Growhard is an online gardening retailer operated by Gartencenter Berlin-Süd Sven Schmidt UG (haftungsbeschränkt), based at Geibelstraße 17c in Berlin. The company presents itself as a specialist for plants and gardening supplies, serving customers through an online shop and offering product guidance and garden tips.

Its range covers seeds and cuttings, nutrients, fertilizers, plant-care additives, soil, substrates, and propagation supplies. Growhard also sells pots, trays, saucers, and grow bags, alongside equipment for indoor cultivation, including LED, CMH, and NDL lighting, ventilation and climate-control products, fans, carbon filters, and measuring devices. Hydroponic growing supplies are also featured. The shop organizes products into categories such as biological plant cultivation and provides articles and tips to help customers plan gardening projects. Featured products include soil and coco mixes, worm humus, a soil tester, and ventilation equipment. Growhard highlights special offers and popular products, and invites visitors to subscribe to its newsletter for updates and deals.