✅ Pet-friendlyAnnual in cold climates, perennial in mild climates.10 to 20 cm
LightFull sun
WaterModerate; keep soil moist.
DifficultyEasy
ColdDoes not tolerate temperatures below 5 degrees Celsius.
Full sunModerate; keep soil moist.EasyDoes not tolerate temperatures below 5 degrees Celsius.
Description & origin
Lobelia is a popular annual plant for gardens and balconies. It produces small, vibrant flowers in shades of blue and violet. Ideal for borders and hanging baskets.
Size
Remains compact and low-growing.
Foliage
Dense green foliage, ideal for ground cover.
Flowering
Blooms profusely in spring and summer.
Detailed care
Light
Prefers full sun for abundant flowering.
Soil
Well-drained soil rich in organic matter.
Watering
Keep the soil slightly moist, avoiding waterlogging.
Temperature
Sensitive to cold, protect from temperatures below 5 degrees Celsius.
Fertilising
Fertilize monthly during the growing season.
Repotting
Transplant in spring after the last frost.
Pruning
Remove wilted flowers to encourage new blooms.
Propagation
Easily propagated by seed.
Common problems
Powdery mildew
Fungi causing white spots on leaves. Treat with fungicide.
Root rot
Caused by excess water. Improve soil drainage.
Aphids
Insects that suck sap. Control with appropriate insecticide.
Uses & curiosities
In the garden
- Colorful borders
- Hanging baskets
- Ground cover
Other uses
Ideal for balconies and small outdoor spaces.
Did you know…
Lobelia is often used in traditional medicine to treat respiratory issues.