Growing Sorrel in Zone 4A

Sorrel is an underused perennial herb with a sharp, lemony flavor. It’s one of the first edible greens to emerge each spring.

Zone 4A has a short growing season — start seeds indoors when possible and use season-extending techniques like cold frames and row covers.

Top Growing Tips

• Perennial in most zones; dies back in winter, returns reliably
• Young leaves are mildest; larger leaves get more intensely sour
• Remove flower stalks promptly to prevent bolting and keep leaves coming
• Add to soups, egg dishes, and sauces for bright lemony flavor
• High in oxalic acid — eat in moderation, especially if prone to kidney stones

Companion Planting

Good companions: strawberries, onions

Avoid planting near: High-pH soil companions

Harvest Timeline

Year-round in mild climates; harvest young outer leaves from established plants

About Zone 4A

USDA Hardiness Zone 4A has an average last spring frost around May 8 and first fall frost around Sep 25. All planting dates above are calculated from these frost dates. Your specific location may vary — check with your local extension office for the most accurate dates.