🥬🌱 When to Plant Asian Greens in the UK

🥬 Introduction: Asian Greens Are Fast—but Timing Prevents Bolting

Asian greens (such as pak choi, mizuna, komatsuna, tatsoi, mustard greens, and mibuna) are quick-growing, cool-season vegetables that thrive in the UK when sown at the right time. Their biggest challenge is bolting in warm weather or long days. Understanding when to plant Asian greens in the UK helps you grow tender leaves with excellent flavour rather than stressed, flowering plants.

⭐ Check Out Our Recommended Products

• Asian Greens Seed Mixes & Individual Varieties

Choose bolt-resistant varieties for summer and hardy types for autumn and winter growing.
Click here to see them

• Fine Seed Compost or Salad Grow Mix

Light, moisture-retentive compost supports fast, even germination.
Click here to see them

• Garden Fleece, Cloche, or Insect Mesh

Protects crops from cold snaps, flea beetle, and extends the growing season.
Click here to see them

📅 Best Time to Plant Asian Greens in the UK

Asian greens grow best in cool, settled conditions.

Main sowing windows:
✔ March to May
✔ July to October

With protection, some varieties can be harvested right through winter.

🌱 Spring Sowing (March–May)

✔ sow from March once soil is workable
✔ start early sowings under cover
✔ harvest from April to June

Spring crops grow quickly but can bolt if temperatures rise suddenly.

🌱 Early Summer Sowing (June)

✔ sow only in cooler or lightly shaded areas
✔ keep soil consistently moist
✔ harvest leaves young

Bolting risk is higher during warm, long days.

🌱 Late Summer and Autumn Sowing (July–October)

✔ best period for reliable crops
✔ cooler nights reduce bolting
✔ harvest from August through winter

Autumn sowings usually give the best flavour and texture.

❄️ Winter Sowing (Under Cover)

✔ sow from October to February under cover
✔ growth slows but continues in mild spells
✔ harvest baby leaves as needed

Many Asian greens tolerate frost better than lettuce.

🌡️ Soil Temperature and Growing Conditions

Asian greens grow best when:

✔ soil temperature is 8–18°C
✔ soil is fertile, light, and moisture-retentive
✔ watering is consistent

Heat or drought quickly causes bolting and bitterness.

🌍 Regional Differences Across the UK

Cold Areas (Scotland, northern England, higher ground)

✔ start sowing from April
✔ rely more on late summer and protected crops

Mild Areas (southern England, coastal regions)

✔ sow from March
✔ longer autumn and winter harvesting window

Local temperature matters more than fixed dates.

🪴 Growing Asian Greens in Containers

✔ ideal for pots, troughs, and raised beds
✔ containers at least 15–20 cm deep
✔ sow thinly and harvest regularly

Container growing allows easy shading and protection.

❄️ How Asian Greens Handle Cold and Heat

✔ tolerate light to moderate frost
✔ cool weather improves flavour
✔ heat causes rapid bolting

Asian greens perform best in spring, autumn, and winter.

🚫 Common Asian Greens Growing Mistakes

❌ sowing during hot weather
❌ letting soil dry out
❌ overcrowding plants
❌ delaying harvest

Frequent harvesting keeps plants tender and productive.

🌟 FAQs

What month do you plant Asian greens in the UK?

Asian greens are usually sown from March to May and July to October.

Can Asian greens be grown all year round?

Yes. With protection, many varieties can be harvested throughout winter.

How long do Asian greens take to grow?

Typically 3–6 weeks from sowing to harvest.

Do Asian greens need full sun?

Full sun in cool weather, light shade in warm conditions.

Are Asian greens frost-hardy?

Many varieties tolerate frost, especially when young.