Lilly Spring Onion Seeds
£2.99 - £4.99
🌿 Mustard ‘Mibuna’ Japanese (Seeds) UH-7981C1024
£1.99 - £3.4
Delicate and fast-growing, Mustard ‘Mibuna’ Japanese produces slender, spoon-shaped leaves with a gentle mustard flavour—perfect for salads, stir-fries, soups, and Asian-inspired dishes.
Seed Quantity:
Seed Information
- Plant Type Vegetable / Leafy Green / Salad Green
- Organic No
- Growing Difficulty Easy
- Germination Time 5–10 Days
- Harvest Time 25–40 Days (baby leaves ~20 days)
- Best Season To Grow Spring to Autumn
- SunLight Needs Full Sun to Partial Shade
- Water Requirements Medium
- Height Of Maturity 20–30 CM
- None GMO Yes
- UK Native Typically No (unless specified as organic)
‘Mibuna’ is a traditional Japanese mustard green with elegant, narrow leaves and a mild, peppery flavour. Less pungent than mizuna, it’s perfect for adding a subtle mustard kick to salads or for quick wilting in stir-fries. The plants are very quick to grow and can be harvested young as a baby leaf or allowed to mature.
Mibuna thrives in cooler weather, making it excellent for spring and autumn crops or year-round growing under cover. It is highly productive, suitable for cut-and-come-again harvests, and grows beautifully in raised beds, borders, or containers.
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Type: Leafy green / Japanese mustard
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Leaf Shape: Long, narrow, spoon-shaped
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Flavour: Mild mustard, soft and tender
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Sowing Time: March–September (outdoors) or year-round under cover
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Harvest Time: From 21 days (baby leaf) to full size in 6–8 weeks
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Spacing: 10–15 cm for full heads, denser for baby leaf
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Grows Well In: Beds, borders, containers, polytunnels
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Best Uses: Salads, stir-fries, soups, noodle bowls
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Pollinator Friendly: Flowers attract bees if left to bolt
For gardeners seeking an easy, productive, and versatile Asian green, Mustard ‘Mibuna’ Japanese offers delicate flavour and quick results for any kitchen garden.
🌿 Growing & Care Guide
🌿 Mustard ‘Mibuna’ Japanese (Seeds) – Grow & Care Guide
A Mild Japanese Green for Salads & Stir-Fries
‘Mibuna’ is a traditional Japanese mustard green with slender, spear-shaped leaves and a mild, mustardy flavour. Perfect for cut-and-come-again salads, soups, or stir-fries, it grows fast and reliably in gardens or containers — ideal for cool-season sowing.
🛒 What You’ll Need:
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Mustard ‘Mibuna’ Japanese seeds
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Pots, raised beds, or open ground
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Peat-free compost or light, fertile soil
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Watering can and scissors
🌿 Growing & Care Instructions
1. Sowing (Best Mar–Sep)
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Sow direct outdoors or in containers.
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Prepare soil by raking to a fine tilth.
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Sow 1cm deep in drills 15–25cm apart or broadcast in containers.
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Water lightly after sowing.
2. Germination
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Germinates in 5–10 days in mild conditions.
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Thin to 10–15cm apart for full-size leaves, or closer for baby leaf.
3. Growing On
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Water regularly to prevent leaves becoming tough or bitter.
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Mulch to conserve moisture and suppress weeds.
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Can tolerate some shade — ideal for summer salads.
4. Harvesting
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Ready from 3–5 weeks after sowing for baby leaves.
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Cut individual leaves as needed — cut-and-come-again.
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For mature leaves, harvest whole plants or large leaves from base.
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Sow successively for a continuous supply.
5. Notes
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Excellent for spring, summer & autumn crops.
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May bolt if stressed or in extreme heat — keep well-watered.
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Tasty raw or lightly cooked.
Fast-growing, mild, and versatile — ‘Mibuna’ is a Japanese staple that belongs in every salad garden!
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