Lobelia 'Isobel's Blush' — Clump forming, Trailing, Matforming, Bushy

Overview

Lobelia 'Isobel's Blush' is a clump forming, trailing, matforming, bushy herbaceous perennial in the genus Lobelia, part of the Campanulaceae family, with deciduous foliage. Lobelia 'Isobel's Blush' grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H5. Suggested uses include cottage and informal garden, flower borders and beds, city and courtyard gardens, coastal, patio and container plants and garden edging.

About

Lobelia 'Isobel's Blush' is a herbaceous perennial cultivar within the Lobelia genus, which includes annuals, perennials, and shrubs known for their simple leaves and distinctive two-lipped flowers. This cultivar forms clumps and has a trailing, matforming, and bushy habit with deciduous foliage. It thrives in full sun or partial shade and adapts well to a variety of soil types and pH levels, preferring moist but well-drained conditions. Hardy to UK zone H5, it is suitable for diverse garden settings including cottage gardens, borders, city courtyards, and coastal areas, offering seasonal interest in spring and summer.

Growing conditions

Best soil and position for Lobelia

Sunlight: Full sun, Partial shade
Soil type: Chalk, Clay, Loam, Sand
Soil pH: Acid, Alkaline, Neutral
Soil moisture: Moist but well-drained, Well-drained
Aspect: South-facing, East-facing, West-facing
Exposure: Exposed, Sheltered
UK hardiness: H5

Plant details

Lobelia 'Isobel's Blush' size, habit and characteristics

Plant type: Herbaceous Perennial
Habit: Clump forming, Trailing, Matforming, Bushy
Foliage: Deciduous
Suggested uses: Cottage and informal garden, Flower borders and beds, City and courtyard gardens, Coastal, Patio and container plants, Garden edging

Care notes

Pruning and caring for Lobelia 'Isobel's Blush'

Propagation: Seed sown at 13-18ºC in late winter, Division in spring
Pest resistance: Susceptible to slugs
Disease resistance: Generally disease-free

Frequently asked questions

Where is the best place to plant Lobelia 'Isobel's Blush'?

Lobelia 'Isobel's Blush' prefers full sun and partial shade. It suits exposed and sheltered positions.

What soil does Lobelia 'Isobel's Blush' need?

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

Is Lobelia 'Isobel's Blush' hardy in the UK?

Lobelia 'Isobel's Blush' has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.

How do I propagate Lobelia 'Isobel's Blush'?

Seed sown at 13-18ºC in late winter, Division in spring.

More in the Lobelia genus

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