GartenGretel is the gardening and floristry brand of Annegret Petasch, a trained horticultural engineer and master florist. Drawing on her professional expertise and personal experience, Annegret shares practical guidance to help people care for plants and create floral designs, even without a naturally green thumb. The website features gardening and greenhouse articles, plant-care advice, quick tips, recipes, videos, and answers to common questions, including guidance on orchids and houseplant pests.

Visitors can explore the Hofladen in Obergurig, open on Saturdays from 9 a.m. to noon or by appointment. It offers seasonal plants, selected home and gift items, and individually made floristry available by preorder. Services include bouquets, arrangements, table and room decorations, designs for celebrations and special occasions, funeral flowers, and custom floral work. The online shop also features craft kits, floristry supplies, favorite tools, and garden accessories; suitable plants may be available for shipping when conditions allow.

GartenGretel also offers online courses, video courses, and garden workshops, with event tickets and gift vouchers available.