Dill care

Light

Most houseplants will scorch where dill thrives. Give it the windowsill you'd otherwise leave empty because everything else burned there. 6+ hours of direct sun. A plant moved abruptly from low light to direct sun bleaches in 48 hours — always acclimatise over a week.

Watering

Aim for twice-weekly watering for dill, but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Consistent moisture; drought stress hastens bolting.

Soil and pot

Dill grows best in free-draining loam. pH 5.5-6.5. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Dill sits happiest at around 40-70% (outdoor) humidity and 15-24°C (60-75°F). Outdoor humidity rarely matters. If you keep the room above 15 year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed dill sparingly. Light feed at planting; avoid high nitrogen. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on dill in the Growli community. Each is annotated with the most common cause so you know where to start.

• Bolting fast — Heat triggers flowering; succession-sow every 3 weeks.
• Falls over — Top-heavy stems; stake or grow against a fence.
• Swallowtail caterpillars — Beneficial; plant extra for them.
• Aphids on shoot tips — Rinse off or use horticultural soap.
• Poor germination — Old seed; use fresh and surface-sow (needs light).

Companion plants

Dill pairs well with Cucumber, Onion, Cabbage, and Lettuce. These are species with similar light and water needs, so you can grow them in the same bed or container without conflict.

Propagation

Direct-sow in spring and successively until midsummer. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Dill is pet-safe. Anethum graveolens is not listed by the ASPCA. Safe for cats and dogs in moderation. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Dill deep-dive guides

Every aspect of dill care, each with its own calibrated guide:

• Common dill problems & fixes
• Dill watering schedule
• Dill light requirements
• Best soil mix for dill
• Dill fertilizing guide
• When to repot dill
• How to propagate dill
• How to prune dill
• What's eating my dill?
• Dill growth rate & size
• Dill cold hardiness
• Dill temperature & humidity
• Is dill toxic to cats & dogs?
• Is dill toxic to cats?
• Is dill toxic to dogs?

Featured in these plant shortlists

Dill qualifies for 1 curated Growli shortlist — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best pet-safe low-maintenance plants — Non-toxic to cats and dogs and forgiving of forgotten watering — the easiest safe choices for a busy pet household.
• Browse all 30 plant shortlists — pet-safe, low-light, drought-tolerant and more

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Dill is also commonly called common dill or dill weed.

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