Costa Farms


Passionate about plants? So are we! Costa Farms is a wholesale grower that discovers, develops, and grows plants for your home and life -- indoors and out. We’re your online gardening resource for plant info and inspiration. Our articles, blogs, tips, and photos help you use plants to beautify your living spaces and enhance your life.

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Crown of Thorns

Euphorbia milii

Crown of Thorns Plant Features

Crown of thorns is a flowering indoor plant that boasts cheerful blooms in a wide range of colors. The two-petaled flowers almost look like little butterflies! The blooms are a delicate contrast to the plant's extremely spiny stems. This easy-to-grow houseplant is sure to be a showpiece wherever you grow it in your home! Just be sure to keep crown of thorns away from walkways and other spots where you might encounter its spines.

Crown of Thorns Questions?
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Crown of Thorns Growing Instructions

Grow crown of thorns in bright light for the most blooms. You can grow it in medium light, but if this houseplant doesn't get enough light, it doesn't produce flowers. Direct sun on the leaves is fine, even in hot-summer climates.

Water crown of thorns sparingly. This easy-to-grow houseplant is actually a succulent; it may need water only once every couple of weeks. If it stays too wet, the plant will drop all of its leaves and rot, so be sure to give your crown of thorns good drainage. 

Fertilizing your crown of thorns in spring and summer can also help it bloom better. While it can get by with fertilizer just once or twice a year, feeding it more can certainly help it produce a bigger, better display. When feeding this flowering houseplant, be sure to follow the directions on the fertilizer package. 

Crown of thorns is not intended for human or animal consumption.

  • Light

    Indoors: High light

  • Colors

    Orange, Pink, Red, Variegated, White, Yellow

  • Water

    Low water needs

  • Special Features

    Super-easy to grow

Varieties: Our Favorites

Euphorbia milii 'Brush Fire' Brush Fire Crown of Thorns

Euphorbia milii 'Brush Fire'

Brush Fire crown of thorns bears rosy-red flowers.

Exotic Angel® Plants
Euphorbia milii 'Creme Supreme' Creme Supreme Crown of Thorns

Euphorbia milii 'Creme Supreme'

This easy-to-grow houseplant features creamy-white flowers.

Exotic Angel® Plants
Euphorbia milii 'Gabriella' Gabriella Crown of Thorns

Euphorbia milii 'Gabriella'

Gabriella is a lovely variety that produces soft, rosy-pink flowers.

Exotic Angel® Plants
Euphorbia milii 'Pieta' Pieta Crown of Thorns

Euphorbia milii 'Pieta'

Pieta crown of thorns offers soft, salmon-pink flowers.

Exotic Angel® Plants