Sempervivum 'Commander Hay'

Sempervivum 'Commander Hay': Bold Form with Fiery Undertones

Striking in both colour and form, Sempervivum 'Commander Hay' produces large, tightly packed rosettes with deep red centres and olive-green outer leaves that intensify in cool weather. This classic hens-and-chicks variety adds a bold, geometric presence to rock gardens, troughs, and gravel beds. Hardy and drought tolerant, it spreads steadily by offsets to create a sculptural ground-level display. In summer, mature rosettes may send up tall bloom stalks bearing clusters of starry pink flowers—a dramatic flourish before setting seed.

Plant Characteristics:

• Height: 5–10 cm (rosettes), up to 20 cm in bloom
• Spread: 20–30 cm, clumping and offsetting
• Flower Colour: Soft pink (on mature rosettes)
• Flowering Period: Midsummer
• Foliage: Deep red centres with olive-green outer leaves; colour intensifies in cool weather
• Sunlight Requirements: Full sun
• Soil Requirements: Very well-drained, sandy or rocky soil

Uses and Benefits: Sempervivum 'Commander Hay' brings bold texture and rich colour to alpine gardens, container plantings, green roofs, and gravel paths. Its architectural rosettes hold up beautifully through heat, drought, and cold, making it ideal for xeriscaping and tough landscape pockets. Offset growth forms tidy colonies that fill space with structure and seasonal flair.

Companion Plants: Pair 'Commander Hay' with the electric chartreuse foliage of Sedum 'Angelina' for a vivid contrast that lasts all season. Introduce Dianthus 'Spiked Punch' for frilly, raspberry-pink blooms that echo the sempervivum’s red tones. Soften the scene with Festuca 'Elijah Blue', whose icy blue tufts offer cool texture and a grounding base.

Care Instructions: Plant in full sun with sharp drainage. Avoid overwatering—sempervivums prefer dry conditions and will rot in soggy soil. Remove bloom stalks after flowering and clear dead leaves to keep rosettes tidy. Offsets can be transplanted to spread the display or fill new spaces.

History: 'Commander Hay' is a time-honoured cultivar of Sempervivum, selected for its bold colouring and reliable growth. Like many hens-and-chicks, it descends from European mountain species and continues to be a favourite among alpine and dryland gardeners worldwide.

Final Thoughts: With its bold colour shifts and resilient nature, Sempervivum 'Commander Hay' offers year-round interest and sculptural beauty—perfect for gardeners seeking character, colour, and lasting performance in every season.