Lobelia cardinalis siphilitica
GREAT BLUE LOBELIA
- Unit price
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Perennial blue lobelia has absolutely-stunning blue blooms held on tall spikes! Blooms are true-blue, and not a of violet. Plants are very cold hardy, especially compared to red lobelia varieties, and will return year after year reliably. Tolerant of many soil types including poor dry soils. Blooms appear in late summer and into fall, when few other plants are in bloom. Hummingbirds love them! We have had a very large clump of these for many years and we consider them one of our most valuable perennials!
Type: Hardy perennial
Height: 36-48"
Location: Part sun or shade
Hardiness zones: 4-9
Seeds per pack: 30
Surface sow as light aids germination. Water the seeds in. Temperature 20-22C (68-72F) for 4 weeks. If they have not germinated after 4 weeks then a cooling period is required. Cover them with plastic and place in a fridge for 4 weeks. Be sure they stay moist. After the cold stratification period they are then brought back to a cool room (15C, 59F) for them to germinate. Germination can be 30-60 days after the warming period, though some will take longer.
Ornamental use only. These seeds and or plants are poisonous.
Lobelia cardinalis siphilitica
GREAT BLUE LOBELIA
- Unit price
- / per
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Perennial blue lobelia has absolutely-stunning blue blooms held on tall spikes! Blooms are true-blue, and not a of violet. Plants are very cold hardy, especially compared to red lobelia varieties, and will return year after year reliably. Tolerant of many soil types including poor dry soils. Blooms appear in late summer and into fall, when few other plants are in bloom. Hummingbirds love them! We have had a very large clump of these for many years and we consider them one of our most valuable perennials!
Type: Hardy perennial
Height: 36-48"
Location: Part sun or shade
Hardiness zones: 4-9
Seeds per pack: 30
Surface sow as light aids germination. Water the seeds in. Temperature 20-22C (68-72F) for 4 weeks. If they have not germinated after 4 weeks then a cooling period is required. Cover them with plastic and place in a fridge for 4 weeks. Be sure they stay moist. After the cold stratification period they are then brought back to a cool room (15C, 59F) for them to germinate. Germination can be 30-60 days after the warming period, though some will take longer.
Ornamental use only. These seeds and or plants are poisonous.