77 – 84 days. Cambridge Blue lobelia is brilliant, easy to grow from seed, and perfectly suited for many humid and temperate climates. Cambridge Blue seeds will excite your home, patio, and garden with fast-growing 4 – 6” tall lobelia with ½” tubular powder blue blooms. Cambridge Blue lobelia seeds are vigorous garden performers and ideal for kids or novice gardeners to try as vibrant accent to flower beds, fences, and walkways. 1000 multi-seed pellets.
These seeds cannot ship to Japan.
Growing Cambridge Blue Lobelia Garden Seeds
- Taxonomy: Lobelia erinus
- Other Names: Garden Lobelia, Trailing Lobelia, Edging Lobelia
- Seed Type: Annual (Perennial to zones 10 – 11)
- Sow Indoors or Outdoors: Cambridge Blue lobelia seeds are most popularly started indoors 8 – 10 weeks prior to the final frost. Seeds take 14 – 21 days to germinate in full lighting. Lobelia grows very similarly to pansies and linaria and are potted just as popularly indoors as they are outdoors.
- Days to Maturity: 77 – 84 days
- Hardiness Zone: 3 – 11
- Planting Depth: Plant 2 – 3 seeds ¼” deep
- Plant Spacing: 6”
- Growth Habit: 4 – 6” tall trailing shrub with a dense 6 – 8” spread of ½” tubular blooms
- Soil Preference: Organically rich, evenly moist, well-drained
- Light Preference: Full sun – Partial shade
- Diseases/Pests/Troubleshooting: Cambridge Blue performs well in cool springs and shaded summers. Keep the soil evenly moist and do not let soil dehydrate as it will decrease blooming. Plants will experience heavy die back if not shaded in extreme summers. Lobelia has no susceptibility to any pests or diseases.
- Color: Soft powder blue blooms and bright greens
Cambridge Blue lobelia seeds are most popularly started indoors 8 – 10 weeks prior to the final frost. Seeds take 14 – 21 days to germinate in full lighting. Lobelia grows very similarly to pansies and linaria and are potted just as popularly indoors as they are outdoors. Plant 2 – 3 Cambridge Blue lobelia seeds ¼” deep and 6" apart in organically rich, consistently moist, and well-drained soil in full sun to partial shade. Cambridge Blue performs well in cool springs and shaded summers. Keep the soil evenly moist and do not let soil dehydrate as it will decrease blooming. Plants will experience heavy die back if not shaded in extreme summers. Lobelia has no susceptibility to any pests or diseases. Cambridge Blue lobelia seeds mature in 77 – 84 days as 4 – 6” tall trailing shrubs with a dense 6 – 8” spread of ½” tubular blooms.
Lobelia erinus, or more commonly known as Lobelia, is a relative to the bellflower and native to most of southern Africa from Malawi to South Africa. The genus name Lobelia pays homage to 16th century French physician and botanist Matthias de l'Obel.