Alyssum saxatiles

Alyssum saxatiles - A Bright Yellow Beauty for Rock Gardens

Alyssum saxatiles, also known as Rock Madwort and offered by OSC Seeds, is a compact alpine perennial that brings a burst of vivid yellow to rock gardens and borders. Native to Turkey and Central Europe, this hardy plant thrives in well-drained, sunny soils. Its grey-green foliage adds a touch of refinement, while its vibrant blooms from May to June brighten rocky landscapes and retaining walls. Hardy to Zone 4, it’s an excellent choice for challenging environments.

Spread: 20 to 30 cm  
Plant Height: 15 cm  
Seeds per Packet: Approximately 150 seeds  
Companion Plants: Aubrieta, campanula, sedum  
Enemy Plants: None known  

How to Grow:  
Start seeds indoors 6 to 8 weeks before the last frost in a soil-free mix. Maintain a temperature of 20°C for germination, which typically takes 5 to 10 days, then move seedlings to a cooler space (15°C) under lights. To improve germination, moisten seeds and pre-chill for 10 to 15 days before sowing. Harden off young plants before transplanting them outdoors in sunny, well-drained locations.

Alyssum saxatiles is the perfect perennial for rock gardens and alpine landscapes, delivering vibrant yellow blooms and refined foliage that add texture and color to sunny spaces.