Trailing lobelia ‘Cambridge Blue’ (Lobelia erinus ‘Cambridge Blue’)

Trailing lobelia ‘Cambridge Blue’ (Lobelia erinus ‘Cambridge Blue’) is a plant in the annuals and biennials category that can grow 10cm – 50cm tall and 10cm – 50cm wide. In this growing guide we’ll learn the cultivation details and how to plant Trailing lobelia ‘Cambridge Blue’ (Lobelia erinus ‘Cambridge Blue’).

This plant is commonly known as trailing lobelia ‘Cambridge Blue’.

This is a deciduous plant that takes 1-2 years to reach full maturity.

Plant profile

Common name: trailing lobelia ‘Cambridge Blue’
Scientific name: Lobelia erinus ‘Cambridge Blue’
Plant type: Annual / Biennial, Bedding
Habit: Mat forming
Height: 10cm – 50cm
Spread: 10cm – 50cm
Foliage: Deciduous
Sunlight: Full Sun, Partial shade
Soil: Chalk, Clay, Loam, Sand
Moisture: Moist but well drained
Garden type: City & Courtyard Gardens, Informal Garden, Patio & Container Garden
Planting type: Flower borders and bedding, Hedging & Screens
Other characteristics: RHS Award of Garden Merit

Seasonal colors

Annuals and biennials are ideal for formal or informal flower beds, but also for growing in pots and containers of all kinds. They are important plants for their rapid growth, instant color and relatively low cost.

They are also useful plants for filling spaces between newly planted trees and shrubs, as well as in perennial beds that may need to be revived after the first spring bloom.

They are an important ingredient in country house gardens and wildflower meadows.

How to plant

In this section we will learn how to plant Trailing lobelia ‘Cambridge Blue’ (Lobelia erinus ‘Cambridge Blue’), know its needs in terms of soil, watering and sun exposure.

Soil

Trailing lobelia ‘Cambridge Blue’ (Lobelia erinus ‘Cambridge Blue’) is a plant that adapts to all types of soils, chalk, clay, loam or sand.

• The chalky soil is pale and contains chunks of calcium-rich rock. It is a fertile and well-draining soil, almost always alkaline.

• Clay soil is composed of more than 25 percent clay particles. These particles have a high moisture holding capacity and the soil is heavy to dig and can be waterlogged in winter (dry in summer).

• The loam soil is dark, rich in organic matter but balanced in minerals. It offers the best of all worlds, retaining enough water for the plants, but allowing excess moisture to drain away. This is the most desired type of garden soil, perfect for most plants.

• Sandy soil is light, porous and very easy to drain. It is a soil poor in organic matter and nutrients. It is composed of relatively large mineral particles that allow water to drain quickly.

It is not very sensitive to soil acidity or alkalinity and grows well in soils with pH acid, alkaline or neutral.

Regarding drainage, Lobelia erinus ‘Cambridge Blue’ likes to grow in moist but well drained soil.

Sunlight

Trailing lobelia ‘Cambridge Blue’ (Lobelia erinus ‘Cambridge Blue’) is a plant that should be grown in full sun or partial shade positions.