Plant Care Tree Onion

Tree Onion

About Tree Onion

Tree Onion is a relatively rare houseplant 🌿 that needs regular watering to thrive. They do best in long-lasting, direct light ☀️ and should be less than 1 foot from a window.

Tree Onion likes soil that is well draining. Your plant shouldn't need added fertilizers if you repot each time it doubles in size.

Taxonomy

Allium x proliferum
Allium
Amaryllidaceae
Asparagales

Also known as

Topsetting Onions and Walking Onions

How to care for Tree Onion

💦 Water

How often to water your Tree Onion

Water needs for Tree Onion
0.5 cups
every 9

Tree 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 Tree Onion

Water 0.5 cups every
9

Does your plant get direct sunlight?

Select the pot size

5"
☀️ Light

Finding light for Tree Onion in your home

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

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

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

Tree Onion does not tolerate low-light 🚫.

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

🪴 Nutrients

How to fertilize Tree Onion

Nutrient, fertilizer, and repotting needs for Tree 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 Tree Onion after it doubles in size or once a year—whichever comes first.

Browse #TreeOnion
💡 FAQs
💦 Water Needs

Tree 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.

Tree Onion Water Frequency →

Tree Onion Root Rot →


☀️ Sunlight Needs

Tree 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 🏡.

Tree Onion Light Requirements →

Tree Onion Direct Sunlight Needs & Tolerance →


🐶 🐈 👶 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

Tree 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.

Tree Onion Humidity Needs →


🪴 Soil

Tree 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 Tree Onion →

When and How to Successfully Repot Tree Onion →


💩 Fertilizer

Tree 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!

How Much and When to Fertilize Tree Onion →


🌎 Native Region

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


🧐 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 Tree Onion

Tree Onion

Tree 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.

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