How to Grow Parsley, Curly
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Parsley, Curly
Petroselinum crispum var. crispum
herbCurly parsley is a biennial herb with densely frilled, deep green leaves that form attractive mounding plants. It is commonly used as a culinary garnish and flavoring agent in kitchens worldwide. The plant is cold-hardy, decorative, and prolific when given proper growing conditions.
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Example Parsley, Curly timeline · Pittsburgh, PA (Zone 6b)
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Plant Parsley, Curly
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Parsley, Curly
Around Jun 26≈ 70 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-9; grows as annual in warmer zones (10+)
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Seedling
2-3 weeksTiny seedlings with simple oval cotyledons emerge; first true leaves are fernlike and delicate
Keep soil moist; provide bright indirect light; thin seedlings to prevent damping off; be patient—parsley germinates slowly (14-21 days)
Vegetative Growth
4-8 weeksPlant develops multiple stems with increasingly frilly, deeply cut compound leaves; forms a mounding bushy shape
Water consistently; pinch off flower buds to extend leaf production; apply balanced liquid fertilizer every 3-4 weeks
Mature Foliage
6-12 weeksPlant reaches full size (12-18 inches tall) with dense curly foliage ready for regular harvesting
Begin harvesting outer leaves; maintain moisture and fertility; remove any yellowed or damaged foliage
Flowering (Year 2)
4-8 weeksPlant bolts, sending up tall flower stalks with small yellow-green flowers in flat-topped clusters (umbels)
Flowering signals the end of the plant's useful life in the garden; allow some flowers to set seed if desired for next season
Seed Production
3-4 weeksFlowers develop into small brown seeds; foliage becomes coarse and less palatable
Allow seeds to dry on plant if saving for next season; harvest seed heads when they turn brown
Common Pests
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Allow some caterpillars to develop into butterflies for pollination; remove by hand if population is excessive; neem oil spray
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Strong water spray to dislodge; insecticidal soap; neem oil; encourage beneficial insects like ladybugs
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Increase humidity; mist foliage regularly; insecticidal soap; neem oil
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Yellow sticky traps; insecticidal soap; neem oil; improve air circulation
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Remove affected leaves; improve air circulation; avoid overhead watering; apply copper fungicide if severe
Uses
Garnish & Fresh Seasoning
CulinaryCurly parsley is a classic garnish for soups, salads, and plated dishes. Fresh leaves add mild herbal flavor to sauces, dressings, egg dishes, and Mediterranean cuisines. [source]
Chlorophyll & Breath Freshener
CulinaryHigh chlorophyll content helps neutralize odors and freshen breath naturally. Often chewed after meals or added to smoothies for this benefit. [source]
Digestive & Diuretic Support
MedicinalTraditionally used as herbal tea to aid digestion, reduce bloating, and support kidney function. Contains volatile oils that may help stimulate digestive enzymes. [source]
Antioxidant & Nutrient-Rich
MedicinalRich in vitamins A, C, K, and minerals like iron and potassium. Contains flavonoids and carotenoids that support immune function and reduce inflammation. [source]
Natural Deodorizer
HouseholdFresh parsley leaves can be simmered with water or lemon to create a natural air freshener for the home or to eliminate cooking odors. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Begin harvesting when plant is 6-8 inches tall by pinching or cutting outer stems at the base, working from outside inward. Harvest regularly to encourage bushy growth and prevent bolting. Cut stems just above a leaf node. Harvest in morning after dew dries for best flavor. Can be harvested continuously throughout the growing season; productivity peaks in cool season.
Fun Facts
- 🌱 Parsley seeds can take 3-4 weeks to germinate because they contain germination-inhibiting oils; some gardeners soak seeds overnight or scar them lightly to speed sprouting.
- 🌱 Curly parsley is the preferred larval food plant for Black Swallowtail butterflies, making it an excellent addition to pollinator gardens—many gardeners deliberately plant extra to support these beautiful insects.
- 🌱 In ancient Greece and Rome, parsley was associated with death and was traditionally used in funeral wreaths, yet today it's one of the most popular culinary herbs worldwide.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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