Lobelia 'Hot Water Blue Improved' – Trailing Bedding Lobelia (Set of 3 or 6)

Lobelia 'Hot Water Blue Improved' is a trailing bedding lobelia, smothered in tiny blue flowers from late spring through to autumn.

The flowers are small and fan shaped, each with three flared lower petals and two smaller upper ones, carried so thickly along the flexible stems that they half hide the fine green foliage. Plants reach about 10 to 15cm high and trail 30 to 40cm, enough to soften the rim of a basket or a window box without swamping whatever is planted beside them.

Plants arrive as established 10.5cm rootballs grown in peat free compost, so they are a good deal stronger than plugs and settle quickly. This is bedding lobelia rather than the tall border kind, so plant it out once the frosts have passed and keep the compost moist. It resents drying out far more than it resents cold. All lobelia is harmful if eaten and toxic to cats and dogs.

Cultural Information

• Common Name: Trailing lobelia, bedding lobelia
• Fully Grown Height and Spread: 10 to 15cm tall, trailing 30 to 40cm
• Growth Habit: Trailing and cascading
• Perfect For: Hanging baskets, window boxes, patio containers and raised planters
• Foliage: Fine and bright green
• Flowering Time: Late spring to autumn
• Planting Position: Full sun or partial shade, and it grows well in patio pots and containers
• Soil Type: Moist but well drained
• Hardiness: Not hardy. Half hardy bedding, so plant out once the frosts have passed.
• Maintenance: Low. Trim lightly mid season to freshen the growth.
• Seasonal Interest: Spring, summer and autumn
• Type: Bedding and basket plant

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.