French Thyme, also known as Summer Thyme, is hardy to zone 6, maybe zone 5 with some protection. The upright stems with small gray-green leaves are very aromatic and said to be the most flavorful of all the thymes and the variety preferred by chefs.
Perennial zone 5 -9
Germination: 10-21 days
Seed Planting Depth: on the surface, lightly cover
Starting Indoors/Outdoors: Start indoors 6-8 weeks before the last frost. Provide 65-75 degree soil temperature.Transplant 10-12" apart. Sow outdoors in the spring 1-2 weeks before last frost, a few seeds every 2-3", thin to 10-12" apart.
Light Needs: Full sun
Soil Needs: French Thyme needs average, well-drained soil
Uses: Culinary, medicinal, ornamental, attracts bees and beneficals