

Hyssop Tricolour Mixed seeds - Hyssopus officinalis
Hyssop Tricolour Mixed seeds - Hyssopus officinalis
Hyssopus officinalis Tricolour Mixed
Hyssop
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View all →This plant carries a 6 months recovery warranty
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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.
Seed-only orders are dispatched by sealed envelope. The delivery charge for seed-only orders is €3.90.
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Description
Hyssop (Hyssopus officinalis) is a fragrant perennial herb with a bushy habit, which is covered in small flowers in late summer. It is offered to you in an exclusive mix of blue, white, and pink. A lovely addition, essential in the herb garden, rockery, and Mediterranean border.
Native to the northern coast of the Mediterranean and Asia Minor, Hyssopus officinalis is hardy and evergreen in temperate climates. It belongs to the Lamiaceae family, its flowers are arranged in spikes on stems that lignify over the years. Its leaves are pointed and dark green, and they are used as a condiment. It has an airy bushy habit, reaching a height of 60 cm (24in) and a width of 40 cm (16in).
Hyssop is renowned for its many virtues: in cooking, its fragrance evokes thyme and rosemary, and it can be used as a substitute for them in many meat or fish dishes. It is also a medicinal plant that treats digestive and respiratory ailments. Finally, it is an excellent plant for bees and butterflies.
It will find its place in the vegetable garden or in a herb garden, alongside thyme, rosemary, marjoram, or even its relative, Agastache. You can also plant it in a rockery or in a Mediterranean border, and associate it with sages and rockroses. Hardy down to -15°C (5°F), it is advisable to grow it in a pot, which should be protected in winter in the harshest regions.
Cultivating Hyssop is easy, it likes full sun, well-drained ordinary soil, even rocky soil. In clay soil, don't give up but plant it on a mound, mixing gravel with the soil to improve drainage. It requires little maintenance: an annual pruning at the end of flowering or in March will give it a more compact shape.
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Flowering
Foliage
Plant habit
Botanical data
Hyssopus
officinalis
Tricolour Mixed
Lamiaceae
Hyssop
Mediterranean
Other Thompson and Morgan seeds
View all →Planting and care
Sow Hyssop seeds from April to May in trays, pots, etc. in a special seed compost that should be placed in a propagator or a warm place to maintain an optimal temperature of 15 to 20°C (59 to 68°F). Sow in a well-drained soil, barely covering the seed. Germination usually takes 14 to 21 days.
Transplant the plants when they are large enough to handle. Then harden them off and plant them outdoors when all risk of frost has passed. Space the plants 60cm (24in) apart. Plant them in a well-drained soil, in a sunny location.
Hyssop is a resilient and low-maintenance plant. It adapts to most soils, even calcareous and clay ones, as long as they are properly drained. In heavy soil, plant on a mound and incorporate stones or coarse sand into the garden soil to improve drainage.
Sowing period
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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).

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The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:
- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
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 planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
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.