Life Cycle
Perennial (often grown as annual)
Plant Characteristics
compact foliage
Growth Habit
Low-growing
Bloom Season
Spring to summer
Flavour Profile
Not applicable
Suitable for
Outdoor
Planting Season
Winter to early spring
Fruit Size
Not applicable
Plant Height
10–15 cm
Light Requirement
Full sun
Water Needs
Moderate to high
Hardiness Zones
3–9
Container Garden
Yes
Plant Spacing
20–30 cm
Planting Depth
2–3 cm
Growing Conditions
Cool climate
Frequently Asked Questions
Is Cambridge Blue suitable for edging curved pathways?
Is Cambridge Blue suitable for edging curved pathways?
Yes. Its compact habit makes it useful for defining curved borders and garden edges.
Can Lobelia soften the edges of containers?
Can Lobelia soften the edges of containers?
Yes. Dense growth creates an attractive finish around pots, planters, and window boxes.
Does Cambridge Blue combine well with white flowers?
Does Cambridge Blue combine well with white flowers?
Yes. Its soft blue blooms complement white flowering plants in mixed displays.
Can this Lobelia fill gaps between larger plants?
Can this Lobelia fill gaps between larger plants?
Yes. Its compact growth helps cover open spaces without becoming overly tall.
Is Lobelia suitable for hanging baskets?
Is Lobelia suitable for hanging baskets?
Yes. It performs well in baskets where the foliage and flowers can gently spill over the edges.
Does regular trimming improve its appearance?
Does regular trimming improve its appearance?
Light trimming after the first flush of flowers can encourage a tidier shape and additional blooming.