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Euphorbia, coleus and bidens window box

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
At its best
At its best

Plant is not at its best in January

Plant is not at its best in February

Plant is not at its best in March

Plant is not at its best in April

Plant is not at its best in May

Plant is at its best in June

Plant is at its best in July

Plant is at its best in August

Plant is at its best in September

Plant is at its best in October

Plant is not at its best in November

Plant is not at its best in December

To do
To do

Do not To do in January

Do not To do in February

Do not To do in March

Do not To do in April

Do To do in May

Do To do in June

Do not To do in July

Do not To do in August

Do not To do in September

Do not To do in October

Do not To do in November

Do not To do in December

In this cool bouquet for a gloomy spot, we combine lime-leaved coleus and silver-edged tulbaghia with euphorbia and golden bidens, both of which will keep on blooming whatever the weather. It’s ideal for a shady window-ledge, steps or a low wall, as it needs only a few hours of sun a day to maintain its lush and flowery look.

For added drama, try substituting the variegated tulbaghia with black lilyturf, Ophiopogon nigrescens.

You will need

  • Euphorbia ‘Diamond Frost’
  • Golden coleus x3
  • Bidens ferulifolia x2
  • Tulbaghia violacea ‘Silver Lace’ x2
  • Large window box
  • Multi-purpose compost
  • Crocks
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Total time:

Step 1

Position the window box where you want it, place a layer of crocks at the bottom, then three-quarters fill with compost. Arrange the plants, firm well and top up with compost, then water well.

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Kevin Smith says…

Combine golden foliage with a black container to create a modern look with a contemporary feel. The dark container will highlight the zingyness of the plants, giving them plenty of standout when displayed in a shady spot.

Kevin Smith