Growing Rosie O'Day Alyssum Flower Garden SeedsTaxonomy: Lobularia maritima
- Other Names: Sweet Alyssum, Sweet Alison
- Seed Type: Annual
- Sow Indoors or Outdoors: Rosie O'Day Alyssum has a hardiness comparable to most wildflowers and is most commonly broadcasted directly after the frost. For earliest blooms, begin seeds 6 – 8 weeks indoors prior to the frost. Alyssum flower seeds will take 7 – 21 days to germinate in full lighting. Plants are just as popularly grown indoors as they are outdoors and may reseed in optimal climates.
- Days to Flower Maturity: 56 – 63 days
- Hardiness Zone: 3 – 9
- Seed Planting Depth: Lightly press 2 – 3 seeds without covering or broadcast directly
- Plant Spacing: 6”
- Growth Habit: dwarfed 6 – 9” tall trailing mound with a 10 – 12” spread of tiny 4-petaled blooms
- Soil Preference: Average, medium moisture, well-drained
- Light Preference: Full sun – Partial shade
- Diseases/Pests/Troubleshooting: Rosie O'Day Alyssum flowers are considered to be some of the easiest flowers to grow directly from seeds. Blooming may decline in consistently hot summers, but continue strong in the cooling fall. Alyssum has no serious susceptibility to any pests or diseases.
- Flower Colors: Shades of lavender, violet, and fuchsia
Rosie O'Day Alyssum seeds debuted as a 1961 All-America Selections Bedding Plant Winner for its sweet fragrance and low-maintenance. Lobularia maritima, or more commonly known as Alyssum or Sweet Alyssum, is a low-growing species native to the Mediterranean and Canary Islands. Sweet Alyssum is one the most fragrant blooms available and one of the most award-winning. The genus names Lobularia is derived from the Latin word lobules which means "small pod." The specific name maritima meaning "coastal." Annual Alyssum flower garden seeds - Rosie O'Day.