What Flowers Can You Plant Now? Flower Planting Calendar UK

Flowers are an incredible way of spicing up your garden, making it the envy of others. As an avid gardener, you might be wondering when to plant flower seeds in the UK so that your garden remains beautiful throughout the year. In fact, some of the best planned gardens are those which offer variety all year round - irrespective of whether this comes in the shape and form of flowers, foliage or even berries. In this post, we’ll offer you a comprehensive flower planting calendar for the UK, which will show you when to plant flower seeds and what flowers you can plant now.

January

When it comes to the question of what flower seeds you can sow now, this when to plant flowers calendar is ideal for you. Starting with January, it can be acknowledged that this is usually a fairly quiet month in the garden so it is time to start raising plants from seed.

Some of the options you might consider include:

  • Begonias
  • Geraniums
  • Lobelia
  • Sweet peas
  • Hollyhocks

February

Wondering when to plant flowers in February? February usually gets busier than January and it’s time for gardeners to make early sowings of many summer bedding plants.

These include:

  • Geranium
  • Petunia
  • Impatiens (busy lizzie)
  • nicotiana
  • Perennials

March

March is usually considered the peak for sowing flower seeds as most summer bedding varieties can be sown.

Here are some of them:

  • Cosmea
  • Gazania
  • Petunia
  • Lobelia
  • Sweet pea
  • Calendula
  • Clarkia
  • Larkspur
  • Nigella
  • Marigold

April

To the question “when to plant flower seeds”, especially in April, it’s definitely time to sow some half-hardy flowers. Do this under cover for some, while others can be sown indoors or outdoors.

  • Nemesia
  • Rudbeckia
  • Cosmos
  • French marigold
  • Oxalis
  • Clarkia

May

With the soil warming up, it’s the perfect time for sowing seeds. You can sow some of them by simply pushing them into damp compost or directly into the ground.

Here are a few examples:

  • Primrose
  • Cornflowers
  • Calendula
  • Sweet William
  • Nasturtium

June

June flowers to sow outdoors include:

  • Alstroemeria
  • Achillea
  • Arabis
  • canterbury bells
  • Coreopsis
  • Erigeron
  • Myosotis
  • Sweet William

Meanwhile, June flowers to sow in the greenhouse are:

  • Polyanthus
  • Primrose
  • Pansy

July

There is a wide variety of flowers you can sow in July, while making sure you’re prepared for planting in the autumn. Here are some examples:

  • Aquilegia
  • Campanula
  • Coreopsis
  • Delphinium
  • Myosotis
  • Penstemon
  • Pansy
  • Foxglove
  • Sweet William
  • Forget-me-nots

August

For colourful pot plants indoors and to ensure you use the right flower seeds to sow in August, sow the following:

  • Cactus
  • Cyclamen
  • Coleus

For the outdoors, sow:

  • Feverfew
  • Field cornflower
  • Calendula
  • Myosotis
  • Siberian wallflower
  • Cyclamen hederifolium
  • Potentilla

September

There are two ways to plant seeds this month. For the outdoors, flower seeds to sow in September include:

  • Calendula
  • Larkspur
  • Nigella
  • Poppy seeds
  • Wildflowers

In the greenhouse, sow:

  • Cyclamen
  • Pelargonium
  • Schizanthus seeds

Sow sweet pea seeds in a cold frame.

October

Despite the shorter nights and the increasingly cooler weather, you can still sow this month. Some flower seeds to sow in October include:

  • Coleus
  • Aquilegia
  • Nemesia
  • Oxalis

You can also sow sweet peas in a cold frame or unheated greenhouse during October and sow cyclamen in a heated greenhouse.

November

November is the month of variety. You can make early sowings of:

  • Geraniums
  • Plus nemesia
  • Coleus

You can also sow cactus and other houseplant seed varieties.

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December

Contrary to popular belief, you can still sow flowers in December. Some of the flower seeds to sow in winter this month are:

  • Begonia
  • Coleus
  • Cyclamen
  • Geranium

All this will depend on what types of temperatures you can maintain.

Also feel free to sow cactus and other houseplant seeds during December.

In this post, we’ve offered you a wide variety of flower options to plant throughout the year in the UK. With these tips, we hope you see your garden blooming all year round. It doesn’t matter which month it is, you can always sow different types of plants and see your garden blossoming, enriched with colour and various nuances.