Origanum heracleoticum - Greek Oregano
Origanum heracleoticum - Greek Oregano
Origanum heracleoticum
Greek Oregano, Winter Marjoram
Eighteen months on, the three young plants have thrived in a rocky spot. The small leaves do not lose their fragrance over time, like other oreganos. Very satisfied with this plant. Thyme scent, but slightly more subtle.
Elisabeth, 30/09/2025
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We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
Description
Origanum vulgare subsp. hirtum, also known as Origanum heracleoticum, in French Green Oregano or Greek Oregano, is a subspecies of Common Oregano endemic to the eastern Mediterranean Basin. Used in aromatherapy for its powerful and rare essential oil, this oregano is the most fragrant of all. It is a small bushy plant with green and hairy leaves that offers a beautiful white, fragrant, and honey-bearing flowering in summer. Like all oreganos, this one is planted in a well-drained soil and is resistant to summer drought. Its small aromatic leaves with a deliciously pungent flavour perfume all dishes based on tomatoes, pizzas, but also olive oil, all summer vegetables, grilled dishes, and fish...
Wild Marjoram or Oregano (Origanum vulgare) is sometimes confused with Garden Marjoram (Origanum majorana) but they are two distinct species.
Green Oregano grows spontaneously in Greece and Turkey. In nature, it grows in pine forests, scrublands, and at the edges of cultivated land, on both non-calcareous and calcareous soils, up to 1500m (4921ft) altitude. Its cold resistance is good (-15°C (5°F) at its lowest), but it will be lower in excessively wet soils in winter. This herbaceous perennial plant belongs to the Lamiaceae family, like thyme and lavender. It forms a clump and reaches 40cm (16in) in height and 30cm (12in) in width. This wild Marjoram offers small white flowers during summer. It is a particularly interesting honey-bearing plant to install in the garden. Once well rooted, it does not require watering in summer. The drier the soil, the more fragrant the vegetation.
In the kitchen:
The leaves, added at the end of cooking, are frequently used in tomato sauces and pizzas. They also enhance salads, flavour vinegar and olive oil, pasta and stuffed vegetables, ratatouille, grilled dishes... Infusions can also be made with them. Wild Marjoram is renowned for its antiseptic, analgesic, and antispasmodic properties.
Harvesting: It is done as needed, from May to September. Preferably pick the stems in the morning when the aroma is most pronounced.
Storage: Fresh leaves can be kept in the refrigerator for several days. They can also be dried or frozen. For drying, hang the stems of the wild Marjoram in a bouquet, upside down, in the shade, then store the leaves in airtight containers.
Harvest
Plant habit
Foliage
Planting and care
Green Oregano grows in all types of well-drained soils, as it fears excessive humidity, especially in winter. It tolerates limestone soils well. Plant it in full sun, or in partial shade in our hottest and sunniest regions. Planting is done in spring or early autumn.
In the ground:
The plants should be spaced 30cm (12in) apart in all directions. If your soil is heavy, add gravel and compost and plant in a slightly raised bed. You can also plant oregano between the stones in a rockery. Dig a hole (3 times the size of the root ball), place the root ball and cover with fine soil. Firmly press down and water.
In a pot: Install a layer of gravel at the bottom of the pot to facilitate drainage. Fill it with a mixture of compost and sand, place the root ball and cover with soil. Water regularly, but not too often, without allowing water to stagnate in the saucer.
In autumn, cut back the clump to 15cm (6in) above the ground. Water the young plants until they establish. Afterwards, water only in case of severe drought.
Oregano can be propagated by dividing clumps in spring and by spontaneous sowing.
Cultivation
Care
Intended location
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.
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