Parsley — How to Grow Parsley in Australia

☀️ Sun

Part Shade

💧 Water

Medium

↔ Spacing

25cm apart

↕ Height

Up to 60cm

📅 Harvest

80 days

Growing Guide

Plant parsley in Australian autumn (March–May) or spring (September–November) for best results, as these cooler, milder seasons promote strong germination and steady leafy growth. In subtropical regions, autumn planting is ideal to avoid the harshest summer humidity. Begin by preparing soil with well-aged compost or organic matter dug to 20–30 cm depth, aiming for a loose, fertile, free-draining bed with a slightly acidic to neutral pH of 6.0–7.0. Parsley germinates slowly — soak seeds in warm water for 24 hours before sowing to help break dormancy, then sow 5 mm deep directly into the garden or into seed trays for later transplanting. Expect germination in 2–4 weeks. Space seedlings 20–30 cm apart to allow good airflow. Water consistently to keep soil evenly moist but never waterlogged — deep watering twice weekly during warm weather works well, reducing to once weekly in cooler months. Mulching around the base with sugar cane mulch helps retain moisture and suppress weeds. Begin feeding with a balanced liquid fertiliser once seedlings are established. Harvest outer stems regularly once the plant reaches 15–20 cm in height, cutting at the base to encourage bushy regrowth. Avoid removing more than one-third of the plant at one time. Remove any yellowing or flowering stems promptly to extend the productive life of your parsley and delay bolting.

🤝 Good Companions

Parsley grows exceptionally well alongside tomatoes asparagus roses and chives — it is believed to repel asparagus beetle attract beneficial predatory insects like hoverflies and may even enhance the vigour and flavour of neighbouring tomatoes. Chives share similar growing conditions and help deter aphids making them a practical and compatible herb garden neighbour.

❌ Avoid Planting With

Avoid planting parsley near mint as mint's aggressive spreading roots can compete strongly for nutrients and moisture overwhelming slower-growing parsley. Lettuce planted too closely can also suffer as parsley may inhibit its germination and early growth through mild allelopathic compounds.

🐛 Pests & Diseases

In Australian gardens, parsley is most commonly affected by aphids, caterpillars (particularly those of the Australian swallowtail butterfly, Papilio aegeus), and occasionally whitefly. Treat aphid infestations with a strong blast of water or a diluted neem oil spray, and hand-remove caterpillars where possible — note that swallowtail larvae are ecologically valuable, so consider relocating rather than destroying them. Leaf spot and root rot can occur in poorly drained or overly humid conditions; improve drainage and increase airflow between plants as the best organic prevention.

🌱 Fertilising

Feed parsley every 3–4 weeks during the active growing season with a liquid seaweed or fish emulsion fertiliser to support lush, continuous leaf production. In early spring and autumn, top-dress around the base with well-composted manure or a slow-release organic pellet fertiliser to sustain healthy root development throughout the season.

✂️ Pruning & Training

Regularly harvest outer stems from the base of the plant to stimulate fresh, bushy growth and prevent the plant from becoming leggy or sparse. If flower stalks appear in the second year, pinch them off promptly to delay bolting and extend the plant's productive harvest period.

🔬 Propagation

Parsley is most reliably propagated from seed, sown directly into prepared garden beds or into seed trays filled with a quality seed-raising mix, though patience is required as germination typically takes 2–4 weeks even with pre-soaking. Division is generally not effective for parsley; instead, sow a fresh batch of seeds each season or every two years, as parsley is a biennial and productivity naturally declines after its second year.

🗓 When to Plant

Autumn Winter Spring

🌾 Harvest

Autumn Winter Spring

🌏 Australian Climates

Temperate Cool Temperate Mediterranean Subtropical

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Rosemary → Ginger → Turmeric → Chives → Lavender → Garlic Chives →