Red onion plant are one of the most vulgar Allium cepa miscellany used in culinary dishes aside from yellow onion . It ’s a prized choice because of its mild , sweet flavor and gorgeous color , but too many gardeners shy by from study how to grow and harvest red onion .
Red onions are n’t hard to raise . disregarding of the character of Allium cepa that you raise , all Allium cepa are biennials , which intend it takes two years to fill in their life hertz . In the first year , the seed grows and forms flyspeck electric light . Then , in the 2nd class , the bulbs maturate .
violent onions are just as easy as yellow and white onions to grow . They do n’t require any extra discourse or guardianship , so if you ’ve grown one eccentric of onion , you could grow them all . permit ’s learn how to grow and harvest red onion plant in your garden this twelvemonth .

Red Onion Varieties to Grow
Before you learn how to produce and glean red onions , you want to pick the varieties you would like to produce . verify to search at the days to maturity and equate it to how many days you have in your growing season .
Here are some democratic red Allium cepa variety show .
Italian Torpedo
This is a unique kind that has pinkish - red skin and an elongated shape . Italian Torpedo onions are a prospicient - day cultivar that has a sweet , soft spirit . These onion take around 110 day to attain adulthood .
Red Burgundy
Here is a short - day globe onion plant that produces three to four - column inch lightbulb with red rings and dark cerise skins . Red Burgundy is an heirloom onion with a modest and angelical flavor , and if you struggle with pinkish root disease , these onions are resistant .
Southport Red Globe
If you desire a storage reddish onion plant , essay the Southport Red Globe . It ’s an heirloom , recollective - day onion plant that produces bombastic bulbs that have purple skin and pinkish anatomy . These onions are idealistic for northerly gardeners ; they need around 100 - 120 days to reach maturity .
How To Grow Red OnionsFrom Planting To Harvest
While onions are biennial , they ’re hardy in USDA zones 5 through ten . you could originate blood-red onions in the spring , summer , or winter in areas with mild mood . If you want to add red onions to your garden , here is our planting to harvest guide to red onions … .
1. Amend The Soil For Onions
One of the key to rise red onion is to give them a good start with the good soil possible . The soil should be well - draining ; standing water will cause the bulbs to waste .
To start your onion plant bed off properly , make certain you use a hard rake or hoe to relax the stain . Remove all rocks and weed as well . Root crop need loose grease to grow down into the ground .
2. Plant Them In The Right Spot
Red Allium cepa need plenty of sun to originate properly . They produce well when they invite six to eight hours of sunlight per day .
bet for a location that does n’t have clay land . If the spot you have available is Henry Clay , you ’ll need to view using raise garden beds or row to create the downlike grunge .
3. Starting Red Onion Seeds
Growing red onions can be done either by growing seeds or originate scarlet onion sets . While onion solidification are easier , Allium cepa seed are an economical choice for gardeners , but growing red onions from seed takes plenty of patience .
4. Planting Red Onion Sets In Your Garden
Most gardeners favor to plant red onion plant sets rather than starting seeds because it ’s much faster . Remember , it takes a full year for the come to make a bulb . So , if you do n’t apply set , you ’ll await two years to harvest ; using onion set helps you reach maturity faster .
How to Care for Red Onions
Red onions do n’t ask too much peculiar aid compared to other vegetables , but there are a few things you should recall about like for these plant life in your garden .
1. Consistently Water Your Red Onions
Red onion roots are shallow when compared to other vegetables , so they need a consistent supply of water . The roots are closer to the surface rather than deep down . If the top few layers of territory are wry , then it ’s prison term to water .
2.Spread A Layer Of Mulch Over Your Red Onions
spread a layer of mulch around your ruddy onion can help continue some of the wet necessitate , which intend you have to be arid .
3. Watch For Weeds
skunk contend with your onion plant , so they ’re a no - go in the garden . You need always to give attention to weed growth because they will take away any nutrient in the soil that you added for your onions .
How And When to Harvest Red Onions
Waiting all of the month to harvest your red-faced onion can feel like an eternity , but it ’s what you ’ve been wait for this whole sentence ! You might start to wonder when to harvest red onion .
After a few week , you’re able to pull up red onion greens and use them as scallions in your recipe , but full - size red onion bulb do take months to grow and mature . Depending on when you establish the curing , your red onion bulb should be ready between late August and early October .
red-faced onion are ready for harvest when the bulbs are large , and the fleeceable tops set about to yellow and fall over .

As the red onions dry out and start to heal , the roots shrivel up up , and the neck dry . heal takes seven to ten daytime .
At that point , you could either plait the top for easy memory board or remove the crown with shears and put in them in a cool , ironic place . Red onions store the best when in a location between 35 - 50 ℉ .
Common Pests & Diseases That Bother Red Onions
While cherry-red onions might be easy to grow , that does n’t imply they are n’t without their problems . pestis and diseases love onion , so you have to battle them back . Here are some of the most common pests and disease that you might find in your onion plant patch .
One of the most usual fungi that could bother your flushed onion plant plants is downy mildew . If your onion stem are incessantly wet , the fungus can make grow ; it have intercourse moist arena without much air circulation .
You ’ll know that your onions have fluffy mould because the stems set forth to turn gray and produce a strange , fuzzy growth . you’re able to skip away the unnatural areas to store your plants .

If you happen trails of holes throughout your farewell , you might have leafminers . hard infestations can result in white splotch on the farewell and the leaves dropping from your plant untimely . An former plague might reduce your yield .
Leafminers are a small sinister and scandalmongering fly that repose their eggs on the leaves , and then the larvae hatch and feed on the leaves .
insure you murder your plants from your garden after harvesting so that they do n’t have a place to grow and dwell in the wintertime and spring . It ’s best to avoid spraying with an insecticide until the infestation is heavy ; you’re able to try neem vegetable oil as an organic atomiser .

No one likes deal with mites . They can have your plants to have stunt growth , and the bulbs might rot in the ground or storage .
Mites are tiny pest , measure less than one millimeter in distance . They ’re creamy - white , looking like small pearl with legs . It ’s essential to take caution of the problem because a mite infestation will make your flora vulnerable to pathogens and bacterium that could down it completely .
Some people find that neem oil color is an in effect way to regale mite populations .

If you notice stunted or wilted seedling , you might have onion maggots . These blighter can make the plants to break in the soil if you endeavor to pull up them out . If the infestation befall early , you ’ll find that the bulb are deformed and ineffective to store for long periods .
Onion maggot adults are a gray fly that place bloodless , elongated egg around the bag of your works . The larvae that emerge will yield into your plant life .
Managing onion plant maggots does rely on passable sanitation ; make indisputable to remove all onion light bulb at the last of the uprise season because maggots use them as a food source in the winter . you may try insecticide sprays or use floating dustup covers when you plant the onion to blockade the grownup onion maggots from laying testicle on the plants .
cause by thebotrytis alliifungi , this is another unwashed problem that onion plant industrial plant experience . If you see a muzzy , grey-headed fungus grow on your onion ’s head , you have onion neck opening rotting . As it progresses , the onion ’s head will rot and turn black .
It ’s hard to treat onion neck decomposition once it sets in , but this is one intellect why rotating your onion crops is all important . check that you always plant your onion in different property each year .
If you find light pink roots that darken and wrick purpleness , you have pink ascendent . Over metre , the roots become transparent and H2O - soak , and it might look like your plants have a alimentary deficiency . The unnatural plants might see scrawny growth .
The pink root is cause by a fungus that is absorbed through the root tips . It can live deeply down in your soil . This disease is most grievous when onions are planted in the same area unendingly , so you must rotate your crops . You also can plant disease - resistant motley .
This fungus causes small , urine - souse lesions on the leaves or stalk of your plant with white centers . Over time , those lesion develop and turn brown to purple . Some of the larger lesion can kill the tissue paper between them , and gravely infected flora will die .
This disease tends to bulge up when the leaf remain to appease blotto and the nights have high humidity . Gardeners need to check that they do n’t pee in the eve and space the plant life for proper air circulation .
you may try applying an organic fungicide if your plants have over-embellished splodge , but it may not solve . The most effective defense reaction is go around harvest and letting them dry out during the day .
Growing Red Onions
If you ’ve grown bloodless onions , you may sure enough learn how to farm and harvest crimson onions . They mature and harvest the same , and they are n’t any more complicated than white or chickenhearted varieties . Red onions have a mild , sweet spirit that makes them an fantabulous addition to your garden .
Written By
Bethany is a suburban homesteader , growing over half of the veg , fruit , and herbs that her menage of six need each year . She raise chicken and homeschools her children . When she is n’t spending time tending to her garden , you could find her reading , crochet , and force out .