Flowering hardy biennial yellow orange wallflowers (Cheiranthus cheiri 'Sunset') flowers blooms

Flower seeds to sow in July

Take a look at six flower seeds you can sow in July, including plants for the greenhouse and hardy plants.

With the sun on your side, there are plenty of seeds you can sow in July. 

Before you get sowing, take a look at our important seed sowing tips. Don't forget to sow veg seeds, too. To discover veg to sow this month, check out our feature on vegetable seeds to sow in July.

Find out which flower seeds to sow in July, below.



July is the last month to sow these cottage garden stalwarts, for flowers in their second year. Delphiniums are outstanding plants for bees, too.


Fancy sowing something a bit different? Strelitzias are vibrant perennial greenhouse or houseplants, and can be sown throughout the summer months. The spectacular blooms make beautiful cut flowers, too. 


Forget-me-nots can be sown from May to September, mimicking the natural process of seed dispersal and germination that follows their spring-flowering. A beautiful self-seeder for dappled shade.


By sowing pansies now, you'll give them plenty of time to develop before the planting where they are to flower, in autumn. Sow early in the month for spring blooms. Here are eight pretty pansies and violas you could grow.


If you're looking for long season of colour, wallflowers (Erysimum) are a must. Keep deadheading the blooms and they'll keep on coming. Wonderfully scented. 


Foxgloves are just one of the many biennials that can be sown in July. Other biennials to sow in July include honesty (Lunaria annua), sweet rocket (Hesperis matrionalis) and stocks (Matthiola incana). Take a look at our step by step project on sowing foxgloves
If you're looking for long season of colour, wallflowers (Erysimum) are a must.


Discover more ideas and inspiration

Related content

How to sow hardy annuals

Alan's plants for August colour

Flower show planting ideas – July

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