Md. Code Ann., Agric. § 12-102

Unless another penalty specifically is provided elsewhere in this article, any person found guilty of a second or subsequent violation of any provision of the same title, is subject to a fine not exceeding $1,000, or imprisonment not exceeding one year, or both, with costs imposed in the discretion of the court. For the purposes of this section, a second or subsequent violation is one which has occurred within two years of any prior violation of this title and which arises out of a separate set of circumstances.