Alyssum Clear Crystal White Seeds

Alyssum Clear Crystal White Seeds produce vigorous, fragrant white flowers on controlled mounds of tetraploid Lobularia maritima. Grow them for bright edging, containers, hanging baskets and in-ground mass planting.

Ready for a fragrant white edge? Follow our Alyssum Grow Guide for Clear Crystal White for shallow sowing, regional timing and bloom care.

Quick Grow Facts

• Plant type: Cool-season annual; may be short-lived in mild frost-free conditions
• Scientific name: Lobularia maritima (historical synonym Alyssum maritimum)
• Series and outcome: Clear Crystal® White; controlled mounds with fragrant large white flowers
• Sowing: Sow 5–6 individual seeds or one whole multi-seed pellet per cell
• Sowing time: Cool to mild regional windows; avoid hard frost, peak heat and saturated humid periods
• Position: Full sun; light afternoon shade in very hot districts
• Depth and light: Cover individual fine seeds very lightly. If sowing a multi-seed pellet, use a thicker, loose vermiculite layer and enough water to dissolve it. Give bright light after emergence.
• Germination: Aim for about 21–22°C in a warm propagation tray; check daily for uneven emergence
• Spacing: 15 cm for dense edging; 20–25 cm for fuller mounds
• Height and spread: About 15–25 cm high and 30–36 cm wide
• Flowering: About 8–10 weeks from sowing in favourable conditions

Growing Notes

• Pre-moisten fine seedling mix and keep it evenly moist without waterlogging. If using multi-seed pellets, sow each one whole; do not crush it or place several pellets in one small cell.
• Transplant the small clump once roots hold the plug together; do not pull every seedling apart.
• Harden plants over 5–7 days and trim after a flower flush to encourage fresh bloom.
• Use the wider spacing when you want each controlled white mound to reach its full spread.

Supplied by Ubuntuberg Seeds.