Heliotropium arborescens Marine - Garden Heliotrope
Heliotropium arborescens Marine - Garden Heliotrope
Heliotropium arborescens Marine - Garden Heliotrope
Heliotropium arborescens Marine
Garden Heliotrope, Cherry pie plant
The plant was very difficult to get started, but the late flowering is very beautiful now.
Denise, 07/10/2025
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Available in 1 sizes
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.
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Description
The 'Marine' Heliotrope is a famous variety of Peruvian Heliotrope with a fragrant dark blue flowering. Its flower umbels appear throughout the summer and autumn, filling the garden or terrace with fragrance in the evening. This tender shrubby perennial is often grown as a summer annual. It is also a beautiful plant for an orangery or conservatory, and easy to cultivate.
The Peruvian Heliotrope 'Marine' is a horticultural selection derived from Heliotropium arborescens (synonym: Heliotropium peruvianum), also known as "Saint-Fiacre's Herb", a botanical species belonging to the Boraginaceae family native to South America, particularly the highlands of southern Peru. In the wild, it is a bushy shrub. It can be grown in a pot (protected from frost in winter) or in the ground as a perennial. Its hardiness does not exceed -4 °C (24.8°F) at its lowest.
The 'Marine' Heliotrope quickly forms a well-branched bushy clump reaching about 40cm (16in) in all directions. Its stems, which lignify as they age, bear leaves that are 3 to 8cm (1 to 3in) long, ovate, puckered, rough to the touch, and a very dark green. The small flowers, in shades of dark blue-violet, are grouped in irregular, wide inflorescences measuring 10 to 15cm (4 to 6in) in diameter. They exude a sweet fragrance with hints of vanilla and bitter almond, especially in the evening after a warm day. This flowering period lasts from July to October, or even until January for a plant grown in a conservatory. The leaves theoretically persist in winter.
The Peruvian Heliotrope was very popular during the Belle Époque, it has a somewhat theatrical charm, just like Gloxinias. It pairs perfectly with yellow to orange flowers and silver foliage in summer borders or containers. To accompany it, consider coastal Cinerarias, Artemisias, Nemophila, and California poppies...
Note: Please be aware that our plug plants are professional products intended for experienced gardeners. Upon receipt, transplant and store them in a sheltered location (conservatory, greenhouse, cold frame...) at a temperature above 14 °C (57.2°F) for a few weeks before planting them outdoors once the risk of frost has passed.
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Heliotropium arborescens Marine - Garden Heliotrope in pictures
Flowering
Foliage
Plant habit
Botanical data
Heliotropium
arborescens
Marine
Boraginaceae
Garden Heliotrope, Cherry pie plant
Cultivar or hybrid
Planting and care
Heliotropium arborescens 'Marine' is planted in May, spaced 30-40cm (12-16in) apart, in a fresh, rich, humus-rich and well-drained soil, in full sun, sheltered from the wind. Beware of powdery mildew. Susceptible to frost below -4 °C, this plant is grown as a summer annual or in a pot to overwinter indoors. Regularly apply fertilizer to potted plants.
Planting period
Intended location
Care
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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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.