Description
Trailing Sapphire Lobelia Seeds 5595.
Cascading Annual Bursting with Deep Sapphire-Blue Blooms and White Star Centres.
Trailing Sapphire Lobelia (Lobelia erinus) is a charming open-pollinated variety specifically tailored for hanging baskets, window boxes, and mixed patio containers. Growing 7 to 15 cm in height with a graceful trailing habit, this cascading annual produces a profusion of intense, deep sapphire-blue flowers accented with contrasting white centres. Perfect for adding rich, cool tones and soft texture to container arrangements, Trailing Sapphire creates a waterfall of vibrant colour that thrives in partially shaded garden spaces throughout the summer months.
Quick Seed Details
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Product Code: 5595
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Botanical Name: Lobelia erinus ‘Sapphire’
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Type: Open-Pollinated Trailing Annual
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Height: 7–15 cm (Trailing habit)
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Plant Spacing: 15–20 cm apart
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Light Requirement: Partial Shade (Recommended in hot summer areas)
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Soil Preference: Moist, rich, well-draining soil
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Germination: 20–25 days (Slow and erratic; light-dependent)
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Seed Depth: Surface sow (Do not cover)
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Seed Count: Approx. 500 seeds per packet (35,000 seeds per gram)
What you need to know to Plant & Grow
Lobelia features microscopic seeds that require light to germinate and benefit from extra care and patience when starting indoors.
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Indoor Starting (Required): Start seeds indoors 8 weeks before your last expected spring frost. Surface sow the fine seeds onto a moist, soil-less growing medium—do not cover, as light is essential for germination.
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Watering Technique: Water carefully from below or mist gently with a spray bottle to avoid washing away or burying the fine seeds.
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Germination Conditions: Maintain a steady temperature of 24°C during the 20 to 25 day germination period. Sprouting can be slow and erratic, so maintain consistent soil moisture and warmth.
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Growing On & Transplanting: Once sprouted, move seedlings under growing lights at a cooler temperature of 15°C to encourage sturdy, compact growth. Harden off gradually before transplanting outdoors after all risk of spring frost has passed.
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Site Selection: Plant in a partially shaded location with rich, moist, well-draining soil. In regions with hot summers, partial shade is crucial to keep lobelia blooming vigorously without heat stress.
Why Trailing Sapphire Lobelia Seeds belong in Your Garden
If you want to create eye-catching container displays with deep, electric blue flowers and clean white accents, Trailing Sapphire Lobelia is an exceptional selection. Its cascading habit, rich contrast, and outstanding performance in shaded areas make it a classic favourite for Canadian gardeners looking to elevate hanging baskets and patio planters.
