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Marjoram · Culinary-herb
Sweet Marjoram
Annual · Lamiaceae
Sweet marjoram is a compact culinary herb with a softer, sweeter flavor than oregano and a tender branching habit that suits borders, beds, and patio pots. It is easy for beginners as long as the soil drains well and the plant is not overwatered.
At a Glance
Days to Maturity
75–90 days
Sun
6+ hours
full sun 6-8 hours or light afternoon shade in very hot climates
Spacing
12–18 "
Seed Start
6–8 weeks
before transplant
Container
Yes
2+ gallon pot
Height
1–2 ft
Zone Planting Guide
Growing Guide
Germination
Germination Time
7–14 days
Optimal Temp
70°F
Seed Depth
0.12"
Transplanting
Min Soil Temp
60°F
Harden Off
5 days
Watering
Weekly Water
0.75–1 "
Needs
Moderate
Method
Base watering
Soil
pH Range
6–7.5
Soil Type
Well-drained, moderately fertile soil; sandy or gritty mixes are fine if watered regularly.
Resilience
Heat: Moderate
Cold: Low
Drought: Moderate
Common Problems
root-rot
Cause: Poor drainage and overwatering suffocate roots and collapse the crown.
Prevention: Use fast-draining soil, let the surface dry slightly between waterings, and avoid waterlogged pots.
aphids
Cause: Tender tips can attract aphids in sheltered beds or indoor starts.
Prevention: Pinch back infested tips and wash off colonies early.
Nutrition
Feeding Intensity
Moderate feeder
Recommended Recipes
Root drench
Harvest
Harvest when stems are leafy, tender, and before many flowers open.
Expected Yield
0.25–0.75 lbs/plant
Storage
5 days — Use fresh quickly, refrigerate loosely wrapped stems, or dry bunches in a dark airy room.
Sources
seed_catalog
Seeds 'n Such
university
University of Minnesota Extension
Sweet Marjoram Planting Dates by Zone
Planting dates for Sweet Marjoram vary by USDA hardiness zone. Select your zone below for frost dates, start-indoors timing, and a full monthly planting calendar.
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