Oxalis, begonia and lobelia window box

Place the container on a window ledge in part shade or use to grace a cool flight of steps. Remove the yellow lysimachia flowers when they appear – if you dislike the colour clash – and water well when it’s warm.

You Will Need

• Oxalis triangularis (2)
• Begonia sutherlandii (3)
• Lysimachia ‘Midnight Sun’ (3)
• Purple lobelia (3)
• Crocks
• Multi-purpose, peat-free compost
• Window box

Step 1

Drill drainage holes in the container, if necessary, and add a layer of crocks to cover them.

Step 2

Fill the container two-thirds with compost.

Step 3

Arrange the plants in the container, leaving plenty of space for growth. Firm them in well and add more compost to fill any gaps.

Step 4

Water the container thoroughly and allow to drain, before moving to its final position.

Kevin Smith says...

Mix slow-release fertiliser granules into the compost when planting – this will gradually release nutrients throughout the growing season meaning the display will always look lush and healthy.