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.