I have a trough 130c long 15c wide 15c deep; what plants are best for this size trough and how many?

Question

I live in the UK.

Answer 1

You need to ask yourself if this will be a shade or sunny planter?

Make sure you use a good quality potting mix and that the container has drainage holes.

Then visit your local garden center and choose flowers or foliage that you like. You can select a mix of annuals (bloom all summer) and perennials (come back each year but often bloom for only 2 or 3 weeks) or make it your spectacular annual planter.

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/types-of-potting-soil.htm
https://www.gardeningknowhow.com/ornamental/flowers/fgen/creating-a-garden-masterpiece-with-annuals.htm

You will know how many plants by the spacing needed between plants which is specified on the plant label.

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/types-of-potting-soil.htm

https://www.gardeningknowhow.com/ornamental/flowers/fgen/creating-a-garden-masterpiece-with-annuals.htm