When to Plant Celery in Key Largo, Florida (33037)

Location

Key Largo, Florida

ZIP Code

33037

USDA Zone

11a

Last Frost

Thursday, January 1, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Thursday, October 23, 2025

Transplant Outdoors

Thursday, January 15, 2026

Based on last frost Thursday, January 1, 2026 · Zone 11a

Pro tip: Start Celery seeds indoors 10 weeks before your last frost date, then transplant outdoors around Thursday, January 15, 2026.

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🌿 Plant Details

Scientific Name Apium graveolens

Days to Maturity 130 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 8-28 days

Ready to Plant Celery in Key Largo?

Get your seeds now so they're ready by Thursday, October 23, 2025.

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🤝 Good Companions

CosmosDaisySnapDragon

⚠️ Avoid Planting Near

CornAster

🤝

Full Companion Planting Guide for Celery

See which plants help Celery 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

🔴 Difficult

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Celery is biennial — it seeds in year 2. Harvest umbels just before seeds shatter in summer.

Processing

Cut seed heads into bags, dry 2 weeks, thresh to release seeds.

Seed Viability

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

Pro Tip

In cold climates, dig celery in fall, store roots in a root cellar, and replant in spring for year-2 flowering.

Frequently Asked Questions

When should I plant Celery in Key Largo, Florida? +

In Key Largo (Zone 11a), start Celery seeds indoors around Thursday, October 23, 2025 and transplant outdoors around Thursday, January 15, 2026.

What is the last frost date for Key Largo, Florida? +

The average last spring frost date for Key Largo, Florida (ZIP 33037) is around Thursday, January 1, 2026. This is based on NOAA climate normals for USDA Zone 11a.

How long does Celery take to grow? +

Celery typically matures in about 130 days from transplanting. In Key Largo, that means you can expect harvest around Thursday, January 15, 2026 plus 130 days.

Should I start Celery indoors or direct sow in Florida? +

Celery should be started indoors 10 weeks before your last frost date. In Key Largo, that means starting around Thursday, October 23, 2025.

📚 More Celery Planting Guides

🗺️

Celery in Florida

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 11a Celery Guide

All cities in your zone · Avg dates

→

Other Plants for Key Largo

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 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 Valerian 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 Celery in Zone 11a

Celery (Apium graveolens) is a popular garden vegetable. In Key Largo, Florida, which is in USDA Hardiness Zone 11a, you should start seeds indoors around Thursday, October 23, 2025.

Your average last frost date is Thursday, January 1, 2026. Plan to transplant your Celery seedlings outdoors around Thursday, January 15, 2026, about 2 weeks after your last frost date.