Propagation: Seed in AO 25/40 10/10
Temperature:75°F Humidity: 75-85% Germination time:10-15 days.
Root /grow: Approximate transplant time: Summer: 4-6 weeks. Winter: 6 weeks.
Transplanting: To slab or NFT when plants are 1” high/ 2-3 true leaves. (Slabs are best)
PLANT SPACING : 1 inch centers
Special nutrient requirements: None
Growing time to harvest: (after transplanting) Summer: 5 weeks. Winter: 6 weeks. Number of harvests: 5 +
Yield: Summer: 2 lbs per 5 ft. NFT trough. Winter: 1 lbs. per 10 ft. NFT trough.
Light: Full sun, grows poorly in low light and generally succumbs to fungus.
SUPPLEMENTAL LIGHTING: 700 ft. candles at bench; 14 hors/day during short day months will help, but loss to infection will occur.
Sensitive to: Fungal infections: Extremely sensitive to a variety of fungi.
Insects: White fly (leaf miner).
Notes: Care must be taken to control fungus infection in marjoram. Humidity must be kept low, especially during the short day months to grow year round; supplemental light is necessary if days are shorter than 10.5-11 hours. Do not harvest more than half the leaf area at any one time.