Overview

Lobelia speciosa 'Hadspen Purple' is a plant with a trailing, bushy habit in the genus Lobelia, part of the Campanulaceae family, with green foliage. Lobelia speciosa 'Hadspen Purple' grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H2. Suggested uses include borders, containers and hanging baskets. It is native to Ontario.

About

Lobelia speciosa 'Hadspen Purple' is a trailing, bushy cultivar of the Lobelia genus, which belongs to the Campanulaceae family. This cultivar features green foliage and thrives in full sun or partial shade, ideally in sheltered positions facing east, south, or west. It prefers moist but well-drained soils of various types, including loam, sand, chalk, and clay, and can tolerate a range of soil pH levels from acid to alkaline. Suitable for borders, containers, and hanging baskets, it is hardy to UK zone H2 and can be propagated by seed or bare root.

About the genus

Lobelia is a genus of flowering plants in the family Campanulaceae comprising 444 species, with a subcosmopolitan distribution primarily in tropical to warm temperate regions of the world, a few species extending into cooler temperate regions. They are known generally as lobelias.

Wikipedia contributors, "Lobelia", CC BY-SA 4.0Lobelia

Growing conditions

Best soil and position for Lobelia

Sunlight
Full sun, Partial shade
Soil type
Loam, Sand, Chalk, Clay
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained
Aspect
East-facing, South-facing, West-facing
Exposure
Sheltered
UK hardiness
H2

Plant details

Lobelia speciosa 'Hadspen Purple' size, habit and characteristics

Habit
Trailing, Bushy
Foliage
Green
Suggested uses
Borders, Containers, Hanging baskets
Native to
Ontario

Care notes

Pruning and caring for Lobelia speciosa 'Hadspen Purple'

Propagation
Seed, Bare root
Pest resistance
Generally pest-free
Disease resistance
Generally disease-free

Frequently asked questions

Where is the best place to plant Lobelia speciosa 'Hadspen Purple'?

Lobelia speciosa 'Hadspen Purple' prefers full sun and partial shade. It suits sheltered positions.

What soil does Lobelia speciosa 'Hadspen Purple' need?

Lobelia speciosa 'Hadspen Purple' is adaptable and grows happily in most soil types, including loam, sand, chalk and clay. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.

Is Lobelia speciosa 'Hadspen Purple' hardy in the UK?

Lobelia speciosa 'Hadspen Purple' has an RHS hardiness rating of H2, meaning it is tender, tolerating 1–5°C, and needs frost-free protection over winter.

How do I propagate Lobelia speciosa 'Hadspen Purple'?

Seed, Bare root.

More in the Lobelia genus

Browse all Lobelia