Sapphire Blue Lobelia erinus Seeds-Flowering Seeds - Flower, 30 seeds

Quantity: 30 Seeds / pack

Sapphire Blue is a compact edging lobelia (Lobelia erinus) smothered in vivid sapphire-blue flowers over neat, low mounds of foliage. A long-blooming favorite for bed edges, rockeries, containers, and window boxes.

Why choose our seeds?

• Vivid sapphire-blue flowers over compact, low foliage
• Long blooming season from late spring to fall
• Ideal for edging, containers, and window boxes

How to grow Sapphire Blue Lobelia erinus seeds

Choose Your Planting Method

• Indoors: Sow indoors 10–12 weeks before the last expected frost — lobelia is slow to reach flowering size.
• Outdoors: Transplant outdoors after all danger of frost has passed; direct outdoor sowing is unreliable.

Prepare Your Materials

• Seed-starting trays or pots
• Fine seed-starting mix
• Humidity dome or plastic bag
• Spray bottle for misting

Sowing the Seeds

• Sow on the surface of moist mix and press in gently — do NOT cover; lobelia seeds need light to germinate.
• Keep the surface evenly moist but not waterlogged.

Provide the Right Conditions

• Light: Bright light; do not exclude light during germination.
• Temperature: 65–75°F (18–24°C).
• Humidity: Cover with a dome or plastic bag to hold moisture until sprouting.

Germination

• Seedlings typically emerge in 14–21 days.
• Grow seedlings on in cooler, bright conditions once sprouted.

Transplanting

• Transplant when seedlings are large enough to handle and all frost danger has passed.
• Harden off for 7–10 days before planting out.
• Space plants about 4 inches apart.

Care Tips

• Sun: Full sun to part shade; afternoon shade helps in hot climates.
• Water: Keep soil consistently moist; do not let containers dry out.
• Fertilizer: Feed every 2 weeks with a balanced liquid fertilizer through summer.
• Shear plants back by about half in mid-summer to encourage a fresh flush of bloom.

Bloom Time:

Late spring to fall (until hard frost).