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The best seeds to sow in October

From flowers to vegetables, October is a great time to make early sowings and plantings. Here’s a list of our favourite seeds to sow this month for a head start on the year ahead – plus top tips on how and where to plant them.



Versatile cauliflower

Cauliflower has a reputation for being sensitive to temperature and a bit tricky to grow, so prepare your soil well. We recommend early-summer cropping cultivars like ‘Snowball’ for sowing under glass now. 


  • Sow in multi-celled trays 2cm deep in moist, peat-free seed or multi-purpose compost.

  • Thin out to one seedling per cell.

  • Keep undercover in a greenhouse or cold frame.

  • Plant out in spring, around 75cm (2.5 ft) apart.


Easy onions

Onions are hugely versatile. From French onion soup to onion tart, onions can take centre stage, be a great side dish or flavour-filled condiment. Plus, they’re easy to grow. We recommend autumn-planting onion varieties including ‘Radar’.


  • Plant the sets (small onions) into fertile soil, 10-15cm apart, in full sun.

  • Plant just below the soil surface, with only the tips showing.

  • Allow 30cm between rows.

  • You shouldn’t need to water in winter, but check your moisture levels in spring – onions need plenty of it.


Phacelia – loved by bees

This hardy annual’s lavender-blue flowers are a hit with bees and other pollinators. We suggest you scatter your seeds into gaps in your borders if your phacelia are there purely to attract bees and insects.   

      

  • Sow phacelia seeds 10cm apart.

  • Thin them to 30cm a few weeks later.

  • For cut flowers, plant into a well-prepared seed bed. 


Lacy Orlaya grandiflora

Another plant that insects love, orlaya grandiflora is better known as white laceflower. It’s a great choice for wildlife gardens, with clusters of delicate, pure white flowers and a long flowering period. Grow it in a sunny, open position in well-drained soil.


  • Sow your orlaya grandiflora seeds in a seed tray, at least 6 inches deep to leave adequate space for the roots

  • Bring your containers indoors or into a greenhouse during the winter months.

  • Plant the seedlings outside in the spring.


Wonderful wallflowers for beds or pots

It’s the ideal time for planting out spring-bedding plants, ready for a splash of colour in March. Wallflowers are easy to grow, have an amazing scent and a long flowering period, from spring to early summer. 


  • Grow your bedding wallflowers in moist, but well-drained soil.

  • Help retain moisture – mulch with a 2-inch layer of compost

  • Choose either full sun or a partially shady spot.

  • Wallflowers also work well with daffodil or tulip bulbs in pots – space them about 6 inches apart.

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