When to Plant Valerian in Macedonia, Iowa (51549)

Location

Macedonia, Iowa

ZIP Code

51549

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 Valerian seeds indoors 8 weeks before your last frost date, then transplant outdoors around Saturday, May 9, 2026.

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🌿 Plant Details

Scientific Name Valeriana officinalis

Days to Maturity 365 days

Mature Height 36-60"

Spread 24"

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

24" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 14-21 days

Ready to Plant Valerian in Macedonia?

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

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🤝 Good Companions

Vegetable GardenEarthworm attractor

🤝

Full Companion Planting Guide for Valerian

See which plants help Valerian 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

🟢 Easy

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Harvest seed heads just as they begin to turn brown — they shatter quickly when fully ripe.

Processing

Cut seed heads into a bag, dry 1 week, shake to release seeds. Seeds are very light — winnow carefully.

Seed Viability

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

Pro Tip

Valerian self-sows readily and can spread aggressively in ideal conditions.

🪴

Raised Bed Planting Guides

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

Frequently Asked Questions

When should I plant Valerian in Macedonia, Iowa? +

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

What is the last frost date for Macedonia, Iowa? +

The average last spring frost date for Macedonia, Iowa (ZIP 51549) is around Saturday, April 25, 2026. This is based on NOAA climate normals for USDA Zone 5b.

How long does Valerian take to grow? +

Valerian typically matures in about 365 days from transplanting. In Macedonia, that means you can expect harvest around Saturday, May 9, 2026 plus 365 days.

Should I start Valerian indoors or direct sow in Iowa? +

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

📚 More Valerian Planting Guides

🗺️

Valerian in Iowa

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 5b Valerian Guide

All cities in your zone · Avg dates

→

Other Plants for Macedonia

Blackberry Blueberry Raspberry Strawberry Basil Chamomile Chives Cilantro Dill Lavender Lemon Balm Marjoram Mint Oregano Parsley Rosemary Sage Tarragon Thyme Acorn Squash Artichoke Arugula Asparagus Beefsteak Tomato Beet Bell Pepper Bok Choy Broccoli Brussels Sprout Butternut Squash Cabbage Cantaloupe Carrot Cauliflower Cayenne Pepper Celery Cherry Tomato Chili Pepper Collard Green Common Bean Cucumber Eggplant Endive Fennel Garlic Grape Tomato Green Bean Habanero Pepper Head Lettuce Heirloom Tomato Honeydew Melon Jalapeño Pepper Kale Kohlrabi Leaf Lettuce Leek Lima Bean Mustard Okra Onion Parsnip Pea Poblano Pepper Pole Pea Potato Pumpkin Radicchio Radish Rhubarb Roma Tomato Rutabaga Serrano Pepper Shallot Snap Pea Snow Pea Spaghetti Squash Spinach Squash Sweet Corn Sweet Potato Swiss Chard Tomato Turnip Watermelon Zucchini Sunflower Marigold Zinnia Nasturtium Cosmos Echinacea (Coneflower) Petunia Black-eyed Susan Apple Tree Pear Tree Peach Tree Plum Tree Sweet Cherry Tree Lemon Tree Borage Lemongrass Ginger Stevia Tomatillo Edamame Fava Bean Mâche Mizuna Sorrel Shishito Pepper Banana Pepper Watermelon Radish Napa Cabbage Popcorn Broccoli Raab Catnip Lemon Verbena Bee Balm Anise Lovage Chervil Summer Savory Dahlia Snapdragon Pansy Sweet Pea Morning Glory Hollyhock Larkspur Bachelor Button Columbine Impatiens Salvia (Annual) Sweet Alyssum Celosia Lupine Verbena Elderberry Grape Vine Red Currant Gooseberry Serviceberry Fig Tree Avocado Tree Persimmon Tree Olive Tree

Growing Valerian in Zone 5b

Valerian (Valeriana officinalis) is a popular garden vegetable. In Macedonia, Iowa, 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 Valerian seedlings outdoors around Saturday, May 9, 2026, about 2 weeks after your last frost date.