Choose reliable perennials and annual flowers, for a colourful, year-round display.
What to do
- Measure your windowsill before buying a window box to make sure it will fit comfortably. Cover drainage holes in box with a layer of broken pot shards or broken up polystyrene packaging.
- Fill container with compost to the bottom of your largest pot.
- Arrange plants, while still in their pots, taking into account structure, foliage texture and colour, and when you're happy with the combination, knock them out of their pots and plant.
- Fill in gaps with compost and firm down.
- Finish by watering.
