Plant Care Crown of Thorns

Crown of Thorns

4.6 out of 5 (24 experiences)

Crown of Thorns has a Survivor plant personality Survivor
Crown of Thorns has a Blooms easily plant personality Blooms easily

About Crown of Thorns

The crown of thorns Euphorbia is a relatively common flowering houseplant that comes with a pop of color during the blooming season. Native to Madagascar, they are used to repel snails due to the toxic compounds in their sap. The sap can be irritating to humans as well, so be sure to handle with care! ⚠️


Euphorbia milii

How to care for Crown of Thorns


How often to water your Crown of Thorns

Water needs for Crown of Thorns
0.5 cups
every 12

Crown of Thorns 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 Crown of Thorns

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


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 Crown of Thorns in your home

Light needs and placement for plant Crown of Thorns: 1ft from a window
1ft or less from
a window

Crown of Thorns love being close to bright, sunny windows 😎.

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

Crown of Thorns does not tolerate low-light 🚫.

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


How to fertilize Crown of Thorns

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

Difficulty Level

Crown of Thorns 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
Sunlight Needs
Native Region
Growth Pattern
Growing Outdoors
Common Issues

Care Summary for Crown of Thorns

Crown of Thorns

Crown of Thorns

Greg recommends:


0.5 cups every 12 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.

What other plant parents say

Crown of Thorns has a Survivor plant personality Survivor 16
Crown of Thorns has a Blooms easily plant personality Blooms easily 10
Crown of Thorns has a Fast grower plant personality Fast grower 8
Crown of Thorns has a Large, lush leaves plant personality Large, lush leaves 4
Crown of Thorns has a Easy to propagate plant personality Easy to propagate 3
Crown of Thorns has a Browns easily plant personality Browns easily 3
Crown of Thorns has a Pest magnet plant personality Pest magnet 1
Loyallentil avatar
leaf-1 3 Plants
xp 44 XP
globe Minneapolis, MN

Be prepared to have this forever- my dad gave me this after having it for over a decade!

Survivor Survivor
Tednyc21 avatar
leaf-1 20 Plants
xp 349 XP
globe New York

Beautiful, but watch out for those thorns behind the leaves!

Large, lush leaves Large, lush leaves
Fast grower Fast grower
Blooms easily Blooms easily
Survivor Survivor
Stubby avatar
leaf-1 26 Plants
xp 1,750 XP

I feel like I do nothing for this plant and it just thrives off of neglect. Plus, it always has new beautiful flowers coming in which is awesome

Fast grower Fast grower
Blooms easily Blooms easily
Survivor Survivor
Erodplants avatar
leaf-1 109 Plants
xp 2,748 XP

I love this plant, it was given as a gift. The blooms have been since June 2nd , not direct sun but near sun for sure. Water once a week.

Blooms easily Blooms easily
Survivor Survivor
Claire avatar
leaf-1 2 Plants
xp 230 XP

It's thorny hence why I named mine Thor lol

Survivor Survivor
Fast grower Fast grower
Erickalyn78 avatar
leaf-1 22 Plants
xp 311 XP
globe Port Angeles, WA

This is my all time FAVORITE houseplant. I’ve never had one before and when I bought it at the store there was no tag identifying what it was but this plant it so cool! I have it in my kitchen window. It blooms all the time!!

Blooms easily Blooms easily
Survivor Survivor
Fast grower Fast grower
Jennalea__ avatar
leaf-1 26 Plants
xp 606 XP
globe Dallas, TX

I took this plant the day of my grandmother funeral. These were her favorite plants she had and taking cuttings from her garden to bring back to my home 8 hours away helped me cope. This plant sat in water for a few months, rooted and I planted it into soil. Now there has been times where I thought it was going to die on me but it shows signs of improper care before it starts to die. This plant is my most prized possession.

Easy to propagate Easy to propagate
Survivor Survivor
Blooms easily Blooms easily
Tonim419 avatar
leaf-1 2 Plants
xp 64 XP

says it’s hardy but not for me…she’s dying 😭

Browns easily Browns easily
Willisholden avatar
leaf-1 9 Plants
xp 148 XP
globe Dunedin, Otago

You may have to move it away from the window at night if it gets frosty. It loves direct sun. But don’t water it during peak sun, the leaves could burn. It is from Madagascar, so make sure the soil matches. Good drainage and a terracotta pot works wonders. I had to bring back mine from the dead.

Survivor Survivor
Undomesticatedturtle avatar
leaf-1 2 Plants
xp 96 XP
globe Morgantown, WV

The plant does not tolerate soaked soil so make sure to prioritize drainage. It produces small, but vibrant and beautiful pink flowers and has done so regularly for me outside of winter time. The flowers and the leaves however are extremely brittle and fragile.

Blooms easily Blooms easily
Browns easily Browns easily
Jimbyjoop avatar
leaf-1 5 Plants
xp 340 XP

when i moved it to direct sunlight, at first the leaves dropped and it lost its flower, but it’s recovered after the shock. low maintenance, unless you really want to get a flower

Survivor Survivor

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