my LocalPlanting

When to Plant Lupine in Dana, Illinois (61321)

Location

Dana, Illinois

ZIP Code

61321

USDA Zone

5b

Last Frost

Saturday, April 25, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Saturday, March 28, 2026

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

Pro tip: Sow Lupine directly outdoors 4 weeks before your last frost date.

🌿 Plant Details

Scientific Name Lupinus polyphyllus
Days to Maturity 365 days
Mature Height 24-48"
Spread 24"

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Moderate (1 inch/week)

↔️

Spacing

18" apart

🌱

Planting Depth

0.5" deep

Seeds typically germinate in 14-21 days

Ready to Plant Lupine in Dana?

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

* Affiliate links — we may earn a small commission at no extra cost to you.

🤝 Good Companions

CarrotBrassicasCorn

⚠️ Avoid Planting Near

Fennel
🤝

Full Companion Planting Guide for Lupine

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

🛠️ Supplies You'll Need

* Affiliate links — we may earn a small commission at no extra cost to you.

🌾 Seed Saving Guide

🟢 Easy
✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Allow seed pods to dry on the plant — pods will turn black and begin to twist when fully ripe.

Processing

Collect before pods explode and fling seeds. Shell pods, dry seeds 1 week.

Seed Viability

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

Pro Tip

Lupine seeds have a hard coat — nick with sandpaper or soak 24 hours before sowing to improve germination.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 14 plants of Lupine. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Lupine in Dana, Illinois? +

In Dana (Zone 5b), direct sow Lupine outdoors around Saturday, March 28, 2026.

What is the last frost date for Dana, Illinois? +

The average last spring frost date for Dana, Illinois (ZIP 61321) is around Saturday, April 25, 2026. This is based on NOAA climate normals for USDA Zone 5b.

How long does Lupine take to grow? +

Lupine typically matures in about 365 days from direct sowing. In Dana, that means you can expect harvest around Saturday, March 28, 2026 plus 365 days.

Should I start Lupine indoors or direct sow in Illinois? +

Lupine does best when direct sown outdoors. In Dana, sow directly around Saturday, March 28, 2026.

Other Plants for Dana

Growing Lupine in Zone 5b

Lupine (Lupinus polyphyllus) is a popular garden vegetable. In Dana, Illinois, which is in USDA Hardiness Zone 5b, you should direct sow seeds around Saturday, March 28, 2026.

Your average last frost date is Saturday, April 25, 2026. Lupine grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.