Sempervivum calcareum ‘Mrs. Giuseppi’ is a striking green rosette with contrasting, dark red tips. It is a fast-growing and cold-hardy Sempervivum and produces lots of offsets on very short stolons. This plant is a cultivated hybrid developed by British horticulturist Giuseppe Giuseppi in the early 20th century.  

A fully grown rosette of Sempervivum ‘Mrs. Giuseppi’ typically measures 4 inches wide, while the colony of offsets can quickly spread to form attractive groundcover. The plant forms compact rosettes with fleshy, pointed leaves that can shift in color through the seasons, ranging from green to rich burgundy-red tones. This seasonal shift adds ornamental value, ensuring the plant provides interest year-round. 

Like other sempervivums, it is commonly referred to as a “hen and chicks” type plant because of its habit of forming tight rosettes with numerous offsets that cluster around the main rosette.

This hybrid is best grown in rock gardens, alpine troughs, containers, and dry borders.

When it blooms, usually in summer, it produces tall flower stalks up to 8–10 inches tall, crowned with clusters of star-shaped, pinkish-purple flowers that attract pollinators like bees and butterflies.

Like other sempervivums, it is monocarpic, meaning the mother rosette will die after flowering. 

When it comes to care, this Sempervivum succulent is extremely drought-tolerant and should be watered using the “soak and dry” method, allowing the soil to fully dry between watering.

Overwatering can quickly lead to root rot. Use a well-drained succulent soil mix for healthy growth of the plant.

Outdoors, it thrives in full sun, which enhances its coloration, and it is hardy in USDA zones 4–9, tolerating both cold winters and hot summers if kept dry. 

Indoors, place it in the brightest location possible, such as a south-facing window, and maintain average room temperatures.

Fertilizer is rarely needed, but a light feeding with a balanced, diluted succulent fertilizer once in spring can boost growth. Pruning is minimal, mainly removing dead rosettes after they flower and cleaning away withered leaves. 

The Sempervivum ‘Mrs. Giuseppi’ is non-toxic to dogs, cats, and birds, making it a safe choice for households with pets. Its unique aspects lie in its ability to withstand harsh conditions, from drought to freezing temperatures, while maintaining ornamental appeal. The seasonal shift in leaf coloration and its ability to form dense mats of rosettes give it a special place in rock gardens and succulent arrangements. 

Overall, the Sempervivum ‘Mrs. Giuseppi’ is a hardy, colorful, and low-maintenance succulent that adapts well to a wide range of garden settings. Its alpine heritage and hybrid vigor make it particularly tough, while its compact rosettes and bright flowers add decorative charm. Easy to propagate, safe for pets, and long-lived in the right conditions, this plant remains a beloved choice for both beginner and experienced gardeners who appreciate the beauty of succulents that thrive with minimal care.