Colocasia Plug Plants: How to Grow and Care for Elephant Ears in the UK

Colocasia, commonly known as Elephant Ears, is a stunning tropical plant that brings an exotic vibe to any garden. With its bold, heart-shaped leaves and architectural presence, it’s a favourite among UK gardeners looking to create a lush, jungle-like feel. But how do you grow Colocasia successfully in the UK climate? Let’s dive into everything you need to know.

Is Colocasia Hardy in the UK?

Colocasia is not fully hardy in most parts of the UK. These plants originate from warm, humid regions and thrive in temperatures above 10°C. In mild coastal areas or sheltered gardens, they may survive outdoors with protection, but generally, they need extra care during colder months. Frost will damage or kill the plant, so overwintering is essential.

How Do You Grow Colocasia in the UK?

Growing Colocasia in the UK requires a little planning:

• Start with Plug Plants: These are young plants that establish quickly. Pot them up in nutrient-rich compost and keep them warm until all risk of frost has passed.
• Choose the Right Spot: Colocasia loves moist soil and partial shade. A boggy border or near a pond is ideal.
• Water Generously: These plants are thirsty! Keep the soil consistently damp, especially during summer.
• Feed Regularly: Use a high-nitrogen fertiliser every couple of weeks to encourage lush foliage.

How to Overwinter Colocasia in the UK?

Because Colocasia dislikes cold, you’ll need to protect it:

• Lift and Store: After the first frost, cut back the foliage and lift the tubers.
• Dry and Clean: Allow them to dry for a few days, then store in a cool, frost-free place (like a garage or shed) in slightly damp peat or compost.
• Indoor Option: Alternatively, keep the plant in a pot and move it indoors to a bright, warm spot for winter.

Can You Grow Colocasia in Pots?

Absolutely! Colocasia grows beautifully in containers, making it perfect for patios or small gardens.

• Use Large Pots: These plants need space for their roots and plenty of moisture.
• Add Water Retention: Mix compost with water-retaining granules or stand pots in trays of water during summer.
• Move Indoors in Winter: This is the easiest way to protect them from frost.

Final Tips for Success

• Start early in spring for the best growth.
• Keep them well-fed and watered for dramatic foliage.
• Overwinter carefully to enjoy them year after year.