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When to Plant Rosemary in Lititz, Pennsylvania (17543)

Location

Lititz, Pennsylvania

ZIP Code

17543

USDA Zone

7a

Last Frost

Friday, April 10, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Friday, January 30, 2026

Transplant Outdoors

Friday, April 24, 2026

Based on last frost Friday, April 10, 2026 · Zone 7a

Pro tip: Start Rosemary seeds indoors 10 weeks before your last frost date, then transplant outdoors around Friday, April 24, 2026.

🌿 Plant Details

Scientific Name Salvia rosmarinus
Days to Maturity 120 days
Mature Height 24-48"
Spread 24"
Type Shrub
Fruit Size N/A

☀️ 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 Lititz?

Get your seeds now so they're ready by Friday, January 30, 2026.

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🤝 Good Companions

BeanCabbageCarrotSage
🤝

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

cultivar

Vigorous upright rosemary with large, intensely fragrant leaves — excellent for cooking.

Arp

cultivar

One of the most cold-hardy rosemaries, surviving to Zone 6 with protection.

Blue Spires

cultivar

Tall, upright variety with blue-toned flowers; fragrant and great for hedges.

Prostrate (Irene)

cultivar

Low-growing trailing rosemary that cascades over walls and containers beautifully.

🌾 Seed Saving Guide

🟡 Moderate
✅ Open-pollinated — seeds grow true to parent

When 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 Lititz, Pennsylvania? +

In Lititz (Zone 7a), start Rosemary seeds indoors around Friday, January 30, 2026 and transplant outdoors around Friday, April 24, 2026.

What is the last frost date for Lititz, Pennsylvania? +

The average last spring frost date for Lititz, Pennsylvania (ZIP 17543) is around Friday, April 10, 2026. This is based on NOAA climate normals for USDA Zone 7a.

How long does Rosemary take to grow? +

Rosemary typically matures in about 120 days from transplanting. In Lititz, that means you can expect harvest around Friday, April 24, 2026 plus 120 days.

Should I start Rosemary indoors or direct sow in Pennsylvania? +

Rosemary should be started indoors 10 weeks before your last frost date. In Lititz, that means starting around Friday, January 30, 2026.

Other Plants for Lititz

Growing Rosemary in Zone 7a

Rosemary (Salvia rosmarinus) is a popular garden vegetable. In Lititz, Pennsylvania, which is in USDA Hardiness Zone 7a, you should start seeds indoors around Friday, January 30, 2026.

Your average last frost date is Friday, April 10, 2026. Plan to transplant your Rosemary seedlings outdoors around Friday, April 24, 2026, about 2 weeks after your last frost date.