Sweet onion growing herbaceous of the genus Allium, Sweet onion is a perennial plant because the vegetative reproduction of the bulbs, the bulb is biennial and grown as annual plant, can grow in mediterranean, desert, subtropical, temperate climate and growing in hardiness zone 7-10
Leaves are narrow and hollow leaves grow in groups linked together.
Flowers small the color is white the flower grow on hollow stem as inflorescence in a umbel shape.
Sweet onion bulb
Bulb not spicy at all the taste is sweet the bulb is made from layers that grow in radial round shape the layers color of the bulb white to yellow
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Requirements for Sweet onion growing and care:
Mulch, rich soil, well drain soil, free of rocks, nitrogen
What is the best way to start growing?
Plant / Seed / Bulb
Is it necessary to use vegetative reproduction?
No, but possible
Difficulties or problems when growing:
Spring, summer, autumn depend on the cultivars
Pests and diseases:
Sweet onion fly, Sweet onion thrips
How to prune:
Stem of inflorescence
Size of the plant?
Bulb 1-10 cm (0.3-4 inches), leaves 10-50 cm (4-20 inches)
Growth speed in optimal condition:
Average amount of water
Light conditions in optimal condition for growing:
Full Sun / Half Shade
Is it possible to grow as houseplant?
Growing is also possible in a planter /flowerpot / containers:
General information about the flower:
White flowers grow in inflorescence on hollow stem
Thinning the bloom:
Recommend to thinning the stem unless you want the seeds
Pollination is done by:
Leaves harvesting season:
Most of the year
How to harvest the leaves?
Two possibility separate leaves or all the leaves of the plant (better all together with the bulb)
Information about leaves:
Leaves are narrow and hollow grow in radial growth, leaves grow in groups linked together
Uses of Sweet onion leaves:
Eaten raw, cooked, spice, herbs
Information about Sweet onion Bulb:
The bulb is made from layers that grow in radial round shape the layers color of the bulb white to yellow
When to pull up Sweet onion Bulb:
Summer / Autumn
Uses of Sweet onion bulb:
Eaten raw, cooked, spice, salad
Vegetative Reproduction Method:
Preferred time for vegetative reproduction:
Time to grow roots in vegetative reproduction:
If the bulb is fully grow, in the beginning of the season it grows the roots
Treatment for vegetative reproduction:
The same as fully grown plants, sometimes more water