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Flat-Leaf Parsley

Petroselinum crispum var. neapolitanum

Also known as Italian parsley, this variety offers superior flavor compared to curly parsley with its clean, bright taste that doesn't overpower dishes. The flat, deeply-cut leaves are easier to chop and provide a fresh, grassy flavor that's essential in Mediterranean cooking. This hardy biennial is incredibly productive and continues growing through light frosts, making it a kitchen garden staple.

Harvest

70-90d

Days to harvest

📅

Sun

Partial shade to full sun

☀️

Zones

3–9

USDA hardiness

🗺️

Height

0-3 feet

📏

Planting Timeline

Zone:

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Start Indoors

Transplant

Harvest

Start Indoors

Transplant

Harvest

Showing dates for Flat-Leaf Parsley in USDA Zone 7

All Zone 7 herb →

Zone Map

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Flat-Leaf Parsley · Zones 3–9

What grows well in Zone 7? →

Growing Details

Difficulty

Easy

Spacing6-8 inches

SoilRich, well-drained soil with good organic matter

pH6.0-7.0

Water1 inch per week, consistent moisture

SeasonCool season, biennial grown as annual

FlavorFresh, clean, and grassy with a bright, slightly peppery finish

ColorDark green

Size2-4 inch leaves

Zone-by-Zone Planting Calendar

Zone	Indoor Start	Transplant	Direct Sow	Harvest
Zone 3	April – May	June – July	—	July – October
Zone 4	March – April	June – July	—	July – October
Zone 5	March – April	May – June	—	June – October
Zone 6	March – April	May – June	—	June – November
Zone 7	February – March	April – June	—	June – November
Zone 8	February – March	April – May	—	May – December
Zone 9	January – February	March – April	—	April – December

Complete Growing Guide

Soil: Clay, Loam (Silt), Sand. Soil pH: Acid (<6.0), Neutral (6.0-8.0). Drainage: Good Drainage, Moist. Height: 0 ft. 8 in. - 3 ft. 0 in.. Spread: 0 ft. 8 in. - 1 ft. 0 in.. Spacing: 12 inches-3 feet. Growth rate: Medium. Maintenance: Medium. Propagation: Seed. Regions: Coastal, Mountains, Piedmont.

Harvesting

The small, ridged seeds are formed in the second year from July to September. The fruit and seeds are poisonous to birds.

Type: Schizocarp.

Harvest time: Fall, Summer

Bloom time: Summer

Edibility: Leaves as flavoring and garnish

Storage & Preservation

Fresh flat-leaf parsley stores best treated like cut flowers—trim stems and place in a jar of water, then cover loosely with a plastic bag and refrigerate. This method maintains peak flavor for 7-10 days. Alternatively, wrap unwashed parsley in slightly damp paper towels and store in the crisper drawer for 5-7 days.

For preservation, flat-leaf parsley excels at freezing. Wash, thoroughly dry, and freeze whole sprigs in freezer bags—frozen parsley works beautifully in cooked dishes though it loses crispness. Ice cube freezing works wonderfully: chop leaves finely, pack into ice cube trays with a little water or olive oil, and freeze for convenient cooking portions.

Drying works but reduces the vibrant flavor that makes flat-leaf parsley superior to curly varieties. Air-dry small bundles in a dark, well-ventilated area, or use a dehydrator at 95°F. For maximum flavor retention, consider making parsley paste by blending fresh leaves with olive oil—freeze in small portions for up to six months.

History & Origin

Origin: Europe

Advantages

+Attracts: Butterflies
+Wildlife value: Host plant for swallowtail butterfly.
+Edible: Leaves as flavoring and garnish

Considerations

-Toxic: Low severity

Companion Plants

Plant Together

Tomatoes

Parsley repels tomato hornworms and aphids while tomatoes provide light shade

Carrots

Parsley improves carrot flavor and growth, while carrots help loosen soil for parsley roots

Asparagus

Parsley attracts beneficial insects that protect asparagus from asparagus beetles

Roses

Parsley repels rose beetles and aphids while attracting beneficial predatory insects

Chives

Both herbs repel similar pests and enhance each other's growth without competition

Peppers

Parsley provides ground cover and attracts beneficial insects that control pepper pests

Corn

Parsley attracts parasitic wasps that control corn borers and other corn pests

Broccoli

Parsley attracts beneficial insects that prey on cabbage worms and other brassica pests

Keep Apart

Lettuce

Parsley's strong root system can compete for nutrients and stunt lettuce growth

Mint

Both are aggressive spreaders that compete for space and nutrients

Caraway

Inhibits parsley seed germination and can stunt established parsley growth

Nutrition Facts

Calories

36kcal(2%)

Protein

2.97g(6%)

Fiber

3.3g(12%)

Carbs

6.33g(2%)

Fat

0.79g(1%)

Vitamin C

133mg(148%)

Vitamin A

421mcg(47%)

Vitamin K

1640mcg(1367%)

Iron

6.2mg(34%)

Calcium

138mg(11%)

Potassium

554mg(12%)

Per 100g serving. % Daily Value based on 2,000 calorie diet. Source: USDA FoodData Central (FDC #170416)

Pests & Disease Resistance

Resistance

Generally resistant to most diseases when grown in well-drained conditions

Common Pests

Aphids, carrot fly, armyworms, swallowtail butterfly caterpillars

Diseases

Crown rot, leaf spot, powdery mildew in humid conditions

Frequently Asked Questions

How long does flat-leaf parsley take to grow from seed?▼

Flat-leaf parsley takes 70-90 days from seed to first harvest, with germination occurring in 14-28 days. Indoor-started plants can be harvested about 10 days earlier than direct-sown seeds. The key is soaking seeds 24 hours before planting to speed germination, as parsley is naturally slow to start but grows vigorously once established.

Can you grow flat-leaf parsley in containers?▼

Yes, flat-leaf parsley thrives in containers with at least 12 inches of depth to accommodate its taproot. Use a wide pot (8+ inches) for best yields and ensure drainage holes prevent crown rot. Container plants need more frequent watering but often produce more tender leaves than garden-grown plants, making them perfect for kitchen windowsills.

What's the difference between flat-leaf and curly parsley?▼

Flat-leaf parsley delivers significantly more flavor with higher concentrations of essential oils, making it preferred by chefs worldwide. The flat leaves chop more easily and integrate better into dishes, while curly parsley is primarily ornamental. Flat-leaf varieties also show better cold tolerance and continue producing later into the season than their curly counterparts.

Is flat-leaf parsley good for beginners?▼

Absolutely—flat-leaf parsley is very forgiving once established and tolerates various growing conditions. The main challenge for beginners is patience during slow germination, but soaking seeds beforehand helps significantly. It's nearly impossible to kill once growing, handles harvesting mistakes well, and provides continuous yields with minimal care requirements.

When should I plant flat-leaf parsley?▼

Plant flat-leaf parsley 2-3 weeks before your last frost date, as it tolerates light freezes well. For transplants, start seeds indoors 6-8 weeks before the last frost. In mild winter areas (zones 8-10), plant in fall for winter harvests. Succession plant every 3-4 weeks through late summer for continuous harvests.

Does flat-leaf parsley come back every year?▼

Flat-leaf parsley is biennial, producing leaves the first year and flowers/seeds the second year before dying. However, it self-seeds readily in zones 6-9, creating the appearance of a perennial. For best leaf production, treat it as an annual and replant yearly, harvesting volunteer seedlings as they appear.