Tips & Guides

How to Plant and Maintain Beautiful Crown of Thorns

Written by Emily Belkoff

When I first brought home my Crown of Thorns plant, I was terrified of killing it. But three years and countless blooms later, this resilient beauty has become my favorite low-maintenance houseplant. 

If you’re ready to add some year-round color to your home, let me show you how to care for these stunning plants.

Basic Characteristics

When my friend Sarah first saw my Crown of Thorns, she couldn’t believe it was real. The scientific name is Euphorbia milii ‘Splendens’, but don’t let that fancy name intimidate you.

These beauties are true survivors and will bloom all year long when treated right.

Just watch out for the milky sap – it reminds me of our Christmas poinsettias, and like those holiday favorites, you’ll want to keep it away from curious little hands.

Types and Varieties

Traditional Varieties

My first Crown of Thorns was a classic dwarf variety, perfect for smaller spaces.

The thorns might look scary, but they’re actually quite soft compared to rose thorns – I learned this while repotting mine with my gardening gloves forgotten inside.

If you’re feeling fancy, there are even variegated versions that add an extra pop of color to your collection.

Modern Hybrids

The plant world never stops amazing me! Thailand has developed some spectacular hybrid varieties that will make your jaw drop.

These new varieties showcase massive blooms in stunning color combinations – my favorite is the Confetti variety with its speckled petals.

Some hybrids are grafted because they’re a bit particular about growing their own roots, but don’t let that scare you off.

Growing Requirements

Light and Temperature

Let me tell you about my first Crown of Thorns fail – I tried keeping it in my shady living room. Big mistake!

These sun-lovers need bright, direct light to thrive. Think desert conditions – the more sun, the better.

I learned to bring mine inside before the first autumn chill, as they’re real sunshine-and-warmth enthusiasts.

Watering and Soil

Here’s my number one tip: when in doubt, don’t water! These plants are like my teenage son – they’d rather be left alone than fussed over too much.

I plant mine in well-draining soil and only water when the soil feels completely dry.

Cold, wet conditions are their kryptonite, so I’m especially careful with watering during cooler months.

Fertilization

Feeding these plants is like serving snacks to toddlers – a little goes a long way.

I add about 1/4 teaspoon of fertilizer per gallon of water every other watering during the growing season.

Sometimes I’ll sprinkle a tiny bit of slow-release fertilizer on top of the soil instead – both methods work great.

Maintenance and Care

Pest Management

One of the things I love most about my Crown of Thorns is how pest-resistant it is – it’s like having a plant with a built-in security system!

However, I still check occasionally for spider mites, whitefly, and mealybugs, especially if it’s near other plants that might be affected.

Pruning Techniques

Don’t be afraid to give your plant a haircut! I usually prune mine during summer when it’s growing strong.

Making cuts just above where leaves meet the stem encourages bushier growth – I learned this after my plant started looking like a tall, leggy teenager.

Remember to let those pruning cuts dry out before you try propagating them.

Propagation Methods

Starting new plants is easier than I expected! Just remove any flowers from your cutting and let it dry for 3-4 days.

Watch out for that sticky sap when you’re taking cuttings – I always keep paper towels handy for quick cleanup.

Once the cut end has calloused over, just pop it into some potting mix and wait for the magic to happen.

Wrapping Up

Growing Crown of Thorns has taught me that sometimes the most beautiful things come with a few thorns, but they’re absolutely worth the effort. With these tips and a sunny window, you’ll be enjoying these lovely blooms all year round, just like I do!

Hi! I'm Emily!

I'm a mom who's passionate about creating beautiful gardens without the hassle. Here, I share simple tips that actually work for busy people like us.

From picking the right plants to making them thrive, I'll help you create an outdoor space you'll love!

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