When to Plant Snapdragon in Madison, New York (13402)

Location

Madison, New York

ZIP Code

13402

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

🌿 Plant Details

Scientific Name Antirrhinum majus

Days to Maturity 60 days

Mature Height 12-36"

Spread 12"

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

12" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 10-21 days

Ready to Plant Snapdragon in Madison?

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

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🤝 Good Companions

TomatoVegetable Garden

See the full companion planting guide for Snapdragon →

🛠️ 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

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Allow seed pods to dry and turn brown on the spike. Small holes in pods will open when ripe.

Processing

Shake dry pods over a bowl to collect tiny seeds. Dry 1 additional week.

Seed Viability

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

Pro Tip

Many snapdragons are OP but some are hybrid. Seeds are tiny — handle carefully during collection.

🪴

Raised Bed Planting Guides

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

Frequently Asked Questions

When should I plant Snapdragon in Madison, New York? +

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

What is the last frost date for Madison, New York? +

The average last spring frost date for Madison, New York (ZIP 13402) is around Saturday, April 25, 2026. This is based on NOAA climate normals for USDA Zone 5b.

How long does Snapdragon take to grow? +

Snapdragon typically matures in about 60 days from transplanting. In Madison, that means you can expect harvest around Saturday, May 9, 2026 plus 60 days.

Should I start Snapdragon indoors or direct sow in New York? +

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

📚 More Snapdragon Planting Guides

🗺️

Snapdragon in New York

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 5b Snapdragon Guide

All cities in your zone · Avg dates

→

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Growing Snapdragon in Zone 5b

Snapdragon (Antirrhinum majus) is a popular garden vegetable. In Madison, New York, 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 Snapdragon seedlings outdoors around Saturday, May 9, 2026, about 2 weeks after your last frost date.