We're offering you a Garden Ready Lobelia Monsoon for £6.99, saving you up to 59% off Thompson and Morgan's's price of £16.98 (correct as of 05.06.2026).

summer beauty

Lobelia 'Monsoon' is a classic trailing annual renowned for its clouds of vivid blue flowers that spill gracefully over baskets, pots, and borders. Botanically known as Lobelia erinus, this variety is celebrated for its exceptional trailing habit and dense coverage of blooms.

Why Choose Lobelia 'Monsoon'?

• Continuous Summer Colour: Enjoy a non-stop display of sparkling blue flowers from early June right through to the first autumn frosts.
• Perfect for Containers: The cascading stems create striking hanging basket and patio pot displays. Use as an edging plant or combine with petunias, begonias, or alyssum for a vibrant summer scheme.
• Low Maintenance: Simply plant out after the last frost in moist but well-drained soil. Water regularly and feed with a balanced fertiliser every few weeks for best results.
• Great Value: Supplied as young, garden-ready plants for quick establishment and instant impact.

Growing Guide

• Sowing & Planting: Plant outdoors after the risk of frost has passed (typically late May in the UK). Space plants 15–20cm apart.
• Light & Position: Thrives in full sun to partial shade; best flowering occurs in bright locations.
• Soil Requirements: Prefers fertile, moist but well-drained soil. Suitable for most composts in containers.
• Caring For Your Lobelia: Deadhead faded blooms regularly to encourage more flowers. Water consistently during dry spells.
• Pests & Diseases: Generally trouble-free but watch for slugs on young plants.

Design Tips & Companion Planting

• Lobelia 'Monsoon''s trailing stems pair beautifully with upright bedding plants like geraniums or fuchsias.
• Create a bold contrast by mixing with white alyssum or silver-leaved foliage plants such as Dichondra 'Silver Falls'.
• This annual is perfect for softening pot edges or filling gaps in mixed summer borders.

FAQs

• When is the best time to plant Lobelia 'Monsoon'?
  The ideal time is after the last spring frost—usually from late May onwards in the UK.
• How tall and wide does it grow?
  Lobelia 'Monsoon' typically trails up to 30cm (12in) with a spread of around 25–30cm (10–12in).
• Does it need full sun?
  This lobelia thrives in full sun but will also flower well in partial shade. Ensure soil stays moist but not waterlogged.