Lobelia Pendula Saphir Special

Lobelia Pendula Saphir Special Seeds

(Trailing Lobelia — Deep Blue with White Eye)

Lobelia erinus pendula is the trailing form of the species native to southern Africa — a naturally compact, free-flowering annual that has become one of the most widely planted container and basket plants in ornamental horticulture worldwide. The Saphir (Sapphire) variety is the most classic and iconic selection within the trailing lobelia range: a deep blue flower with white eye that is one of the most popular trailing lobelia varieties for hanging baskets.

Lobelia erinus var. pendula ‘Sapphire’ produces electric-blue flowers with a white eye — the combination of the intensely saturated cobalt-blue petals and the small, bright white central eye creates a bicolor effect of striking visual impact. The blue of Saphir Special is one of the truest, most saturated blues available in annual bedding plants — a quality that makes it invaluable in container displays where a genuine, vivid blue is needed.

The trailing habit of Lobelia pendula makes it a natural “spiller” in the classic container design framework. Stems cascade freely downward from baskets, window boxes, pots, and railing planters, producing a dense curtain of tiny flowers that cover the foliage completely during peak season. The plant is naturally branching and self-filling, requiring no pinching to achieve a full, generous trailing display.

Saphir produces a rich, shining blue cascade of flowers over a long period, rarely fading even in bright sunshine — an easy to grow annual deservedly popular for its versatility and long flowering period.
An important note for Gulf growers: trailing lobelia puts on its best show when temperatures are cool. When summer’s heat and humidity arrive, flowering declines significantly — but with pruning and relief from heat, plants may return for an autumn encore. In the Gulf, this makes lobelia an excellent October–April container plant, with peak performance from November through March. Plants that are cut back by half in mid-spring may rest through the hottest months and return to flowering as temperatures cool again in autumn.

Variety Details

• Variety: Saphir Special (Sapphire)
• Species: Lobelia erinus pendula
• Family: Campanulaceae
• Flower color: Deep electric blue with bright white eye
• Flower form: Small 5-lobed tubular flowers, 1–1.5 cm across
• Trailing length: 20–25 cm
• Height: 15–20 cm
• Spread: 25–30 cm
• Habit: Trailing, cascading, freely branching
• Germination: 10–21 days at 18–24°C with light
• Days to flower: 10–12 weeks from sowing

Key Features

• Classic trailing lobelia — one of the most beloved basket and container plants globally.
• Vivid deep electric-blue flowers with contrasting white eye — intense jewel-like color.
• Free-flowering and self-filling habit — dense cascading display with no pinching needed.
• Flowers rarely fade in bright sunshine — long-lasting color through the season.
• Excellent in hanging baskets, window boxes, containers, and railing planters.
• Attracts butterflies and small pollinators.
• Cool-season performer — ideal for Gulf autumn through spring.
• Easy to grow from seed with consistent moisture and warmth.

Plant Information

• Plant type: Tender annual (perennial in zones 9–11)
• Sun: Full sun to partial shade — partial shade preferred in hot climates
• Soil: Moist, well-drained, fertile soil or container mix
• Water: Keep consistently moist at all times — lobelia dislikes drying out
• Spacing: 10–15 cm apart; plant in clumps of 3–5 seedlings per position for best effect

Seed Germination

• Seed depth: Surface sow — press lightly into soil; do NOT cover; light required for germination
• Germination time: 10–21 days at 18–24°C
• Ideal germination temperature: 18–24°C
• Lobelia seeds are very small — sowing thinly is important.
• Mix seeds with fine sand to aid even distribution.
• Surface sow on moist, fine, well-drained seed-starting mix.
• Press very lightly without covering. Keep consistently moist throughout germination. Maintain at 18–24°C.
• Water from below where possible to minimize risk of damping off.
• Germination takes 10–21 days.
• Once seedlings emerge, they are very small and delicate for the first few weeks. Keep moist and in good light. When seedlings are large enough to handle, transplant in small clumps of 3–5 seedlings rather than individually — this gives a fuller, denser planting from the outset.

Growing Tips

• Lobelia pendula Saphir Special is an easy and rewarding trailing annual when its key requirement — consistent moisture — is met. Allow the soil or growing medium to dry even slightly, and plants will stop flowering and may not recover quickly.
• Start seeds 8–10 weeks before desired planting date.
• Surface sow with no covering, maintain moist conditions at 18–24°C. Pot on small clumps of seedlings into individual pots as they develop. Harden off gradually before moving to final outdoor containers.
• Plant in well-drained, moisture-retentive container mix in full sun to partial shade.
• In the Gulf, a position receiving morning sun and afternoon shade protection will maintain flowering performance longer and help plants survive the transition into warmer weather.
• Feed every two weeks with a balanced liquid fertilizer — once flowering is established, switch to a low-nitrogen, high-potassium fertilizer to maximize bloom production.
• Keep plants consistently moist — in containers this typically means daily watering in warm conditions.
  If flowering diminishes mid-season due to heat, cut plants back by half, reduce watering temporarily, and new growth and flowering will typically resume as temperatures cool.
• In Gulf conditions, lobelia performs as a cool-season container annual. Sow in August–September, transplant in October–November and enjoy peak flowering from November through March. As temperatures rise above 28°C in April, flowering will slow.
• Plants may be cut back and kept for an autumn repeat or replaced.

Gulf Planting Season

• Best sowing time in the Gulf: August–September (indoors)
• Transplanting: October–November
• Expected flowering: November–March (peak cool-season performance)
• Note: Flowering declines as temperatures rise above 28°C in spring. Cut plants back by half and reduce watering to encourage possible autumn re-flowering when temperatures cool. Plant in morning sun with afternoon shade protection for extended performance.

Garden and Container Uses

• Hanging baskets — the classic trailing lobelia use
• Window boxes and railing planters
• Mixed container combinations — “spiller” role
• Patio and balcony pots — cascading color over edges
• Ground cover edging in cool-season beds
• Pollinator-friendly — attracts butterflies and small insects