AusCann Group Holdings chair Mal Washer and director Cheryl Edwardes have advised they will retire from the medical cannabis company's board, with major shareholder Merchant Group planning to nominate one new director.

AusCann Group Holdings chair Mal Washer and director Cheryl Edwardes have advised they will retire from the medical cannabis company's board, with major shareholder Merchant Group planning to nominate one new director.