Dill

Anethum graveolens

HerbsFrost Hardy

Feathery herb prized for its leaves and seeds. Attracts beneficial insects and makes an excellent companion for cucumbers.

Overview

SunFull Sun

WaterMediumCalculate watering amount

Height40–90 cm

Spread40 cm

Spacing25 cm

Row Spacing45 cm

Germination7–14 days

To Harvest40–60 days

Companion Planting

Good Companions

Cucumber Cabbage Lettuce

Bad Companions

Tomato Carrot

Toxicity

SeverityNon-toxic

Non-toxic to humans, dogs, and cats according to the ASPCA; large quantities may cause mild stomach upset, and concentrated essential oil can irritate skin and eyes.

Planting Tips

LocationFull sun (6-8 hours); tolerates light partial shade.

SoilWell-drained, slightly acidic soil rich in organic matter; use a pot at least 30 cm deep to accommodate the long taproot.

Sowing Depth0.5 cm

Planting Depth3 cm

WateringKeep soil consistently moist but not soggy; provide about 2.5 cm (1 inch) of water per week and avoid overwatering to prevent root rot.

1 cm of water per m² equals 10 liters. Use the Watering Calculator for exact amounts.

FertilizingLow feeder — a single light application of balanced fertilizer (e.g. 5-10-5) in late spring is sufficient; compost-amended soil often provides enough nutrients on its own.

Care Tip: Direct-sow seeds as dill does not transplant well; thin seedlings to 25-30 cm apart and mulch to retain moisture.

Common Pests

Aphids

Symptoms: Clusters of small insects on leaves and shoot tips causing curled, distorted, and stunted growth; sticky honeydew residue.

Treatment: Spray with a strong jet of water or apply insecticidal soap; neem oil works for heavier infestations.

Prevention: Encourage natural predators like ladybugs and lacewings; avoid excessive nitrogen fertilization.

Tomato / Parsley Hornworm

Symptoms: Large caterpillars chewing through foliage and stems, leaving behind stripped branches and dark droppings.

Treatment: Hand-pick caterpillars; apply Bacillus thuringiensis (Bt) for severe infestations.

Prevention: Inspect plants regularly; rotate crops and till soil in autumn to destroy overwintering pupae.

Armyworm

Symptoms: Ragged, chewed leaves and rapid defoliation, especially by young larvae feeding in groups.

Treatment: Hand-pick larvae; apply Bt or spinosad-based sprays for larger outbreaks.

Prevention: Remove weeds and debris that shelter eggs; use row covers early in the season.

Common Diseases

Damping-off

Symptoms: Seedlings collapse at the soil line, stems become water-soaked and thin; seeds may rot before emergence.

Treatment: Remove affected seedlings immediately; drench soil with a fungicide containing copper or mefenoxam.

Prevention: Use sterile seed-starting mix, avoid overwatering, ensure good air circulation, and do not sow too densely.

Powdery Mildew

Symptoms: White, powdery fungal coating on leaves and stems; leaves may yellow and drop prematurely.

Treatment: Apply sulfur-based or potassium bicarbonate fungicide; remove and dispose of heavily infected foliage.

Prevention: Space plants adequately for airflow; water at the base rather than overhead; avoid shady, humid locations.

Alternaria Leaf Spot (Cercospora / Alternaria Blight)

Symptoms: Dark brown to black spots with concentric rings on leaves; spots may merge and cause extensive leaf dieback.

Treatment: Apply copper-based fungicide; remove and destroy infected plant material.

Prevention: Practice crop rotation (3-year cycle); use disease-free seed; avoid overhead irrigation.

📋Overview

🤝Companion Planting