Greek Oregano — Growing reference
| Scientific name | Origanum vulgare subsp. hirtum |
|---|---|
| Seed germination (days) | 7–14 |
| Soil temperature for germination (°C) | 18.3–23.9 |
| First harvest or flowering (days) | 80–100 |
| Measured from | Transplant |
| Plant spacing (cm) | 30.5–45.7 |
| Mature height (cm) | 30.5–50.8 |
| Mature spread (cm) | 30.5–45.7 |
| USDA hardiness zones | 5–10 |
| Light | Full sun |
| Water | Low |
| Sowing method | indoor-start |
Growing directions
Surface-sow seeds by pressing them into barely moist, well-drained seed-starting mix without covering, as they need light to germinate. Greek oregano (also called Italian or true oregano) is the pungent, white-flowered subspecies prized in Mediterranean cooking; it has far stronger flavor than common Origanum vulgare. Plant in lean, gritty, alkaline-leaning soil in full sun — excessive fertility dilutes the essential oils that give it its distinctive bite. Cut plants back by one-third after flowering each year to keep them compact; harvest just as buds begin to open for peak aroma.
Source and local conditions
Typical planning ranges from OpenPlantDB (CC0). Cultivar, climate, season and growing method can change these values. Confirm the seed label and local guidance before planting.
Source & verification
OpenPlantDB · CC0