Description
Marine Heliotrope Seeds 5375.
Heirloom Annual Featuring Dense Clusters of Deep Violet-Blue Blooms with an Intense Vanilla Fragrance.
Marine Heliotrope (Heliotropium arborescens) is a prized open-pollinated heirloom annual celebrated for its magnificent, sweet vanilla-scented blooms and dark, textured foliage. Bushy plants reach 20 to 45 cm in height and produce heavy clusters of rich, deep violet-blue flowers continuously through the summer. Perfect for containers, patio pots, and front-of-border plantings where its intoxicating fragrance can be fully enjoyed, Heliotrope is both heat and drought tolerant once established, as well as deer resistant. Planting Marine Heliotrope alongside bright lime-green foliage plants creates a breathtaking visual contrast in the garden.
Quick Seed Details
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Product Code: 5375
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Botanical Name: Heliotropium arborescens ‘Marine’
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Type: Open-Pollinated Heirloom Annual
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Height: 20–45 cm
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Plant Spacing: 30 cm apart
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Light Requirement: Full Sun (Tolerates Partial Shade)
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Soil Preference: Moist, rich, well-draining garden soil
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Germination: Up to 20 days
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Seed Depth: Barely cover (Lightly mist)
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Seed Count: Approx. 100 seeds per packet (1,800 seeds per gram)
What you need to know to Plant & Grow
Heliotrope requires an early start indoors and gentle care while young to establish robust plants for outdoor display.
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Indoor Starting (Required): Start seeds indoors 6 to 8 weeks before your last expected spring frost date using a moist, soil-less seed-starting mix. Barely cover the fine seeds with growing medium, as light aids germination.
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Germination Conditions: Water lightly using a fine mist to avoid dislodging seeds. Maintain a steady soil temperature of 21°C for up to 20 days until seedlings emerge.
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Growing On & Transplanting: Once sprouted, grow seedlings under grow lights at a slightly cooler temperature of 16–18°C.
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Planting Out: Harden off young plants thoroughly before moving them outdoors. Transplant into garden beds or containers after all risk of spring frost has passed, spacing plants 30 cm apart.
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Safety & Care Notes: Prefers full sun and consistently moist soil for optimal blooming. Note: All parts of the heliotrope plant are poisonous if ingested; handle with care around pets and small children.
Why Marine Heliotrope Seeds belong in Your Garden
If you want rich violet-blue colour paired with an unmistakable, sweet vanilla perfume, Marine Heliotrope is an exceptional selection. Its compact habit, deer resistance, and striking contrast potential with chartreuse foliage make it a beloved heirloom for Canadian garden borders and patio displays.





