Growing onions: tips and tricks for a successful harvest

By Hervé , on July 27, 2021 , updated on April 21, 2023 - 5 minutes to read
Onion (Allium cepa)

Why do onions bloom?

The most common cause of early flowering is a change in temperature. If the plant is cold, it may think that winter is coming. It will bloom as soon as the frost has passed.

What are bulbous flowers?

Crocus, hyacinth, narcissus, tulip, iris... there are many species to choose from, depending on the flowering period, size, growing method, etc. Bulb flowers are very easy to grow and can be used in the garden or on the balcony.

How do you stop onions from growing?

In the future, bulbs should be planted later after cold spells or covered with a winter cover to protect them from a possible cold snap. This same winter cover also protects them from leaf flies, which, like leeks, destroy the crop.

What is an onion flower?

Order at Asparagus
Subfamily Allioideae

Where do onions grow?

Find the right place to grow onions Prefer a rich, light and loose soil. Onions especially like peaty soil, not too clayey or sandy. For onions to grow properly, they must receive the nutrients they need.

Also see:   Growing and eating capers (Capparis spinosa)

When to plant onions in 2020?

Bulbs are very delicate to grow and like cool weather. They should therefore be planted in spring, between March and April, when it is neither cold nor hot.

What type of exposure for onions?

Ideal soil and exposure for growing onions in the garden. Loose, rich, well-drained soil is essential for onions, which thrive in a sunny, temperate climate.

How to treat onions?

Onion crops should be kept clean: hoeing between rows removes weeds and aerates the soil. It is not necessary to water or mulch. Watering should only be considered in very dry weather and only if harvesting is not expected within 3-4 weeks.

How do you grow onions?

If you want a large onion, bend the stems of the onion without breaking them when they reach the right height so that all the energy goes into the onion and not into the stems. Also remove some of the soil around the onion so that it can grow more.

When to cut the onions?

To keep the onions growing, cut off one or two leaves every 2 or 3 weeks. When washed and finely chopped, they are a great addition to omelettes.....

What are the diseases of onions?

Onion blight is caused by Peronospora destructor, an airborne fungus. This disease may not be as common as leaf blight, but when conditions are right for it to spread, blight can destroy onion crops in a short period of time.

Also see:   Thymus vulgaris, an aromatic plant with multiple virtues

When to harvest garlic and onions?

When to harvest? - In summer, from the beginning of July to the end of August: garlic, onions and shallots for preservation. Drying of the leaves is a sign of full maturity. The leaves of white and purple garlic and shallots can be eaten.

Onions can bloom when growing conditions are not optimal or when the vegetative cycle is disturbed. This can be due to unsuitable exposure, insufficient or too much watering, poorly drained soil, etc. Onion flowers usually appear at the end of the season and can compromise the quality of the bulb. It is therefore important to understand why this happens and how to remedy it in order to obtain a satisfactory harvest.

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