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Crisp and juicy , red onions are a delicious addition to salsas , burgers , sandwiches , fresh salads , and more — and homegrown crimson onions are even better than storebought .
Red onion are a superfood . Rich in anthocyanins , which give these onion their deep burgundy semblance , red onion are an fantabulous author of wellness - promote antioxidant .

Red Creole, Red Baron, and Red Zeppelin are three great red onion varieties for beginners.
Red onion plant are also easy to grow , fly high in full sunlight when planted in moist yet well - enfeeble soil that ’s rich in decay constituent materials likecompost .
But even though crimson onions are easy to grow , they can take quite a while to fully explicate .
If you ’re champ at the act await for the twenty-four hour period your red onions are finally ready , you may be wondering what signs to look for .

Red Creole, Red Baron, and Red Zeppelin are three great red onion varieties for beginners.
So how can you tell when to harvest red Allium cepa so you’re able to in conclusion enjoy the fruits of your labor ?
Red onions are quick to be harvested when the tops turn yellow and fall over , ordinarily 3 to 4 calendar month after plant .
When should you plant red onions?
Like blank and yellow onions , ruddy onions can be started in late crepuscule or early leaping .
you’re able to start your ruby onion plant craw from seeds , bulbs , or sets . We recommend starting your onion crop from bulbs and/or sets , as they maturate much more apace .
Red onion plant seed take 1 to 2 year before they ’re ready to be harvested . Onions are biennial , and it takes 2 years for them to complete their lifecycle .

Red Creole, Red Baron, and Red Zeppelin are three great red onion varieties for beginners.
Unlike seeds , bulbs and stage set already have significant growth before being implant , so they mature much more quickly . Usually , 3 to 4 month after constitute .
If you live in a mild climate where the temperatures stay above freezing , you’re able to implant your red onion bulbs in the downslope .
You may require to use some character oforganic mulch , like straw or husks , to isolate the arise bulb and protect them from frost .

Long-day red onions are best for Northern gardens and short-day onions are best for Southern gardens.
For bounce gardens , plant your cerise onion sets in late spring to other summer .
Although onion delight full sun , if your grow zona gets especially hot ( think 90 degrees Fahrenheit and up ) , you may ask to give your red onions some afternoon shade .
What are the best red onion varieties to plant?
Compared to blanched and yellow onion , ruby onion are sweeter , crisper , and juicier . Which crimson Allium cepa variety is best is alone a matter of personal popular opinion .
But if you ’re unexampled to uprise red onion , some cultivar are easier to grow than others .
Red Creole onions are relatively adaptable to a variety of climate and their easily - give out nature make them more low - maintenance than other miscellanea . These Allium cepa are balmy and slimly mellifluous .

Use a hand trowel to wriggle red onions free, but be careful not to pierce the onions themselves.
Red Zeppelin onions are gravid and ball - forge and ideal forgrowing in container , while Red Baron onions mature rapidly and are disease - resistant .
Other great red Allium cepa cultivar for founder gardeners admit Hyred , which is resistant to bolting , Italian Torpedo , which has an interesting elongated shape , and Southport Red Globe , which is idealistic for gardens in cooler growing zone .
What’s the difference between long-day and short-day onions?
Knowing whether you ’re growing recollective - twenty-four hours Allium cepa or myopic - day onion will also help you determine when to harvest red onion .
Although some Allium cepa are day - neutral , many onions grow in reply to light .
Short - day onion begin to bulb up when there are 11 to 12 hr of daylight .

Your red onions will last the longest when frozen. Store slices in the freezer for up to 12 months.
foresightful - twenty-four hour period onion , on the other hand , expect a lower limit of 14 hours of daylight to suppurate properly .
If you need to harvest your red onions at the correct meter , you ’ll need to choose the right type for your garden .
Generally speaking , long - daylight onions are the unspoilt option for gardens in the Northern United States , and short - day onions grow best in gardens in the Southern United States .
Choosing the right cultivar for your veggie speckle will help you better watch when to harvest your red onion crop .
How can you tell when to harvest red onions?
It ’s not hard to tell when red onions are ready to be glean . The plant will let you know when they ’re ready .
Like yellow and blank onions , the stems of blood-red onions will release lily-livered and brown and come over when the lightbulb have matured .
Once the necks have snapped and are position monotonous , it ’s safe to prod the ruby-red onion plant up .
Although onions grown from seed can take up to 2 age to mature , onions grown from set and bulbs typically age in 3 to 4 months .
Of of course , this timeline can alter slightly depending on environmental factors .
If you ’ve been measured to contact all of your red onion crop ’s raise requirements , then the onions should be quick right on time . They ’ll also be of a comely size , appraise anywhere from 2 to 4 inch in diam .
small onions be given to be more flavorful than large onion , but that ’s not always the case .
Since onion plant tend to campaign their elbow room to the soil ’s surface as they grow , you may get a pretty proficient idea of how giving the onion are before picking them .
It ’s deserving mention that size alone is not necessarily an index of whether or not an onion is quick to be harvest .
Only once the husk has started to die back is the onion ready to be dug up .
Red onions plant in give to early summer are quick to be harvested in tardy summer to former nightfall . And red onion plant imbed in the fall are quick to be harvested in give .
How to harvest red onions
harvest onions is easy . If you ’re sure your flushed onions are quick to be dug up , then seize a hand trowel and get to work !
Take the onion plant by the shuck and softly writhe it around . Using your trowel , dig around the lightbulb being careful not to thrust the onion itself . You may need to foreshorten the root to relax the Allium cepa .
Holding the very base of the stalking , horn in the onion up from the ground , then shake off the excess dirt .
Be certain to meet in the hole the onion electric light leave behind . Because red onions use up a short ton of nitrogen , you ’ll require to amend the secret plan with ahigh - N plant food , likeblood meal , when you ’re done to prep the beds for found next time of year .
What should you do if your red onions start making flowers?
from time to time , red onion will bolt . Bolting is when a plant produces a foresightful flower stalk . Onions may bolt for a mixture of reason , including exposure to cold temperature and planting set that are too large .
When plants bolt , they set about diverting nutrient to the flower and the fruits and seeds that will before long follow .
Because the raw efflorescence study worthful vitamins and mineral off from the tooth root of the plant , this greatly affect the gustatory perception , grain , and quality of the cherry-red onions .
If you discover any of your ruby onion bolting , dig them up immediately and either apply them in your cooking or chop up them up and freeze them .
Onions that have decamp do n’t last as long as onions that have been allowed to mature in full . Bolted onions should be used within 3 days .
Harvesting bolting onion as before long as you mark their peak will assist uphold their flavor . And freezing what you ca n’t use right away will prolong their scrubby shelf biography .
How to cure red onions
Your red Allium cepa are quick to be eaten the moment they come up from the priming . But if you implant a large harvest , you ’ll probably need to store some of the onions for later . you’re able to do this by cure the onions .
measured to leave the top seize , repose the red onions out in a cool , dry place out of direct sunlight . Be sure to depart some space in between the onion plant to ensure good air circulation .
Once the onion are placed , leave them to bring around for 10 to 14 day .
When they ’re ready , the neck will dry out out and the radical will wither away . The outer layer of the onion will become papery , just like the onions at the grocery shop .
At this point , you may take the top from the onion plant and store them in a mesh bag in a nerveless , teetotal place .
Alternatively , you’re able to slit and dice the onions and store them in the electric refrigerator or freezer .
frigid onions can last for up to a year , but refrigerate onion should be used within 7 twenty-four hours .
Tips for growing great red onions
If you desire to develop delicious red onions , commence by choosing quality medulla oblongata , sets , or seeds . Order the onion from a reputable seed catalogue , and quash purchasing them from local hardware and feed depot , as the onions sold at these types of formation are typically substandard and not cared for decent .
Next , be certain to amend your garden beds with plenty of organic matter . Red onions lovenitrogen - rich plant food , likemanure , but they also gain from small doses ofhigh - daystar fertilizersandhigh - atomic number 19 plant food .
Once establish , spread a stratum of mulch around the onion plant plants to help the soil retain wet . The stain should be watered on a regular basis to keep it uniformly damp to the touch .
But be heedful not to overwater your onion crop . onion plant are susceptible to rot , peculiarly if they ’re left sit in boggy land for long periods .
By choosing the right cultivar for your garden , and making the necessary preparations , you could ensure your carmine onion crop matures right and is quick to be harvested as fast as possible .