Growing Bangladeshi Arum (Colocasia esculenta) in the UK can be a rewarding experience. Arum, also known as taro or colocasia, is a tropical plant that requires specific conditions to thrive. However, with some adjustments and careful attention, you can successfully grow it in the UK. Here are some ideas and guidelines to help you:

1. Variety selection: Choose a variety of Bangladeshi Arum that is known for its adaptability to different climates and has a shorter growing season. Some suitable varieties include ‘Bangladesh’, ‘Hawaii’, or ‘Edison’.

2. Climate considerations: Arum plants prefer warm and humid conditions. To mimic these conditions in the UK, consider growing Bangladeshi Arum in a greenhouse or a polytunnel. These structures can provide the necessary warmth, humidity, and protection from harsh weather.

3. Soil requirements: Arum plants thrive in well-draining, fertile soil. Prepare the soil by adding organic matter like compost or well-rotted manure to improve its structure and fertility. Maintain a slightly acidic to neutral pH level, ideally around 5.5 to 7.

4. Planting: Start by acquiring healthy Arum corms or tubers from a reputable source. Plant them in spring, once the risk of frost has passed. Dig a hole that is large enough to accommodate the corm and place it with the pointed end facing upwards. Cover it with soil, ensuring that the top of the corm is just below the soil surface.

5. Sunlight: Choose a sunny spot for growing Arum where it can receive at least 6 hours of sunlight per day. If you’re growing it in a greenhouse, provide ample sunlight or use grow lights to supplement the natural light.

6. Watering: Arum plants require consistent moisture to grow well. Keep the soil evenly moist throughout the growing season, but avoid waterlogging. Regularly check the moisture level and adjust your watering accordingly.

7. Fertilization: Apply a balanced, slow-release fertilizer when planting, following the package instructions. Additionally, feed the plants with a liquid fertilizer high in potassium and phosphorus every two to three weeks during the growing season.

8. Mulching: Apply a layer of organic mulch, such as straw or wood chips, around the plants to help conserve moisture, suppress weed growth, and regulate soil temperature.

9. Pest and disease control: Monitor your plants regularly for pests such as aphids or slugs. Use organic pest control methods like handpicking or spraying with insecticidal soap if necessary. Be vigilant for signs of common diseases like leaf blight or root rot, and promptly address any issues to prevent their spread.

10. Harvesting: Bangladeshi Arum plants usually mature in around 6 to 9 months. Harvest the corms when they have reached a suitable size for consumption. Carefully dig them out of the soil, being cautious not to damage the plant or surrounding tubers.

Remember that growing tropical plants like Bangladeshi Arum in a different climate requires extra effort and attention. Regularly monitor the plants, provide suitable growing conditions, and make adjustments as needed. With time and experience, you’ll develop a better understanding of the specific requirements of your Arum plants in the UK.