When to Plant Asparagus in Elm, Pennsylvania (17521)

Location

Elm, Pennsylvania

ZIP Code

17521

USDA Zone

Last Frost

Friday, April 10, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Friday, February 13, 2026

Transplant Outdoors

Friday, April 24, 2026

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

Pro tip: Start Asparagus seeds indoors 8 weeks before your last frost date, then transplant outdoors around Friday, April 24, 2026.

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🌿 Plant Details

Scientific Name Asparagus officinalis

Days to Maturity 730 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 8-21 days

Ready to Plant Asparagus in Elm?

Get your seeds now so they're ready by Friday, February 13, 2026.

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🤝 Good Companions

TomatoAsterDillCorianderParsleyBasilComfreyMarigold

⚠️ Avoid Planting Near

OnionGarlicPotato

🤝

Full Companion Planting Guide for Asparagus

See which plants help Asparagus thrive, which to keep away, and raised bed layout tips →

🛠️ Supplies You'll Need

🌱 Seed Starting Trays 🪴 Seed Starting Mix 💡 Grow Lights 🌡️ Heat Mat 🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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🌾 Seed Saving Guide

🟡 Moderate

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Allow red berries to ripen fully on female plants in late summer/fall.

Processing

Mash berries to release seeds, rinse, dry flat for 2 weeks.

Seed Viability

Up to 3 years when stored cool, dark, and dry.

Pro Tip

Asparagus is dioecious — only female plants produce berries. Male plants produce more spears, so save seed selectively.

Frequently Asked Questions

When should I plant Asparagus in Elm, Pennsylvania? +

In Elm (Zone 7a), start Asparagus seeds indoors around Friday, February 13, 2026 and transplant outdoors around Friday, April 24, 2026.

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

The average last spring frost date for Elm, Pennsylvania (ZIP 17521) is around Friday, April 10, 2026. This is based on NOAA climate normals for USDA Zone 7a.

How long does Asparagus take to grow? +

Asparagus typically matures in about 730 days from transplanting. In Elm, that means you can expect harvest around Friday, April 24, 2026 plus 730 days.

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

Asparagus should be started indoors 8 weeks before your last frost date. In Elm, that means starting around Friday, February 13, 2026.

📚 More Asparagus Planting Guides

🗺️

Asparagus in Pennsylvania

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 7a Asparagus Guide

All cities in your zone · Avg dates

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Other Plants for Elm

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Growing Asparagus in Zone 7a

Asparagus (Asparagus officinalis) is a popular garden vegetable. In Elm, Pennsylvania, which is in USDA Hardiness Zone 7a, you should start seeds indoors around Friday, February 13, 2026.

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