Spring onions are a versatile vegetable and a reliable source of vitamins A, B and C. Photo / Unsplash / riki lifestyle
Kem Ormond is a features writer for NZME community newspapers and The Country. She’s also a keen gardener. This week, she’s singing the praises of the spring onion.
OPINION
Spring onions are one of the most versatile vegetables to have in the garden.
They take up very little space and can even be grown in your flower bed if space is short.
They are quick-growing onion cultivars that are harvested when small.
Spring onions love a sunny position in well-drained but moist soil.
It pays to feed your soil with a slow-release fertiliser or prepare it with homemade compost or sheep pellets.
I like to use some old six-pack seed containers adding half a dozen seeds into each cell.
This makes it easier to divide them when it is time to plant them and avoids having to thin them – my least favourite job.
If you decide to plant directly into your vegetable beds, create furrows around 6mm deep and sprinkle the seeds in.
Next, cover the seeds lightly with another layer of compost and gently press down.
After 10-14 days, you will need to thin out the seedlings by gently pulling some out of the ground where they are growing too closely together and replanting in other parts of your garden.
Space with 5cm between each plant and 15cm between each row.
This has to be done so you have more room for your spring onions to grow. Plus, this allows more airflow between plants, reducing the likelihood of diseases being spread.
It also pays to change your planting beds each year as this will help deter pests and diseases.
You need to plant new crops at 3-4-week intervals if you want year-round plants.
Some areas can grow spring onions all year round.
I am on the west coast of the North Island and grow them eight months of the year, although I could grow them in pots in a sunny warm, sheltered position and have them 12 months of the year.
Spring onions are ready to harvest in eight weeks.
I always pull up the whole plant when they are ready to use, but I have friends who snip off the base and leave the roots in the ground to regrow.
Pests and diseases
Aphids, Thrips and Downy Mildew are all pests and diseases to watch out for.