Lobelia erinus Hot Waterblue Improved ('Weslowat') (Hot Series)
lobelia [Hot Waterblue Improved]
A compact, deciduous annual with trailing stems of green foliage and masses of delicate blue flowers which appear throughout the summer. Perfect for hanging baskets and containers
Size
Ultimate height
0.1–0.5 metresTime to ultimate height
1 yearUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
Stem | Flower | Foliage | Fruit | |
Spring | Green | |||
---|---|---|---|---|
Summer | Blue | Green | ||
Autumn | Blue | Green | ||
Winter |
Position
- Full sun
- Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H2Botanical details
- Family
- Campanulaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Bushy, Trailing
- Genus
Lobelia can be annuals, perennials or shrubs, with simple leaves and showy 2-lipped flowers that may be solitary or in racemes or panicles
- Name status
Trade
How to grow
Cultivation
Grow in deep, fertile, reliably moist soil in full sun or partial shade. Apply a balanced fertilizer every two weeks during spring and early summer and a nitrogen-free fertilizer every two weeks from mid-summer onwards
Propagation
Propagate by cuttings
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- hanging basket
- Patio and container plants
- Bedding
- Flower borders and beds
Pruning
Remove after flowering ceases in autumn
Pests
May be susceptible to slugs
Diseases
Generally disease-free
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.