How to grow Marjoram
Updated October 2026
Sweet marjoram is a small, sweetly scented Mediterranean herb, a gentler cousin of oregano, used in soups, sauces, stuffings and meat dishes. It loves sun, sharp drainage and heat, and is a tender perennial grown as an annual in most of the country.
📖 Our full guide: How to Grow Marjoram
Not to be confused with: Sweet marjoram is a close relative of oregano, with a milder, sweeter flavor.
Where to plant
Grow sweet marjoram in full sun in average, well-drained soil; sandy loam suits it best. It has excellent heat and drought tolerance once established, which makes it a good choice for hot Southern summers, but it rots in poorly drained, saturated soil.
It is perennial only where winters are mild, about zone 9 and warmer. Elsewhere it is grown as an annual or in pots.
- Florida, the Gulf South, Texas, the Desert Southwest and California: grows well; plant in fall to spring in Florida and give it sharp drainage through the rainy season.
- Most other regions: grow it as a summer annual, starting seed indoors or buying plants and setting them out around the last frost.
- Pots can come indoors before frost, though NC State notes marjoram usually does not overwinter well inside.
How to plant
- Start seed indoors 6 to 8 weeks before the last spring frost, or sow outdoors about two weeks before the last frost. Press the tiny seed onto the surface or cover it very lightly.
- Plant out about 10 inches apart in full sun once seedlings are sturdy.
- Water in, then let the soil dry a little between waterings.
Watering and feeding
Water moderately and let the soil dry between waterings; marjoram prefers the lean, dry side and rots in wet soil. Avoid heavy feeding, which weakens the flavor.
Pruning and care through the year
- Cut back stems before the flowers appear to keep plants bushy and leafy.
- Grow it in a pot in cold areas or where summer rain keeps the ground wet.
Harvesting
Pick leaves and stem tips as needed. The flavor is best just before the small white flowers open in summer. Dry bunches in a shady, airy place and store the leaves in airtight jars.
Growing in pots
Marjoram is ideal for pots, window boxes and hanging baskets in a gritty, free-draining mix. Water only when the top of the mix is dry.
Companion planting
Marjoram is a low, sun-loving herb that fits at the edge of vegetable beds, where its flowers attract bees and other pollinators.
Good companions
- Bell pepper Shares the same sun and warm-season timing.
- Tomato A traditional pairing at the bed edge; the flowers bring in pollinators.
- Bush beans A low herb that fits along bean rows.
- Brassicas Its flowers attract beneficial insects to the garden.
Pests and diseases
Marjoram has no serious pest or disease problems. Wet soil is the main danger.
Pests to watch for
- Aphids Clusters on young shoots.
- Spider mites Fine speckling on leaves in hot, dry weather.
Diseases to watch for
- Root rot Wilting and collapse in poorly drained, saturated soil.
- Powdery mildew White powdery coating on leaves of crowded plants.
Common questions
What is the difference between marjoram and oregano?
They are close relatives. Sweet marjoram has a milder, sweeter flavor and is less cold hardy than oregano, which is a hardy perennial.
Does marjoram come back every year?
Only where winters are mild, about zone 9 and warmer. Elsewhere it is grown as an annual.
When should I harvest marjoram?
Pick leaves as needed; the flavor is best just before the plant flowers. Cutting back stems before flowering also keeps plants bushy.
Why is my marjoram dying?
Wet soil is the usual cause. Marjoram needs sharp drainage and rots in saturated soil, so grow it in a raised bed or a pot of gritty mix.
Is marjoram safe for pets?
NC State Extension notes sweet marjoram can be toxic to pets, so keep dogs and cats from eating it.
Sources we checked: NC State Extension Gardener Plant Toolbox: Origanum majorana.
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