- Seed soaking: Marjoram seeds do not require soaking before planting.
- Germination requirements: Marjoram seeds require light to germinate, so do not cover them with soil, or plant marjoram seeds about 1/8 inch deep in well-draining soil.
- Temperature range for germination: Marjoram seeds germinate best at temperatures between 60-70°F (15-21°C).
- Days until germination: Marjoram seeds typically germinate within 7-14 days.
- Indoor vs outdoor planting: Marjoram can be started indoors 6-8 weeks before the last frost date or sown directly outside after the danger of frost has passed.
- USDA hardiness zone and frost hardiness: Marjoram is hardy in USDA zones 6-9 and can withstand light frost.
- Annual vs perennial: Marjoram is a perennial herb in warmer climates and an annual in colder climates.
- Seed spacing and thinning: Plant marjoram seeds about 8-10 inches apart and thin to one plant per pot or 12-18 inches apart in the garden.
- Plant spacing: Space marjoram plants 12-18 inches apart in the garden.
- Sunlight requirements: Marjoram requires full sun and 6-8 hours of direct sunlight per day.
- Height range for mature plants: Marjoram can grow up to 2 feet tall.
- Transplanting: Transplant marjoram seedlings outside after the danger of frost has passed and the soil has warmed up.
- Flowering: Marjoram produces small, white or pink flowers in mid to late summer.
