eight to ten inches deep for the taproot
Thinner, less aromatic growth than a summer plant
Sow fresh every few weeks indoors too — the short leaf window still applies

Common questions

Does dill come back every year?

The individual plant does not — dill is a true annual that flowers, sets seed and dies within a single season. But a dill patch very often appears to return, because it self-seeds so freely that volunteers come up in the same place the following spring. If you let one or two plants run to seed rather than cutting them all for the kitchen, you generally do not need to sow dill again.

Is dill an annual or a perennial?

An annual, and this catches people out because dill is often grouped on the shelf with perennial herbs like thyme, sage and oregano. It completes its whole life cycle in one season and cannot be kept going by cutting it back the way a perennial can. Fennel, which looks similar and is frequently confused with it, is the perennial of the pair — another reason the two get muddled.

Does dill reseed itself reliably?

Very reliably, to the point that it becomes a mild nuisance in some gardens. Each flower head produces hundreds of seeds and they germinate readily in disturbed soil, so seedlings appear in paths, gravel and neighbouring beds as well as where you wanted them. They pull out easily while small. If you do not want volunteers, cut the flower heads off before the seed ripens and turns brown.

Why does my dill bolt so quickly?

Heat and root disturbance, mostly. Dill runs to flower once temperatures climb, and it has a long taproot that resents being moved, so transplanted dill often bolts almost immediately as a stress response. That is why it is best sown directly where it is to grow rather than raised in modules. Crowded plants and dry soil accelerate it too.

How do you keep a supply of dill leaf all season?

Sow little and often rather than trying to keep one plant going. A fresh sowing every three to four weeks from spring until midsummer gives continuous young foliage, because the useful leaf window on any individual plant is short once it starts to bolt. Pinching out flower buds buys a little extra leaf, but it does not hold a bolting plant back for long — succession sowing is the real answer.

Can you grow dill indoors over winter?

You can, with a caveat that it will not perform like the outdoor crop. Dill needs a lot of light and a deep pot for its taproot, so a bright south-facing window or a grow light and a pot at least eight to ten inches deep are the minimum. Expect thinner, less aromatic growth than a summer plant. Sow fresh every few weeks indoors as well, since the same short leaf window applies.

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Growing Guides · Sep 5, 2026