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When to Plant Sorrel in Saint Petersburg, Florida (33708)

Location

Saint Petersburg, Florida

ZIP Code

33708

USDA Zone

10b

Last Frost

Thursday, January 15, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Thursday, December 18, 2025

Based on last frost Thursday, January 15, 2026 · Zone 10b

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

🌿 Plant Details

Scientific Name Rumex acetosa
Days to Maturity 60 days
Mature Height 12-24"
Spread 18"

☀️ Growing Requirements

☀️

Sun

Partial to Full Sun (4-6 hours)

💧

Water

Moderate (1 inch/week)

↔️

Spacing

12" apart

🌱

Planting Depth

0.5" deep

Seeds typically germinate in 7-14 days

Ready to Plant Sorrel in Saint Petersburg?

Get your seeds now so they're ready by Thursday, December 18, 2025.

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🤝 Good Companions

StrawberryCarrotHerb

⚠️ Avoid Planting Near

Fennel
🤝

Full Companion Planting Guide for Sorrel

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

🛠️ Supplies You'll Need

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🌾 Seed Saving Guide

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

When to Harvest Seed

Allow seed stalks to dry completely on the plant. Harvest before seeds drop.

Processing

Strip dried seed stalks, separate seeds from dried flower material, dry 1 week.

Seed Viability

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

Pro Tip

Sorrel self-sows freely once established — you may not need to actively save seed at all.

🪴

Raised Bed Planting Guides

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

Frequently Asked Questions

When should I plant Sorrel in Saint Petersburg, Florida? +

In Saint Petersburg (Zone 10b), direct sow Sorrel outdoors around Thursday, December 18, 2025.

What is the last frost date for Saint Petersburg, Florida? +

The average last spring frost date for Saint Petersburg, Florida (ZIP 33708) is around Thursday, January 15, 2026. This is based on NOAA climate normals for USDA Zone 10b.

How long does Sorrel take to grow? +

Sorrel typically matures in about 60 days from direct sowing. In Saint Petersburg, that means you can expect harvest around Thursday, December 18, 2025 plus 60 days.

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

Sorrel does best when direct sown outdoors. In Saint Petersburg, sow directly around Thursday, December 18, 2025.

Other Plants for Saint Petersburg

Growing Sorrel in Zone 10b

Sorrel (Rumex acetosa) is a popular garden vegetable. In Saint Petersburg, Florida, which is in USDA Hardiness Zone 10b, you should direct sow seeds around Thursday, December 18, 2025.

Your average last frost date is Thursday, January 15, 2026. Sorrel grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.