Spring Onion
4.9 out of 5 (14 experiences)
Fast grower
Easy to propagate
Also known as
Long Green Onion, Long Green Onion, Welsh Onion, Japanese Bunching Onion, scallions, green onion, Scallion, Scallions and green onion
Taxonomy
Allium fistulosum
Allium
Amaryllidaceae
Asparagales
How to care for Spring Onion
Water
How often to water your Spring Onion
every 9
Spring Onion needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.
Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.
Water 0.5 cups every
9
Light
Check the growing potential in your area
A plant's growing potential is determined from its location, the time of year, and current local weather.
Select a city to check sunlight intensity
Finding light for Long Green Onion in your home
a window
Spring Onion love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Spring Onion does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Spring Onion in your home 🏡.
Nutrients
How to fertilize Spring Onion
Most potting soils come with ample nutrients which plants use to produce new growth.
By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.
To replenish this plant's nutrients, repot your Spring Onion after it doubles in size or once a year—whichever comes first.
FAQs
Spring Onion is generally easy to care for, though some plant parents report facing challenges with growing it. Check out the reviews down below to read more about their experiences!
Water Needs
Spring Onion prefers for the soil to dry out between waterings and should be watered regularly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.
Sunlight Needs
Spring Onion requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.
Toxicity
Greg does not have confirmed data on this plant’s toxicity. If you, a family member, or a pet consumes plant material of unknown toxicity, it’s always best to consult a medical professional.
If you or someone else ingested this plant, call Poison Control at US (800) 222-1222. If a pet consumed this plant, contact your veterinarian or the ASPCA at US (888) 426-4435.
Humidity
Spring Onion doesn’t require additional humidity. Plants absorb most water through their root system rather than their leaves, so the best way to provide humidity for your plants is through watering the soil.
Soil
Spring Onion does best in well-draining soil. A good soil will contain lots of organic matter such as coco coir as well as perlite or vermiculite to help with drainage. Adding a handful of perlite to regular store-bought potting soil should do the trick!
Fertilizer
Spring Onion should be repotted after it doubles in size or once a year, whichever comes first. Fresh potting soil has all the nutrients your plant needs, so as long as it’s refreshed yearly, you shouldn’t need to use fertilizer. Remember, plants get their energy from sunlight, not fertilizer!
Native Region
Spring Onion is native to the Northern Hemisphere, South America, and Africa.
Growth Pattern
Spring Onion grows vertically and new growth will emerge from the top of the plant.
Growing Outdoors
USDA Hardiness Zone
Spring Onion can be grown outdoors in USDA Hardiness Zones 3a-9b. Find your local hardiness zone here.
Care Summary for Spring Onion
Spring Onion
Greg recommends:
Water
0.5 cups every 9 days
Placement
< 1ft from a window
Nutrients
Repot after 2x growth
Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.
What other plant parents say
Fast grower 11
Easy to propagate 11
Survivor 5
Blooms easily 2
Browns easily 1
04/08/2022
So easy to grow from the grocery store and you can harvest quickly!
Fast grower
Easy to propagate
Blooms easily
11/28/2021
DIY little garden! Start to grow roots insanely fast, easy to pot, easy to grow!
Fast grower
Easy to propagate
11/25/2021
i just plant the roots from the green onions i buy at the grocery. you can get like 3 rounds of green onions for cooking before they start to grow funky
Fast grower
Easy to propagate
Blooms easily
Survivor
08/01/2021
Everyone should grow their own green onion. It’s stupid easy to grow indoors and outdoors, you get fresh green onion whenever you want, it’s nice!
Fast grower
Easy to propagate
Survivor
Browns easily
07/11/2021
I started these from the ends of green onions I got at the grocery store. All I did was stick them in some dirt and they started sprouting! Really easy to repot them.
Fast grower
Easy to propagate
06/14/2021
Nothing you need to know, they are just so adorable and fast growers!
