Jerusalem artichokes, with their nutty flavour and versatility in the kitchen, have gained popularity among home gardeners in the UK. As autumn approaches, the time to harvest these tubers draws near. Proper timing and techniques are crucial to ensure you enjoy the full bounty of your Jerusalem artichoke crop. In this article, we’ll explore when and how to harvest Jerusalem artichokes in the UK for the best flavour and storage.
When to Harvest Jerusalem Artichokes in the UK:
The timing of Jerusalem artichoke harvest largely depends on the weather and the specific growing conditions in your area. In the UK, the ideal time to begin harvesting Jerusalem artichokes is typically from late autumn to early winter, around October to December.
The reason for waiting until after the first frost is that the cold weather helps convert the starches in the tubers into sugars, resulting in a sweeter and more flavourful taste. However, you don’t want to leave them in the ground for too long, as prolonged exposure to freezing temperatures can damage the tubers.
Harvesting Technique:
1. Loosen the Soil: Before harvesting, use a garden fork or spade to gently loosen the soil around the base of the Jerusalem artichoke plants. This makes it easier to lift the tubers without damaging them.
2. Lift Carefully: Gently lift the tubers from the soil by digging under them with a fork or spade. Be cautious not to puncture or bruise the tubers during this process.
3. Trim Stems: Once the tubers are lifted, you can trim the stems close to the top of the tuber. This reduces the risk of disease spreading during storage.
4. Brush Off Soil: Gently brush off excess soil from the tubers. Avoid washing them at this stage, as moisture can encourage spoilage during storage.
Storage:
Jerusalem artichokes store best in cool, dark, and dry conditions. After harvesting, follow these steps to ensure their long-lasting freshness:
1. Curing: After harvesting, allow the tubers to air-dry for a few hours to allow any excess moisture to evaporate.
2. Choose the Right Storage Container: Place the cleaned and dried tubers in a well-ventilated container, such as a wooden box or a mesh bag. Avoid using plastic bags, as they can trap moisture and lead to rot.
3. Cool and Dark Location: Store the container in a cool and dark place, such as a root cellar or a cool basement. The temperature should ideally be around 32-40°F (0-4°C) to prevent sprouting and spoilage.
4. Regular Check-ups: Periodically check the stored tubers for any signs of rot or decay. Remove any affected tubers promptly to prevent them from spoiling the rest.
Final Thoughts:
Harvesting Jerusalem artichokes in the UK is a rewarding endeavour that requires proper timing and care. By waiting until after the first frost and following the correct harvesting and storage techniques, you can enjoy the delicious, nutty flavour of these versatile tubers throughout the colder months. Remember that each growing season can vary, so pay attention to your local climate and conditions to determine the optimal time for harvesting your Jerusalem artichokes.