is oregano cold hardy
Oregano is a perennial that is cold hardy down to United States Department of Agriculture (USDA) Hardiness Zone 6. Although it does best in full sun, it will tolerate partial shade. While fertile soil is not required, oregano grows best aided by fertilizer and mulch. The best soil for oregano drains well.osemary is usually grown as an annual in colder climates. It is perennial in USDA Hardiness Zone 8 and warmer. Some varieties can be cold hardy down to Zone 7. A member of the mint family, this herb grows well both in pots and in the ground.