• Masses of deep blue flowers for months in summer
• Perfect for pots and containers
• Long flowering period
• Beautiful summer colour

Lobelia Waterfall 'Blue Improved' flowers for months in summer and autumn, with masses of deep blue flowers on trailing stems. Easy to grow and very low-maintenance, this cottage garden favourite looks lovely trailing from pots and hanging baskets, or growing in pockets in stone walls. The deep blue colour makes a fantastic contrast to bright orange and yellows, and tones beautifully with pinks and purples.

How you will receive your plants:

Selected by our team of experts and sent from our nursery, you will receive your super plugs in plug trays in a box. These are designed to keep your plants secure and to prevent damage in transit. Super plugs need to be potted on before planting out.

Can’t plant straight away?

If you aren't able to plant your seedlings out straight away then ensure they stay moist. You can place your plugs on a saucer or tray of shallow water so they are able to stay hydrated. Aim to have your plugs potted on within 3 days.

Potting seedling plugs on: On arrival place your plug trays in shallow water to allow them to soak ensuring the rootballs are moist. Use the end of a pencil or a narrow dibber to gently tease your plugs out of their trays. Choose potting on pots approximately 3 inches in diameter to plant your plugs on. Fill the pots with quality potting on compost and tap down until level. Use your pencil to make a hole in the top of the compost and place your plug plant in, gently pushing around the base of the plant. Repeat this process for all of your plugs and then place them in a tray and thoroughly water with a watering can using a fine rose to prevent the compost from being displaced. Grow your plants in a cold-frame, large sunny windowsill,  or greenhouse. Water every 2-3 days and more frequently if sunny to prevent drying out.

Hardening off: Once your potted on plants reach a good size and are ready to plant out in their final location, the first step is to harden them off before moving them outdoors permanently. This involves simply placing them outdoors during the day and back undercover at night to allow them to get accustomed to the lower temperatures. Once they have been hardened off for a week your plants should be ready to plant out in their final location.

Feeding and aftercare: Feed regularly with a high potash feed during the flowering period.