Marjoram Sweet Italian

Oregano

75d to harvest

Marjoram Sweet Italian unfurls with a softly fragrant, honeyed perfume—sweetly aromatic and gently floral, with a mellow oregano character that lingers on the palate. The foliage is tender and finely textured, forming compact, leafy mounds whose leaves hold their flavor beautifully when dried or used fresh. Grow this perennial for steady harvests and for the way its fragrant sprigs lift everyday dishes, from herb-forward sauces to savory roasts and quick pickling blends.

Crop Dates

Growing note: In frost-free Zone 11a, grow this cool-season crop during the cooler dry season (October–February).

Milestone	Date
Start Indoors	—
Climate	Frost-Free Climate
Transplant / Sow Outdoors	Oct 1st
Harvest Begins	Dec 15th
Harvest Ends	Feb 28th

Crop Details

Trait	Value
Days to Maturity	75
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	60
Min Night Temp (°F)	50
Harden Off (days)	10

Frequently Asked Questions

What pest or disease most commonly affects Origanum majorana (sweet marjoram), and how can I manage it?

The most common problem for sweet marjoram is powdery mildew, which shows up as a white, dusty coating on leaves during humid or crowded growth. Improve airflow by spacing plants and watering at the base so foliage stays dry, then remove heavily affected leaves early. If mildew persists, spray an appropriate sulfur-based fungicide according to the label and avoid harvesting for the label’s re-entry interval.

How often should I water sweet marjoram (Origanum majorana) during its main growing phase?

During active growth, water when the top 1 inch of soil feels dry, then soak thoroughly and let excess drain—marjoram dislikes consistently wet soil. Aim for about weekly deep watering outdoors unless you’re in hot, windy conditions, in which case you may need more frequent checks. Mulch lightly if needed, but keep mulch off the crown to prevent rot.

How do I know when sweet marjoram (Origanum majorana) is ready to harvest?

Harvest when plants are about 70–80 days from sowing and have formed well-branched growth with lots of leaf clusters. For the best flavor, pick in the morning after dew dries, before flowers open; you can pinch individual sprigs regularly to encourage fresh, bushy growth. If you see buds forming or early bloom starts, harvest soon because leaf quality declines after full flowering.