Although oregano is available in the form of seeds most gardeners prefer to purchase in the form of plants so they can get a taste of the vegetable before the crop gets established in the garden. If you do decide to grow from seed then sow it indoors about two months before the last frost.
When the seedlings are growing transplant them into the garden. Space plant about a foot (30 cm) apart. For excellent flavor do not fertilize, do not over water and harvest before the plants flower.