How to Sow Super Green Chop Suey Seeds (Shungiku) in the UK 

Super green chop suey, also known as shungiku or tong hao, is a fast-growing leafy green that is both versatile and delicious. Renowned for its sweet and sour flavour, it is an essential ingredient in stir-fries, soups, salads, and garnishes. These greens are ideal for growing in UK gardens, conservatories, or even on windowsills. They are easy to cultivate and offer a nutritious and flavourful addition to your meals. 

When to Sow Super Green Chop Suey Seeds 

• Indoor Sowing: Sow seeds indoors from March to May or September to October to protect them from temperature fluctuations and frost. 
• Outdoor Sowing: Sow seeds directly outdoors between March and May, or September to October, once the frost has passed and the soil is workable. Avoid sowing during the hottest months to prevent bolting. 

Step-by-Step Guide to Sowing Super Green Chop Suey Seeds 

Indoor Sowing 

1. Prepare Containers: Fill pots, containers, or seed trays with fine-textured, well-draining compost. 
2. Sowing the Seeds: Press seeds gently into the compost and cover with a thin layer of soil. 
3. Germination Conditions: Place containers in a bright location, such as a sunny windowsill or conservatory. Maintain a temperature of 15-25°C (59-77°F). Germination typically occurs within 7 to 10 days. 
4. Watering: Keep the compost moist but not waterlogged to support healthy germination. 
5. Transplanting: Once seedlings reach 3-4 inches in height, harden them off over 7-10 days and transplant to larger pots or an outdoor growing area. Space them 10-15 cm apart for optimal growth. 

Outdoor Sowing 

1. Soil Preparation: Choose a sunny or partially shaded spot with fertile, well-drained soil. Loosen the soil with a fork and remove weeds. 
2. Sowing the Seeds: Sow seeds directly into the soil at a depth of 1/4 inch (6 mm). Cover lightly and water gently. 
3. Thinning Seedlings: Once seedlings emerge, thin them to 10-15 cm apart to provide ample space for growth. 
4. Watering: Ensure the soil remains moist during germination and early growth. 

Caring for Super Green Chop Suey Plants 

• Watering: Water regularly, especially during dry periods, to keep the soil evenly moist. Avoid overwatering as this can cause root rot. 
• Sunlight: Ensure the plants receive at least 4-6 hours of sunlight daily. 
• Feeding: Apply a light, balanced fertiliser if grown in nutrient-poor soil. However, chop suey greens generally require minimal feeding. 
• Preventing Bolting: Avoid planting in extreme heat and ensure consistent watering to prevent bolting, which can make the leaves tougher and more bitter. 

Harvesting Super Green Chop Suey Greens 

• When to Harvest: Harvest when plants reach a height of 15-20 cm. Smaller leaves are tender and sweeter, while larger leaves are better suited for cooking. 
• How to Harvest: Use scissors or a sharp knife to cut stems at the base. Harvest selectively to allow the plant to continue producing leaves. 
• Continuous Harvests: Sow seeds every 2-3 weeks during the growing season to ensure a steady supply of fresh greens. 
• Bolted Plants: If plants bolt, the leaves may become tougher but are still usable in cooked dishes. 

Common Questions About Growing Super Green Chop Suey in the UK 

• Can chop suey greens grow in containers? Yes, chop suey greens thrive in pots or window boxes. Ensure the containers have good drainage and are placed in a sunny spot. 

• How long does it take to harvest chop suey greens? Germination occurs in 7-10 days, and the plants are ready for harvesting in 30-45 days. 

• How do I prevent bolting? Avoid planting during peak summer months and water consistently to prevent stress on the plants. 

• Can I grow chop suey greens year-round? Yes, they can be grown indoors year-round on a sunny windowsill or in a greenhouse. 

By following these instructions, you can successfully grow super green chop suey greens. Whether grown indoors, outdoors, or in a greenhouse, these versatile greens will bring a unique sweet and sour flavour to your meals, making them a rewarding addition to any UK garden. 

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