lobelia
siphilitica
siphilitica
Care level
Medium
This striking wildflower produces tall spikes of intense blue flowers that create a dazzling display from late summer through fall. Unlike its more delicate cousins, it's a robust plant that thrives in wet conditions and can reach impressive heights of up to 3 feet, attracting countless butterflies and hummingbirds to its tubular blooms.
Care & maintenance
Light
Bright light, usually located near windows but doesn't receive direct rays for more than an hour during the day.
Temperature
Wide range (-30°C - 30°C)
Fertilization frequency
Low
Once per season.
Soil
Choose a General purpose mix: A versatile blend with excellent water retention and aeration. Provides balanced nutrition and suitable drainage for a wide variety of houseplants.
If you want to create your own substrate, you can make a mixture of the following soils:
Click on the soil name for more information.
Pot
Standard size
Prefer a pot with a classic width/depth ratio.
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Features
Size & growth
Medium
Upright
Moderate growth
This plant grows at a moderate rate. It can reach 30 to 90 cm in height or spread.
It grows upwards without support.
Toxicity
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Reproduction & propagation
Fruits & flowers
Flowering & self-pollinating
The lobelia siphilitica can produce flowers and therefore fruits.
This plant is capable of self-pollination, it does not need another individual to fertilize itself and therefore produce fruits.