Plant Care Bulb Onion

Bulb Onion

Also known as

Globe Onion, Globe Onion, Onion, Bulb onion, Common onion, Green Onion, Evergreen White Bunching Onion, Sweet Spanish Yellow Utah, White Lisbon Bunching Onion, Brown Onion, Spring Onion, Yellow Onion, Vidalia sweet onion, red onion, Purple Onion and Yellow Sweet Onion


Allium cepa

How to care for Bulb Onion

💦 Water

How often to water your Bulb Onion

Water needs for Bulb Onion
0.5 cups
every 9

Bulb 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.

Calculate water needs of Bulb Onion

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size

☀️ Light

Finding light for Globe Onion in your home

Light needs and placement for plant Bulb Onion: 1ft from a window
1ft or less from
a window

Bulb Onion love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Bulb Onion does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Bulb Onion in your home 🏡.

🪴 Nutrients

How to fertilize Bulb Onion

Nutrient, fertilizer, and repotting needs for Bulb Onion: repot after 2X growth

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 Bulb Onion after it doubles in size or once a year—whichever comes first.

Browse #GlobeOnion
💡 FAQs
⭐ Difficulty Level

Bulb 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!

Benefits of Growing Globe Onion →

Common Globe Onion Problems →

💦 Water Needs

Bulb 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.

Globe Onion Water Frequency →

Globe Onion Root Rot →

☀️ Sunlight Needs

Bulb 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 🏡.

Globe Onion Light Requirements →

Globe Onion Direct Sunlight Needs & Tolerance →

🐶 🐈 👶 Toxicity

Bulb Onion is not safe to consume. If you, a family member, or a pet has ingested any amount of plant material contact Poison Control, US (800) 222-1222, or your veterinarian. If you have children, cats, or dogs in the home, we suggest keeping this plant out of reach.

💨 Humidity

Bulb 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.

Globe Onion Humidity Needs →

🪴 Soil

Bulb 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!

Best Soil Mix for Globe Onion →

When and How to Successfully Repot Globe Onion →

💩 Fertilizer

Bulb 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

Bulb Onion is native to the Northern Hemisphere, South America, and Africa.

⬆️ ⬇️ Growth Pattern

Bulb Onion grows vertically and new growth will emerge from the top of the plant.

How and When to Prune Globe Onion →

🌦️ Growing Outdoors

USDA Hardiness Zone
Bulb Onion can be grown outdoors in USDA Hardiness Zones 5a-10b. Find your local hardiness zone here.

Globe Onion Temperature Tolerance →

🧐 Troubleshooting

When troubleshooting a sad-looking houseplant, start by checking for signs of distress in its leaves, such as yellowing, browning, or drooping, which can indicate overwatering or nutrient deficiencies.

Inspect the soil moisture; too dry or too wet soil can cause problems.

Ensure the plant is getting the right amount of light, as too much or too little can stress it.

Finally, consider environmental factors like temperature and humidity, and adjust care routines accordingly to revive your plant.

Care Summary for Bulb Onion

Bulb Onion

Bulb Onion

Greg recommends:


0.5 cups every 9 days


< 1ft from a window


Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

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