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Organic Red Onion Seeds

Organic Red Onion Seeds

SKU: 364115376135191

Variety: Red Spark


Who do I suit?

Everyone! I can be grown indoors or on a balcony in a pot, or in a garden!


Packet size:

Approx. 30 seeds per packet


This seed packet size caters for the novice, new and small growers, and aims to reduce wastage. For larger growers, chat to us on hello@sow.ie and we will get you what you need! 


  • How to Grow Me

    Sowing seed

    • Can be sown outdoors somewhere they will get plenty of sunshine

    • Ensure there are no stones, weeds and weed roots in soil before sowing seed

    • Soil needs to have good drainage

    • The soil should be moist before sowing so water soil day before if dry

    • Sow seed 1cm deep with about 3cm between seeds. If sowing more than one row then space the rows 20cm apart.

    • Keep the soil weed free, ensuring you don’t damage plant in the process

    • Water plants in morning 

    • Remove any flower stems that may appear — this is the onion trying to bolt (note red onion more likely to bolt than other onions)

    • When stem turns yellow and falls over, gently loosen onion in soil and leave for another 2 weeks.



    • When plants are approx. 1 - 2 months in the soil (well established) recommended to transplant (moving to different location for optimum growing)

    • Soil to transplant into needs to be well drained, fertile soil (e.g. compost) in warm weather, in a sunny position 

    • Water if weather is dry but do not overwater 

    • Ensure soil around plant is kept weed free

    • To encourage growth and deter pests, feed every 3 - 4 weeks with organic fertiliser (e.g. dried seaweed fertiliser, sachets available on sow.ie)


    Growing Time: 

    • Approx. 5 months after sowing



    • Harvest approx 2 weeks from the point that stem turns yellow and falls over

    • Harvest on sunny day, lift from earth. Can be eaten directly after harvest but if drying to store, leave exposed to sun/wind for 3 -5 days until tops have dried. 


    Tip: Perfect indoor or balcony plant!


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