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Grow Sow Greener

Mizuna Seeds - Green

Mizuna Seeds - Green

Regular price £1.99
Regular price Sale price £1.99
Sale Sold out  Ships Tuesday 28th May 

Grow these Green Mizuna leaves in your garden, vegetable plot or in pots where space is limited and enjoy their mild mustard flavour in salads and stir-fries. Quick and easy to grow, and quick to regrow after harvest, Mizuna greens are a year-round crop that continue to gain in popularity. 

Mizuna, or Japanese Mustard, is a delicious, mild flavoured leafy green, peppery yet still sweet enough for salads. Its feather-like, light green leaves are serrated and form a large rosette from which you can harvest as a cut and come again, or take the whole head, which will quickly regrow. This fast-growing plant can be eaten at all stages of growth with a uniquely fresh and crisp flavour and a texture which lends itself perfectly to salads, stir-fries and steaming. Mizuna Green is easy to grow and handles both hot and cold temperatures, as well as pot cultivation for smaller spaces.

  • Pack size: 100 seeds
  • Time to germination: 5 - 12 days
  • When to sow: Year-round
  • When to plant out: March - October
  • Spacing: 20-30cm
  • Soil preference: Broad tolerance
  • Light preference: Full sun, part shade
  • When to harvest: Year-round

How to grow Mizuna Green from seed

Mizuna is tolerant of cold, wet conditions and should not be allowed to dry out. A full sun position with some shade in the summer months is ideal.

Start Mizuna Seeds off indoors at any time. Sow two seeds shallowly in 3cm biodegradable pots, and keep moist and at room temperature. Once a few leaves have developed, and the plant has put on some weight, making it less prone to damage from high winds, plant out, pot and all, in the garden. Alternatively, sow direct into a pot on the windowsill for a quick and easy addition to a salad or meal.

Plant directly from March by dropping two seeds where they are to grow at a depth of around 0.5 to 1cm. Thin the weaker seedling. To avoid bolting, keep your Mizuna plants well-watered, especially before drought conditions occur.

To ensure your Mizuna continues to provide, make successional sowing every couple of weeks. Leaves can be harvested from three weeks, from the bottom, leaving enough foliage to power the plant. Alternatively, harvest the whole head with a sharp knife, just above soil level, and allow the plant to regrow and recover before harvesting again.

To ensure your Mizuna grows back all season long, pick the lowest largest leaves first and avoid the central bud. Always leave enough foliage, so the plant has the means to regrow as well!

What to feed your Mizuna Plants

Mizuna doesn’t need “good” soil; however, growth is faster and larger if well fed. Amend the area before transplanting with a good mix of rotten farmyard manure and fish, blood and bone meal, as well as some volcanic rock dust and kelp powder to give them a rich, balanced and diverse diet released over the season for strong organic growth. Stronger, healthier plants are also less attractive to attacking insects.

Keeping pests away

Mizuna is largely left alone in the garden once passed the seedling stage. Starting your seeds off indoors and planting out when robust enough, makes this an incredibly easy plant to care for. When ordering Mizuna Green Seeds from Grow Sow Greener, we reccomend sowing nasturtium seeds. Growing nasturtiums a distance away from your veg will help lure aphids away while giving you delicious red flowers and peppery young leaves to add to salads.


Delivery Costs

Our shipping is broken down into two categories and are dispatched the same or next day as standard.

1. Unlimited "Small" (Garden) Seed Packets:

- Including wooden plant markers and sprouting bags.

- £1.99 - Standard Delivery 2 - 4 business days.

- £4.90 Express Delivery 1 - 3 business days

2. Everything Else - Sprouting and Microgreen Seeds, Growing Equipment, Gifts and Grow Kits:

UK Mainland.

- £3.85 - Standard Delivery (2 - 4 business days) on orders between 0 and 2kg.

- £6.50 - Next Day Courier Service on orders 0 - 4.5kg.

- £8.95 - Next Day Courier Service on orders over 4.5kg.

- Contact us for a quote on orders over 26kgs.

Ireland, Northern Ireland, Isle of Man, Guernsey and Jersey.

- £9.45 - Standard Delivery (2 - 4 business days) on orders between 0 and 2kg.

- £23.50 - Standard Delivery on orders 2kg - 26kg.

- Contact us for a quote on orders over 26kg.

The EU, Switzerland and Rest of World.

Get in touch for equipment sales to the EU and the rest of the world for a competitive shipping quote. Unfortunately we cannot yet post seeds outside the UK.

Delivery and Packaging

All products are packaged plastic free as standard. Your garden seeds are sealed for freshness inside white glassine envelopes which are a water/vapour resistant compostable paper product whilst your Microgreen and Sprouting Seeds arrive in resealable zip lock pouches made from GMO free vegetable starch which are further heat sealed to ensure these great products reach you safely!

Returns Policy

We hope you are loving your purchase however we understand that sometimes things don't go as planned and returns and refunds are necessary. Please refer to the following return and refund policies at

My product is damaged defective or you shipped me the wrong product.

We're sorry about that and understand your frustration! We would love to offer you a refund or a replacement. Please contact us at within 30 days of purchase for a full refund or replacement. 

I ordered the wrong product or simply changed my mind.

No worries, we will refund you the full amount (minus the shipping charges) provided the items are returned in new condition and in original packaging. Once received we will issue your refund however you will be responsible for return shipping costs for non defective products.

Please post to:

Grow Sow Greener

RETURNS (order number)

5 Longfields

West Alvington

Devon TQ73QG


Guaranteed to grow promise.

Should you have absolutely any problems issues or difficulties getting your seeds to germinate or problems/queries regarding our grow kits or equipment, please get in touch at and we will strive to help you out via email, call or video call.

All our seeds and products have been tested here by us however if we still cant help you get growing we will offer a free replacement.

Unfortunately, we cannot accept returns on gift cards.

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