Broadstemmed onion
Also known as
Flat-stem onion
Taxonomy
Allium platycaule
Allium
Amaryllidaceae
Asparagales
How to care for Broadstemmed onion
How often to water your Broadstemmed onion

every 9
Broadstemmed 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
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 Broadstemmed onion in your home

a window
Broadstemmed onion may have difficulty thriving, and will drop leaves 🍃, without ample sunlight.
Place it less than 3 feet from a south-facing window to maximize the potential for growth.
Select your city to see how the current weather in your area affects the placement of Broadstemmed onion in your home 🏡.
How to fertilize Broadstemmed 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 Broadstemmed onion after it doubles in size or once a year—whichever comes first.
Care Summary for Broadstemmed onion
Broadstemmed onion
Greg recommends:
0.5 cups every 9 days
< 3ft from a window
Repot after 2x growth
Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.