📍 Jersey City, NJ · Zone 7b · Last frost Sunday, April 5, 2026
✏️ ChangeWhen to Plant Rosemary in Jersey City, New Jersey (07310)
Location
Jersey City, New Jersey
ZIP Code
07310
USDA Zone
7b
Last Frost
Sunday, April 5, 2026
📅 Your 2026 Planting Dates
Start Seeds Indoors
Sunday, January 25, 2026
Transplant Outdoors
Sunday, April 19, 2026
Based on last frost Sunday, April 5, 2026 · Zone 7b
Pro tip: Start Rosemary seeds indoors 10 weeks before your last frost date, then transplant outdoors around Sunday, April 19, 2026.
🌿 Plant Details
☀️ Growing Requirements
☀️
Sun
Full Sun (6+ hours)
💧
Water
Low (drought tolerant)
↔️
Spacing
24" apart
🌱
Planting Depth
0.25" deep
Seeds typically germinate in 14-21 days
Ready to Plant Rosemary in Jersey City?
Get your seeds now so they're ready by Sunday, January 25, 2026.
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🤝 Good Companions
Full Companion Planting Guide for Rosemary
See which plants help Rosemary thrive, which to keep away, and raised bed layout tips →
🛠️ Supplies You'll Need
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Common Rosemary Varieties
Popular cultivars to look for at your local nursery or seed supplier.
Tuscan Blue
Vigorous upright rosemary with large, intensely fragrant leaves — excellent for cooking.
Arp
One of the most cold-hardy rosemaries, surviving to Zone 6 with protection.
Blue Spires
Tall, upright variety with blue-toned flowers; fragrant and great for hedges.
Prostrate (Irene)
Low-growing trailing rosemary that cascades over walls and containers beautifully.
🌾 Seed Saving Guide
🟡 ModerateWhen to Harvest Seed
Collect seeds from dried flower clusters in late summer after flowering.
Processing
Strip dried flower clusters, separate seeds from chaff. Surface sow — seeds need light to germinate.
Seed Viability
Up to 2 years when stored cool, dark, and dry.
Pro Tip
Rosemary seed germination rates are low (20–30%). Stem cuttings give far more reliable results.
Raised Bed Planting Guides
A 4×8 bed fits 8 plants of Rosemary. See plant counts, spacing grids, and companion pairings for every bed size →
Frequently Asked Questions
When should I plant Rosemary in Jersey City, New Jersey? +
In Jersey City (Zone 7b), start Rosemary seeds indoors around Sunday, January 25, 2026 and transplant outdoors around Sunday, April 19, 2026.
What is the last frost date for Jersey City, New Jersey? +
The average last spring frost date for Jersey City, New Jersey (ZIP 07310) is around Sunday, April 5, 2026. This is based on NOAA climate normals for USDA Zone 7b.
How long does Rosemary take to grow? +
Rosemary typically matures in about 120 days from transplanting. In Jersey City, that means you can expect harvest around Sunday, April 19, 2026 plus 120 days.
Should I start Rosemary indoors or direct sow in New Jersey? +
Rosemary should be started indoors 10 weeks before your last frost date. In Jersey City, that means starting around Sunday, January 25, 2026.
📚 More Rosemary Planting Guides
Other Plants for Jersey City
Growing Rosemary in Zone 7b
Rosemary (Salvia rosmarinus) is a popular garden vegetable. In Jersey City, New Jersey, which is in USDA Hardiness Zone 7b, you should start seeds indoors around Sunday, January 25, 2026.
Your average last frost date is Sunday, April 5, 2026. Plan to transplant your Rosemary seedlings outdoors around Sunday, April 19, 2026, about 2 weeks after your last frost date.