Plant Care Corncob Cactus

Corncob Cactus

4.7 out of 5 (3 experiences)

Corncob Cactus has a Large, lush leaves plant personality Large, lush leaves
Corncob Cactus has a Survivor plant personality Survivor

Also known as

Corncob Euphorbia, corn cob cactus, Indian Corn Cob, Variegated Corn Cob Cactus, euhorbia mamillaris, euphorbia mammilaris and Euphorbia Venenifica

Taxonomy

Euphorbia venefica
Euphorbia
Euphorbiaceae
Malpighiales

How to care for Corncob Cactus

💦 Water

How often to water your Corncob Cactus

Water needs for Corncob Cactus
0.5 cups
every 12

Corncob Cactus needs 0.5 cups of water every 12 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 Corncob Cactus

Water 0.5 cups every
12

Does your plant get direct sunlight?

Select the pot size

5"
☀️ Light

Finding light for Corncob Cactus in your home

Light needs and placement for plant Corncob Cactus: 1ft from a window
1ft or less from
a window

Corncob Cactus love being close to bright, sunny windows 😎.

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

Corncob Cactus does not tolerate low-light 🚫.

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

🪴 Nutrients

How to fertilize Corncob Cactus

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

💡 FAQs
⭐ Difficulty Level

Corncob Cactus is generally considered an easy-to-care-for plant and makes a great choice for beginners!

Benefits of Growing Corncob Cactus →

Common Corncob Cactus Problems →


💦 Water Needs

Corncob Cactus thrives in dry soil and should be watered sparingly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Corncob Cactus Water Frequency →

Corncob Cactus Root Rot →


☀️ Sunlight Needs

Corncob Cactus 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 🏡.

Corncob Cactus Light Requirements →

Corncob Cactus 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

Corncob Cactus enjoys lots of humidity. Provide humidity for your plant by watering regularly and thoroughly, since plants absorb most water through their root system rather than their leaves. They may also benefit from being placed next to a humidifier.

Corncob Cactus Humidity Needs →


🪴 Soil

Corncob Cactus is very sensitive to wet soil, so choose a potting soil that drains very well and doesn’t retain too much moisture. A good soil will have lots of perlite or vermiculite for drainage and some organic matter for nutrition. A few handfuls of perlite added to regular store-bought cactus soil will do the trick!

Best Soil Mix for Corncob Cactus →

When and How to Successfully Repot Corncob Cactus →


💩 Fertilizer

Corncob Cactus grows very slowly and doesn’t require added fertilizer. Replacing your plant’s potting soil once a year should provide them with more than enough nutrition. Remember, plants get their energy from sunlight, not fertilizer!


❄️ Dormancy

It’s common for Corncob Cactus to go dormant in the wintertime and you may notice their growth slow down. Waterings should be spaced out more during this time.


🌎 Native Region

Corncob Cactus is native to Worldwide.


⬆️ ⬇️ Growth Pattern

Corncob Cactus grows vertically and new growth will emerge from the top of the plant.

How and When to Prune Corncob Cactus →


🌦️ Growing Outdoors

USDA Hardiness Zone
Corncob Cactus can be grown outdoors in USDA Hardiness Zones 9a-11b. Find your local hardiness zone here.

Corncob Cactus 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 Corncob Cactus

Corncob Cactus

Corncob Cactus


Greg recommends:

Water

0.5 cups every 12 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

Corncob Cactus has a Large, lush leaves plant personality Large, lush leaves 1
Corncob Cactus has a Survivor plant personality Survivor 1
@SirLiquorice avatar
@@SirLiquorice
leaf-1 143 Plants
xp 18,538 XP
12/20/2021

Just like the uniqueness of this one. Lol I said it has large lush leaves but it doesn’t. They’re tiny actually.

Large, lush leaves Large, lush leaves
Lachie avatar
@Lachie
leaf-1 8 Plants
xp 174 XP
06/19/2021

Grows up to be a vine

Survivor Survivor

Trending in your area

Similar to Corncob Cactus

Discover rare plants