New Jersey gardeners can plant parsley in early spring, as the plant tolerates light frosts. Knowing the best time to plant parsley in new jersey is key to getting a strong, healthy harvest. This guide covers everything from soil temps to fall planting.
Parsley is a biennial herb that many treat as an annual. It grows well in New Jersey’s climate, but timing matters. Plant too early and cold soil stunts growth. Plant too late and summer heat makes it bolt.
Let’s break down the ideal windows for your garden. We’ll look at spring, fall, and even indoor starts.
Best Time To Plant Parsley In New Jersey
The absolute best time to plant parsley in New Jersey is 2 to 4 weeks before the last expected spring frost. For most of the state, that falls between mid-March and mid-April.
Check your specific hardiness zone. North Jersey (zones 6a-6b) usually sees last frost around late April. South Jersey (zones 7a-7b) can plant earlier, often by late March.
Parsley seeds germinate slowly in cool soil. Soil temperature should be at least 50°F (10°C) for best results. A soil thermometer helps you avoid guessing.
Spring Planting Window
Spring is the primary season for parsley. Here are the key dates:
- North Jersey: Plant outdoors from April 1 to April 30.
- Central Jersey: Plant from March 25 to April 20.
- South Jersey: Plant from March 15 to April 15.
You can also start seeds indoors 6 to 8 weeks before the last frost. This gives you a head start. Transplant seedlings after hardening them off for a week.
Parsley seeds need light to germinate. Sow them shallow, just 1/4 inch deep. Keep the soil moist but not waterlogged. Germination can take 2 to 4 weeks.
Fall Planting Window
Fall planting works well for a second harvest. The best time to plant parsley in new jersey for fall is 8 to 10 weeks before the first expected frost.
First frost dates vary: North Jersey around mid-October, South Jersey early November. So plant fall parsley from mid-July to mid-August.
Fall parsley often tastes sweeter after light frosts. The cold converts starches to sugars. Cover plants if a hard freeze is forecast.
Mulch around the base to insulate roots. Parsley can survive winter in milder parts of New Jersey, especially with protection.
Indoor Starting Guide
Starting seeds indoors gives you control. Here’s a step-by-step:
- Fill seed trays with moist seed-starting mix.
- Sow 2-3 seeds per cell, 1/4 inch deep.
- Cover lightly with soil or vermiculite.
- Place under grow lights or in a bright window.
- Keep soil temperature around 65-70°F (18-21°C).
- Water from the bottom to avoid damping off.
- Thin to one strong seedling per cell after true leaves appear.
Harden off seedlings over 7-10 days. Start with 1 hour outdoors, increase daily. Transplant on a cloudy day to reduce shock.
Soil Preparation For Parsley
Parsley likes rich, well-draining soil. Test your soil pH first. Ideal range is 6.0 to 7.0, slightly acidic to neutral.
Amend heavy clay with compost or aged manure. Sandy soil needs organic matter to hold moisture. Work in 2-3 inches of compost before planting.
Parsley is a heavy feeder. Add a balanced fertilizer like 10-10-10 at planting time. Side-dress with compost tea mid-season for a boost.
Choosing The Right Location
Parsley needs full sun to partial shade. In New Jersey’s hot summers, afternoon shade helps prevent bolting. Morning sun with dappled afternoon shade is ideal.
Ensure good air circulation to prevent fungal diseases. Space plants 6-8 inches apart in rows 12 inches apart. Raised beds work well for drainage.
Companion planting helps. Parsley attracts beneficial insects. Plant near tomatoes, asparagus, or roses. Avoid planting near mint or lettuce.
Watering And Mulching
Keep soil consistently moist but not soggy. Parsley has shallow roots. Water deeply once a week, more in dry spells.
Mulch with straw or shredded leaves. This retains moisture, suppresses weeds, and keeps roots cool. Apply 2-3 inches around plants.
Drip irrigation is best. Overhead watering can cause leaf diseases. Water at the base to keep foliage dry.
Common Parsley Varieties For New Jersey
Choose varieties suited to your climate. Here are top picks for New Jersey gardens:
- Italian Flat-Leaf: More flavorful and heat-tolerant. Best for cooking.
- Curly Parsley: Decorative and cold-hardy. Great for garnish.
- Hamburg Parsley: Grown for its edible root. Tolerates cold well.
- Giant of Italy: Large leaves, vigorous growth. Good for fall planting.
Flat-leaf parsley is easier to clean and chop. Curly parsley holds up better in cold weather. Both work in New Jersey’s climate.
Seed Starting Tips
Parsley seeds have a reputation for slow germination. Soak seeds in warm water for 24 hours before planting. This softens the seed coat.
Some gardeners freeze seeds for a week before soaking. This mimics winter stratification. It can improve germination rates.
Be patient. Seeds can take 3-4 weeks to sprout. Keep soil consistently warm and moist. Use a heat mat if starting indoors.
Transplanting Seedlings Outdoors
Wait until seedlings have 3-4 true leaves before transplanting. Harden them off gradually. Choose a cloudy day or late afternoon for planting.
Dig holes slightly larger than the root ball. Space plants 6-8 inches apart. Water well after transplanting.
Protect young plants from strong winds. Use row covers if a late frost threatens. Parsley can handle light frost but not hard freezes.
Direct Sowing In The Garden
Direct sowing is simpler but slower. Prepare the bed by raking soil smooth. Sow seeds 1/4 inch deep, 2-3 seeds per inch.
Thin seedlings to 6-8 inches apart when they are 2 inches tall. Keep the strongest ones. Water gently to avoid washing seeds away.
Mark rows clearly. Parsley seeds are tiny and easy to lose. Use a label or string to remember where you planted.
Caring For Parsley Throughout The Season
Parsley needs regular care for continuous harvest. Here are key tasks:
- Fertilize: Apply a balanced liquid fertilizer every 4-6 weeks.
- Weed: Keep the bed weed-free. Parsley competes poorly with weeds.
- Pinch: Pinch off flower stalks as they appear. This extends leaf production.
- Harvest: Pick outer leaves first. Leave the inner rosette to grow.
Parsley is a biennial. In its second year, it will flower and set seed. Most gardeners replant annually for best flavor.
Pest And Disease Management
Common pests include aphids, parsley worms, and slugs. Hand-pick caterpillars. Use insecticidal soap for aphids.
Parsley worms are actually swallowtail butterfly larvae. Consider leaving a few plants for them. They rarely cause major damage.
Slugs love moist conditions. Use beer traps or diatomaceous earth. Remove debris where slugs hide.
Fungal diseases like leaf spot occur in wet weather. Space plants for air flow. Avoid overhead watering. Remove infected leaves promptly.
Harvesting Parsley At The Right Time
Start harvesting when plants have at least 3-4 leaf segments. This is usually 70-90 days from seed. Cut stems near the base.
Harvest regularly to encourage bushier growth. Never take more than one-third of the plant at once. Leave enough leaves for photosynthesis.
Morning harvest is best. Leaves are crisp and full of flavor. Rinse and dry before storing.
Storing Fresh Parsley
Store parsley like fresh flowers. Trim stems and place in a glass of water. Cover loosely with a plastic bag. Refrigerate for up to 2 weeks.
You can also dry parsley. Hang bundles upside down in a dark, airy space. Crumble leaves into jars once dry.
Freezing preserves flavor well. Chop leaves and pack into ice cube trays with water or oil. Pop out cubes for soups and stews.
Extending The Growing Season
Use cold frames or row covers to plant earlier in spring. These protect against frost and warm the soil.
In fall, cover plants with frost cloth. Parsley can survive down to about 20°F (-6°C) with protection. Mulch heavily around roots.
For winter harvest, grow parsley in containers. Bring pots indoors to a sunny window. It will produce leaves all winter.
Succession Planting For Continuous Harvest
Plant a new batch every 3-4 weeks. This ensures a steady supply. Start seeds indoors while earlier plants are growing.
In New Jersey, you can do 2-3 successions in spring. One more in late summer for fall harvest. Stagger plantings by variety too.
Keep a garden journal. Note planting dates and weather. Adjust timing next year based on your results.
Troubleshooting Common Problems
Yellow leaves often mean overwatering or poor drainage. Let soil dry slightly between waterings. Improve drainage with organic matter.
Leggy seedlings indicate insufficient light. Use grow lights 2-3 inches above plants. Rotate trays for even growth.
Bolting (flowering) happens in heat or stress. Plant in partial shade. Keep soil consistently moist. Harvest regularly to delay bolting.
Poor germination can be due to old seeds. Parsley seeds remain viable for 2-3 years. Test old seeds by sprouting a few on damp paper towel.
Soil Testing And Amendments
Test soil every 2-3 years. Extension offices offer affordable tests. Results tell you pH and nutrient levels.
Add lime to raise pH if below 6.0. Add sulfur to lower pH if above 7.0. Follow package rates based on test results.
Work in compost annually. It improves soil structure and adds nutrients. Avoid fresh manure, which can burn roots.
Companion Planting Benefits
Parsley attracts beneficial insects like hoverflies and parasitic wasps. These control aphids and caterpillars naturally.
Plant parsley near tomatoes to improve tomato flavor. It also repels asparagus beetles. Roses benefit from parsley’s pest-repelling properties.
Avoid planting near mint, which can cross-pollinate. Keep parsley away from lettuce, as they compete for nutrients.
Container Gardening For Parsley
Parsley grows well in containers. Choose a pot at least 8 inches deep with drainage holes. Use quality potting mix.
Place containers in a spot with morning sun and afternoon shade. Water more frequently than garden plants. Containers dry out faster.
Fertilize every 2-3 weeks with diluted liquid fertilizer. Container plants need more nutrients. Repot if roots become crowded.
Frequently Asked Questions
Can I plant parsley in the summer in New Jersey?
Summer planting is possible but challenging. Heat causes parsley to bolt. Plant in partial shade and keep soil moist. Start seeds indoors to avoid heat stress.
How long does parsley take to grow from seed?
Parsley takes 70-90 days to reach harvest size from seed. Germination alone can take 2-4 weeks. Starting indoors speeds things up.
Should I soak parsley seeds before planting?
Yes, soaking seeds in warm water for 24 hours improves germination. Some gardeners also freeze seeds for a week before soaking. This mimics natural winter conditions.
Can parsley survive winter in New Jersey?
Parsley can survive mild winters with protection. Mulch heavily and use row covers. In colder zones, grow in containers and bring indoors.
What is the difference between flat-leaf and curly parsley?
Flat-leaf parsley has stronger flavor and is better for cooking. Curly parsley is more decorative and cold-hardy. Both grow well in New Jersey.
Final Tips For Success
Start with fresh seeds each year. Old seeds have lower germination rates. Store seeds in a cool, dark place.
Keep a consistent watering schedule. Parsley hates drought stress. Mulch helps maintain even moisture.
Harvest often to encourage new growth. Don’t let plants flower unless you want seeds. Flowering ends leaf production.
Rotate planting locations each year. This prevents soil-borne diseases. Wait 3 years before planting parsley in the same spot.
Enjoy your homegrown parsley. It adds fresh flavor to countless dishes. With the right timing, you’ll have a bountiful harvest from spring through fall.