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Variety profile · Mustard greens

Purple Frills: discover its flavour and how to grow it

Purple Frills combines strongly divided leaves with deep purple colour. A small amount therefore stands out in a bowl. Choose Purple Frills when leaf colour and fine structure both matter. It is an accent crop, not heading lettuce.

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AI illustration of Purple Frills
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Botanical name
Brassica juncea
Botanical group
Brassica juncea
Use
Pungent young leaves
Growing choice
Cutting crop or loose-leaf plants

This growing advice helps you choose. Your variety, growth stage, weather and conditions in your space determine the actual timing.

A good start

Sowing under cover and raising seedlings

Start under cover in cool conditions or sow directly · Mustard greens

July–August for a simple autumn routeStart briefly under cover in modules; provide light and avoid heat.

Germination and temperature
Raise in cool to mild conditions; avoid severe cold, heat and drying out.
After emergence
Keep emerged lettuce bright and well ventilated; prevent high greenhouse temperatures and drying out.
Pricking out and potting on
Sow in modules or prick out manageable seedlings into individual cells. Keep the root ball intact when planting out.
Hardening off and planting out
Gradually acclimatise indoor-raised plants to sun, wind and outdoor temperatures; shelter them again on cold nights. Plant out sturdy young plants; keep the growing point clear and protect against slugs and snails.

These leafy crops can bolt under stress or unsuitable day length. Use early sowing only with an appropriate cultivar.

Sources and use

RHS · sla ↗Britse teeltrichtlijn voor een gematigd klimaat; de genoemde perioden zijn richtlijnen voor Nederland en Vlaanderen.

De Bolster · Bladmosterd Golden Frills ↗Nederlandse producent of teeltbron; de rasinstructie blijft leidend.

Feggies · Bladmosterd 'Golden Frills' Biologisch ↗Nederlandse producent of teeltbron; de rasinstructie blijft leidend.

Guideline periods for the Netherlands and Flanders. Check the variety, available light, soil and measured temperatures. Greenhouse heating does not guarantee enough winter light.

Compare how to raise other vegetables →

What makes Purple Frills different?

Fruit shape
Finely divided leaves
Main colour
Deep purple
Flavour
The product source describes pungent leaves. Purple colour does not indicate more or less heat than Golden Frills.

The source context and any limitations are in the background information at the bottom.

Compare with another variety
From garden to plate

Flavour and kitchen

The product source describes pungent leaves. Purple colour does not indicate more or less heat than Golden Frills.

Add individual young leaves to salad. Larger leaves can be fried briefly and paired with milder vegetables.

Why choose it? Choose Purple Frills when leaf colour and fine structure both matter. It is an accent crop, not heading lettuce.

How it could look in your garden

How to grow mustard greens

The options below belong to the plant. From these, choose the method that suits your variety's growth habit.

AI illustration of bladmosterd in een koel oogstbed
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Mustard leaves in a cool harvesting bed

Sow for a cool growing window; allow space for picking; harvest outer leaves and retain the heart.

  1. Sow for a cool growing window.
  2. Allow space for leaf picking.
  3. Harvest outer leaves and retain the centre.

For loose leaf plants or cutting rows during a cool growing window.

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AI illustration of pittig blad uit een saladebak
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Spicy leaves from a salad container

Fill a free-draining container; sow a named selection; keep soil moist and cut young leaves.

  1. Fill a free-draining container.
  2. Sow a named selection.
  3. Keep soil moist and cut young leaves.

For small, spicy portions beside other salad crops.

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Why grow Purple Frills?

Purple Frills combines strongly divided leaves with deep purple colour. A small amount therefore stands out in a bowl.

Choose Purple Frills when leaf colour and fine structure both matter. It is an accent crop, not heading lettuce.

How this choice tastes

The product source describes pungent leaves. Purple colour does not indicate more or less heat than Golden Frills.

From harvest to kitchen

Add individual young leaves to salad. Larger leaves can be fried briefly and paired with milder vegetables.

What needs attention when growing

Sow for a cool growing window and avoid a drying container. Allow spacing between plants left to grow longer.

Cut young leaves for raw use. With later pickings, test a small amount for desired heat and texture first.

A pungent leafy vegetable

Mustard greens here means Brassica juncea, with selections such as Golden Frills and Purple Frills. Leaf shape and colour offer an initial guide; pungency belongs to the crop and the described offering. Expect loose leaves with their own markings. This is a different choice from sowing yellow mustard for ground cover or growing mustard cress on a tray.

Making use of a cool period

The producer describes Golden Frills as particularly suited to cool growing conditions. A sunny leaf bed or container can serve this purpose. Warm summer growing makes bolting more likely. Place different leaf colours side by side for comparison, but keep cultivar labels visible. Without labels, a beautiful colour mix is difficult to trace back to a seed choice later.

First choose between baby leaves and a full plant

Dense sowing produces young cutting leaves; wider thinning gives individual plants room to grow on. Choose one of these aims for the first trial. Sow thinly and keep the surface moist. Follow the packet for the chosen cultivar and system, because a cutting row and a full-sized plant need different spacing.

An accessible salad container

Prepare a level, well-drained bed or use a planter that lets water escape. Label each sowing separately and leave part of the edge clear for watering. This is especially useful for finely divided foliage: you will not need to keep reaching through the plants to get to the soil.

Observe development and feeding damage

Check young leaves regularly and watch for a flower stalk. Delay the next sowing or move it to a cooler season if the crop bolts very quickly. In a container, remember the difference between dry compost and warm air: extra watering alone does not automatically change an unsuitable growing time.

Leaf bed or salad container

In a cool bed, you can compare short rows of different selections. A salad container makes small, fresh portions easy to reach. Use that proximity to your advantage: taste at different ages and record when the pungency is pleasant. A container does not require a new cultivar; the same selection can be followed in both growing systems.

Pick a little and reassess

Take young leaves for a first harvest and leave enough plant if you want to observe further development. For a cutting crop, a small test cut is useful before harvesting everything. Lay young and older leaves out separately. This lets you see the effect of harvest stage without inventing an unproven flavour difference between cultivars.

Using pungency in moderation

Add a small amount of mustard greens to a salad or cook briefly in a hot dish. Combine a first portion with mild leaves so the mustard note does not dominate. Golden Frills has fine green leaves; Purple Frills adds purple colour. Colour choice and the desired amount of heat are two separate decisions.

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What you need

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More background, sources and image information

SeedSteps editorial team · updated on 11 October 2026. The AI images illustrate species and practical growing situations; they do not prove an exact cultivar, observations from your own garden or yield.

Britse gewasadviezen worden gecombineerd met Nederlandse en Vlaamse informatie waar beschikbaar. Amerikaanse Extension-bronnen ondersteunen plantprincipes en herkenning; hun kalenderdata, lokale plaagdruk, bestrijdingsmiddelen en mestdoseringen worden niet rechtstreeks op Nederland of Vlaanderen toegepast. Vorst, bodemwarmte, standplaats en expliciete rasinformatie blijven de lokale controle. Commerciële bronnen onderbouwen uitsluitend benoemde ras- en plantkenmerken; zij zijn geen affiliate-aanbeveling.

  1. Bladmosterd ‘Purple Frills’ BiologischFeggies · accessed 2026-10-11
  2. Bladmosterd 'Golden Frills' BiologischFeggies · accessed 2026-10-11
  3. Bruine mosterd Green in snow uit China zaden biologischFeggies · accessed 2026-10-11
  4. Mosterd rood Chinese Red Giant zaden biologischFeggies · accessed 2026-10-11
  5. Bladmosterd Golden FrillsDe Bolster · accessed 2026-10-11

Supporting evidence by chapter: Why grow Purple Frills?: Feggies. How this choice tastes: Feggies. From harvest to kitchen: Feggies. What needs attention when growing: Feggies. A pungent leafy vegetable: Feggies, De Bolster, Feggies. Making use of a cool period: Feggies, De Bolster. First choose between baby leaves and a full plant: Feggies, De Bolster. An accessible salad container: Feggies, De Bolster. Observe development and feeding damage: Feggies, De Bolster. Leaf bed or salad container: Feggies, De Bolster, Feggies. Pick a little and reassess: Feggies, De Bolster. Using pungency in moderation: Feggies, De Bolster, Feggies.

Fruit shape: Finely divided leaves Beschrijving van de genoemde rasbron; geen eigen tuinwaarneming. Feggies

Main colour: Deep purple Beschrijving van de genoemde rasbron; geen eigen tuinwaarneming. Feggies

Flavour: The product source describes pungent leaves. Purple colour does not indicate more or less heat than Golden Frills. Smaakbeschrijving van de rasbron, vertaald naar eigen woorden. Rijpheid, teelt en bereiding beïnvloeden de smaak. Feggies