When to Plant Verbena in Kalskag, Alaska (99607)

Location

Kalskag, Alaska

ZIP Code

99607

USDA Zone

Last Frost

Wednesday, May 20, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Wednesday, March 25, 2026

Transplant Outdoors

Wednesday, June 3, 2026

Based on last frost Wednesday, May 20, 2026 · Zone 3b

Pro tip: Start Verbena seeds indoors 8 weeks before your last frost date, then transplant outdoors around Wednesday, June 3, 2026.

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🌿 Plant Details

Scientific Name Verbena hybrida

Days to Maturity 85 days

Mature Height 6-18"

Spread 18"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Moderate (1 inch/week)

↔️

Spacing

12" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 14-21 days

Ready to Plant Verbena in Kalskag?

Get your seeds now so they're ready by Wednesday, March 25, 2026.

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🤝 Good Companions

MarigoldPetuniaSalvia

🤝

Full Companion Planting Guide for Verbena

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

🛠️ Supplies You'll Need

🌱 Seed Starting Trays 🪴 Seed Starting Mix 💡 Grow Lights 🌡️ Heat Mat 🌍 Flower Garden Soil ✂️ Pruning Shears 🚿 Watering Can

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🌾 Seed Saving Guide

🟡 Moderate

⚠️ Many varieties are F1 hybrid — look for OP/heirloom types

When to Harvest Seed

Allow flower clusters to dry on the plant. Collect dry seed clusters.

Processing

Break apart dry clusters to release seeds, dry 1 week in open envelope.

Seed Viability

Up to 2 years when stored cool, dark, and dry.

Pro Tip

Most garden verbenas are F1 hybrids. Verbena bonariensis is a good open-pollinated alternative that grows true from seed.

🪴

Raised Bed Planting Guides

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

Frequently Asked Questions

When should I plant Verbena in Kalskag, Alaska? +

In Kalskag (Zone 3b), start Verbena seeds indoors around Wednesday, March 25, 2026 and transplant outdoors around Wednesday, June 3, 2026.

What is the last frost date for Kalskag, Alaska? +

The average last spring frost date for Kalskag, Alaska (ZIP 99607) is around Wednesday, May 20, 2026. This is based on NOAA climate normals for USDA Zone 3b.

How long does Verbena take to grow? +

Verbena typically matures in about 85 days from transplanting. In Kalskag, that means you can expect harvest around Wednesday, June 3, 2026 plus 85 days.

Should I start Verbena indoors or direct sow in Alaska? +

Verbena should be started indoors 8 weeks before your last frost date. In Kalskag, that means starting around Wednesday, March 25, 2026.

📚 More Verbena Planting Guides

🗺️

Verbena in Alaska

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 3b Verbena Guide

All cities in your zone · Avg dates

→

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Growing Verbena in Zone 3b

Verbena (Verbena hybrida) is a popular garden vegetable. In Kalskag, Alaska, which is in USDA Hardiness Zone 3b, you should start seeds indoors around Wednesday, March 25, 2026.

Your average last frost date is Wednesday, May 20, 2026. Plan to transplant your Verbena seedlings outdoors around Wednesday, June 3, 2026, about 2 weeks after your last frost date.