I grew Italian oregano underneath my tomatoes this year and it was great. Again, drying/freezing is necessary for next year.
Oregano (US / or UK ), scientifically named Origanum vulgare by Carolus Linnaeus, is a common species of Origanum, a genus of the mint family (Lamiaceae). It is native to warm-temperate western and southwestern Eurasia and the Mediterranean region. Oregano is a perennial herb, growing from 20–80 cm tall, with opposite leaves 1–4 cm long. Oregano will grow in a pH range between 6.0 (mildly acid) and 9.0 (strongly alkaline) with a preferred range between 6.0 and 8.0.
Oregano growing in a pot