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Myrtle and campanula window box

in : Pots & containers: Window boxes

You will need

  • Myrtle, Myrtus communis subsp. tarentina
  • Campanula portenschlagiana x2
  • Small window box
  • Crocks
  • Loam-based compost, such as John Innes No. 3

Pots & container categories

Overview

Box always looks smart in a container but it's not the only shrub that can be clipped into shape. Myrtle is an excellent evergreen alternative. Faintly aromatic and with lovely white flowers in spring, it looks stunning from June to August, softened by a sea of blue campanula flowers.
Plant it: March - July
At its best: June - August
Takes just: 20 minutes

How to do it:

1Cover the bottom of the window box with crocks, then two-thirds fill it with compost.

2Plant the myrtle in the centre of the box surrounded by the campanulas. Top up the box with compost, gently firming it around the plant roots with your fingers.

3This container will overwinter outside if there's a protective wall close by; otherwise, insulate the box with bubble polythene to protect the roots from frost.

Adam's tip

Cut the myrtle back in spring and give it a tidy-up after flowering. Keep a check on the campanulas as they will spread vigorously. Cut them back as needed.

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