📍 Saint Petersburg, FL · Zone 10b · Last frost Thursday, January 15, 2026
✏️ ChangeWhen 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
☀️ 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
⚠️ Avoid Planting Near
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
🟢 EasyWhen 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.