Set of 3 or 6 Large Lobelia Plants - Hot WaterBlue Improved, Ready to Plant in Your Garden

A free-flowering trailing bedding plant that cascades with colour from late spring through autumn.

Trailing lobelia produces masses of tiny, fan-shaped flowers held closely together along flexible, cascading stems, creating a soft waterfall of colour for baskets and containers. Available in deep blue-violet, vivid purple-blue, refreshing water-blue, and pure white, each bloom features the classic lobelia form with three flared lower petals and two smaller upper petals, often highlighted by a pale throat. Though individually small, the flowers appear in such abundance that they form dense, flowing curtains of colour.

Supplied as large, well-established 10.5 cm rootballs, these plants are ready to plant straight outdoors and establish quickly. Grown in peat-free compost, they’re easy to maintain and perform reliably throughout the warmer months. Ideal for hanging baskets, window boxes, and raised containers, trailing lobelia offers high impact with minimal effort, making it suitable for both beginner and experienced gardeners.

Cultural Information

• Botanical Name: Lobelia erinus
• Common Names: Trailing Lobelia, Bedding Lobelia
• Plant Type: Half-Hardy Annual
• Supplied Size: 10.5 cm Rootballs
• Typical Height: 10–15 cm
• Typical Spread / Trail Length: Up to 30–40 cm
• Growth Habit: Trailing, Cascading
• Flower Colours: Blue, Violet, Lavender-Blue, White
• Flowering Period: Late Spring to Autumn
• Foliage: Fine-Textured, Bright Green
• Planting Position: Full Sun to Light Partial Shade
• Soil Type: Moist, Well-Drained Soil
• Watering: Water regularly, especially in warm weather
• Feeding: Feed every 1–2 weeks during the growing season
• Deadheading: Not required; trim mid-season to refresh growth if needed
• Maintenance Level: Low
• Ideal For: Hanging Baskets, Window Boxes, Containers & Raised Planters
• Hardiness: Half-Hardy (protect from frost)

Free UK Delivery on Every Order

All orders placed Monday–Thursday before 2pm are packed the next working day and delivered within 24 hours of dispatch.

Example: Order on Monday → packed Tuesday → delivered Wednesday.

Orders placed Friday–Sunday are packed and shipped on Monday. We don't dispatch on weekends to ensure your plants travel fresh.

How Your Plants Arrive
Every plant is individually wrapped in our plastic-free packaging and secured in a custom box designed to keep them upright and protected in transit. If anything arrives damaged, get in touch — we'll replace it.

Returns
Not happy? Contact us within 14 days of delivery and we'll sort it out. See our full returns policy here.