Dill plant photo (Anethum graveolens)
Photo: Andreas Schneider · CC BY 4.0
herb
Updated May 2026·Eastern Mediterranean and Southwest Asia

Dill

Anethum graveolens

Dill is a swallowtail butterfly host plant — black swallowtail caterpillars exclusively eat dill, fennel, and parsley. Many gardeners plant a sacrificial patch specifically to support pollinator populations.

USDA Zones
2-11 (annual)
Sun
full sun
Water
moderate
Mature Size
2-4 ft tall, 1 ft wide
Growth Rate
fast
Family
Apiaceae
Care guide

How to care for dill

Sow direct after frost — dill doesn't transplant (taproot snaps). Succession-sow every 3 weeks for continuous leaf harvest. For pickling, plant a large patch in mid-July so seedheads peak with cucumber harvest in August.

Garden uses & design ideas

Best garden use

Keep it close to paths, patios, or kitchen doors so harvesting feels easy and the fragrance is part of the garden experience.

Pair it with

Cabbage, Onion, Lettuce make easy companion choices because they share similar light, water, or visual texture needs.

Layout tip

Match it with full sun exposure, place it in a moderate-water bed where soil can stay evenly damp but not soggy, and check USDA zones 2-11 (annual) before planting. Use the garden planner to test spacing around its mature size: 2-4 ft tall, 1 ft wide.

Gardener note — Double-check local invasive, edible, and toxicity guidance with your county extension office before planting around pets, children, or natural areas.

Companion plants

Dill grows well alongside these — similar light, water, and texture needs.

Common pests & problems

swallowtail butterfly caterpillars (consider leaving)aphids

Where it grows best

Native to Eastern Mediterranean and Southwest Asia; thrives in USDA hardiness zones 2-11 (annual).

Frequently asked about dill

What USDA zones does Dill grow in?+

Dill is hardy in USDA zones 2-11 (annual). Outside these zones, it can usually be grown indoors or as a seasonal annual.

How much sun does Dill need?+

Dill prefers full sun. Place it where it gets that light most of the day for best growth and flowering.

How often should I water Dill?+

Dill has moderate water needs. Keep soil consistently moist but not soggy. Sow direct after frost — dill doesn't transplant (taproot snaps). Succession-sow every 3 weeks for continuous leaf harvest. For pickling, plant a large patch in mid-July so seedheads peak with cucumber harvest in August.

How big does Dill get?+

Dill reaches a mature size of 2-4 ft tall, 1 ft wide. Growth rate is fast, so plan spacing accordingly when planting.

What plants grow well with Dill?+

Dill pairs well with Cabbage, Onion, Lettuce, Cucumber, Asparagus. These companions share similar care requirements and don't compete aggressively for resources.

What pests affect Dill?+

Common Dill problems include swallowtail butterfly caterpillars (consider leaving); aphids. Catching early signs in routine inspection prevents most damage.

When does Dill bloom?+

Dill blooms in midsummer (yellow umbel flowers). Deadheading spent flowers (where applicable) often encourages a longer bloom window.

✦ Free 3D garden designer

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Drag plants into a 3D space, walk through it, or upload a photo and let AI redesign it. Test spacing around its mature size before you plant.

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