Sow at a depth of approx.
0.23 inches (0.6 cm) and aim for a distance of at least
1.95 inches (5.0 cm) between Lavender plants. Soil temperature should be kept higher than
15°C / 59°F to ensure good germination.
By our calculations, you should look at sowing Rosea about 1 days after your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Rosea is a hardy plant.
Angustifolius is Latin for "thin"or “narrow”.