When to Plant Thyme in Gretna, Nebraska (68028)

Location

Gretna, Nebraska

ZIP Code

68028

USDA Zone

Last Frost

Saturday, April 25, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Saturday, February 28, 2026

Transplant Outdoors

Saturday, May 9, 2026

Based on last frost Saturday, April 25, 2026 · Zone 5b

Pro tip: Start Thyme seeds indoors 8 weeks before your last frost date, then transplant outdoors around Saturday, May 9, 2026.

🌿 Plant Details

Scientific Name Thymus vulgaris

Days to Maturity 90 days

Mature Height 6-12"

Spread 12"

Type Ground cover

Fruit Size N/A

☀️ Growing Requirements

☀️

Sun

Full Sun (6+ hours)

💧

Water

Low (drought tolerant)

↔️

Spacing

12" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 14-21 days

Ready to Plant Thyme in Gretna?

Get your seeds now so they're ready by Saturday, February 28, 2026.

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🤝 Good Companions

CabbageEggplantPotatoStrawberry

🤝

Full Companion Planting Guide for Thyme

See which plants help Thyme 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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Common Thyme Varieties

Popular cultivars to look for at your local nursery or seed supplier.

Common Thyme

species

Classic culinary thyme with small, fragrant leaves; essential in French cooking.

Lemon Thyme

cultivar

Bright citrus-scented thyme with golden-edged leaves; lovely in fish dishes and teas.

Creeping Thyme

species

Low-growing groundcover thyme with dense mats of tiny flowers; great between pavers.

French Thyme

cultivar

Broader-leaved variety with milder, sweeter flavor preferred in Provençal cooking.

🌾 Seed Saving Guide

🟡 Moderate

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Harvest tiny seed pods when brown and dry — just before they shatter.

Processing

Strip dried stems over a fine mesh, dry extra 2 days, store in small envelopes. Seeds are very tiny.

Seed Viability

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

Pro Tip

Thyme seeds can vary in flavor intensity. Propagate from stem cuttings to preserve culinary quality.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 32 plants of Thyme. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Thyme in Gretna, Nebraska? +

In Gretna (Zone 5b), start Thyme seeds indoors around Saturday, February 28, 2026 and transplant outdoors around Saturday, May 9, 2026.

What is the last frost date for Gretna, Nebraska? +

The average last spring frost date for Gretna, Nebraska (ZIP 68028) is around Saturday, April 25, 2026. This is based on NOAA climate normals for USDA Zone 5b.

How long does Thyme take to grow? +

Thyme typically matures in about 90 days from transplanting. In Gretna, that means you can expect harvest around Saturday, May 9, 2026 plus 90 days.

Should I start Thyme indoors or direct sow in Nebraska? +

Thyme should be started indoors 8 weeks before your last frost date. In Gretna, that means starting around Saturday, February 28, 2026.

📚 More Thyme Planting Guides

🗺️

Thyme in Nebraska

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 5b Thyme Guide

All cities in your zone · Avg dates

→

Other Plants for Gretna

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Growing Thyme in Zone 5b

Thyme (Thymus vulgaris) is a popular garden vegetable. In Gretna, Nebraska, which is in USDA Hardiness Zone 5b, you should start seeds indoors around Saturday, February 28, 2026.

Your average last frost date is Saturday, April 25, 2026. Plan to transplant your Thyme seedlings outdoors around Saturday, May 9, 2026, about 2 weeks after your last frost date.