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SeedStepsYour vegetable garden, one step at a time.My gardenHollandse middelvroege is a named forcing chicory selection for forcing with or without covering soil. Growing consists of a root stage and a forcing stage. Choose this variety if you want to follow the two growing stages and try forcing. A short forcing period is not the total growing time.
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.
This growing advice helps you choose. Your variety, growth stage, weather and conditions in your space determine the actual timing.
Sow directly · Chicory
May–June, depending on type and cultivarSow directly for the root crop. Force suitable chicory roots separately in darkness only later.
Sow directly for root production. Forcing chicory in darkness later is a separate stage; seedlings are raised in light.
RHS · witlof en cichorei ↗Britse teeltrichtlijn voor een gematigd klimaat; de genoemde perioden zijn richtlijnen voor Nederland en Vlaanderen.
De Bolster · Witlof telen: onze tips ↗Nederlandse producent of teeltbron; de rasinstructie blijft leidend.
De Bolster · Witlof: trekken met en zonder dekgrond ↗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.
Chicory bitterness is general crop information. The source establishes no distinctive aroma for Hollandse middelvroege.
This flavour description applies to the crop; a separate taste test for this variety is not supported by evidence.Use the pale heads raw as salad leaves, or cook whole or halved heads. Healthy heads provide compact portions.
Why choose it? Choose this variety if you want to follow the two growing stages and try forcing. A short forcing period is not the total growing time.
The options below belong to the plant. From these, choose the method that suits your variety's growth habit.
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.
For a variety that can be forced without covering soil, an opaque cover keeps the new head pale. The root crown remains intact.
For varieties and roots explicitly suitable for forcing without covering soil.
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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.
Suitable varieties form the chicon beneath covering soil. This needs a deep container and correct variety instructions.
For deliberate traditional cultivation with a suitable variety and sufficient container depth.
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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.
Stand the roots upright and fill around them up to the crowns. A completely dark place helps the new heads stay pale.
View your supplies →Hollandse middelvroege is a named forcing chicory selection for forcing with or without covering soil. Growing consists of a root stage and a forcing stage.
Choose this variety if you want to follow the two growing stages and try forcing. A short forcing period is not the total growing time.
Chicory bitterness is general crop information. The source establishes no distinctive aroma for Hollandse middelvroege.
Use the pale heads raw as salad leaves, or cook whole or halved heads. Healthy heads provide compact portions.
Grow roots in soil first, then force suitable roots in darkness. Follow product advice for the covering-soil method.
Harvest closed heads after forcing. Assess compactness and colour; harvesting roots does not yet give ready-to-eat chicons.
Hollandse middelvroege: Hollandse middelvroege is a named forcing chicory selection for forcing with or without covering soil. Growing consists of a root stage and a forcing stage. Use the pale heads raw as salad leaves, or cook whole or halved heads. Healthy heads provide compact portions.
Chicory bitterness is general crop information. The source establishes no distinctive aroma for Hollandse middelvroege.
Brussels forcing chicory: This offering describes Brussels chicory without a further variety name. Compact pale heads follow separate root growing and forcing. Use firm leaves as little salad cups or cook the whole head. The compact harvested part is easy to divide into portions.
The source describes a delicate flavour; bitterness is part of chicory as a crop. The listing does not establish a separate cultivar with its own aroma.
Green summer leaves feed the root. The familiar white head is new forced growth with light excluded. Sow suitable forcing chicory; random chicory or radicchio does not automatically give the same compact head in a dark bucket.
Sow directly in a fine, deeply loosened bed. May is a useful starting point for many Dutch forcing-chicory crops; follow variety and weather advice. Direct sowing avoids disturbing taproots. Keep the surface moist until plants root sufficiently.
Thin promptly following variety guidance so plants do not remain a dense grass-like edge. For general outdoor growing, De Bolster gives about 12 cm within rows and 35 cm between rows. Guidelines, not guarantees for every variety or soil.
Weed shallowly and maintain even moisture during drought. Do not apply nitrogen on a guess; excessive weak leaf growth is not the aim. Let healthy leaves function. If plants fail, check drainage and root quality too: rotten roots are unsuitable for forcing later.
In autumn, loosen soil widely beside the plant. Lift the taproot as intact as possible and select firm, healthy roots. Trim leaves above the crown, leaving the growing point intact. Follow dormancy or cold-storage advice before forcing.
Force a small batch and store other roots cool following appropriate instructions. Stand selected roots upright, not flat, in slightly moist substrate. Choose covering soil or dark covering by variety; simply upturning a bucket is no variety choice.
For many forcing crops, around 10–15 °C is useful. Warm living rooms can produce fast, loose growth. Measure rather than guess and follow variety or supplier advice. Light greens growth and may increase bitterness; covering must be truly opaque.
Keep substrate slightly moist without persistent mud around roots. Inspect the batch briefly for rot and remove affected roots. Poor roots, damaged growing points or wrong temperatures produce loose or failed heads. Extra feed cannot restore a broken crown.
Harvest once heads are compact and usable. Forcing without covering soil commonly takes a few weeks; temperature and root reserves determine timing. Cut or break at the crown and store cool and dark. Do not count a second forcing as an equal full harvest.
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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.
Supporting evidence by chapter: Why grow Hollandse middelvroege?: Feggies, Royal Horticultural Society. How this choice tastes: Feggies, Royal Horticultural Society. From harvest to kitchen: Feggies, Royal Horticultural Society. What needs attention when growing: Feggies, Royal Horticultural Society. Choose by flavour, shape and use: Feggies, Royal Horticultural Society, Feggies. A leaf bed is not yet a forced chicon: Royal Horticultural Society, Utah State University Extension, De Bolster, De Bolster. Start outdoors with a straight taproot: Royal Horticultural Society, Utah State University Extension, De Bolster, De Bolster. Thick roots need space: Royal Horticultural Society, Utah State University Extension, De Bolster, De Bolster. Let the root build reserves steadily: Royal Horticultural Society, Utah State University Extension, De Bolster, De Bolster. Lift the root with the crown intact: Royal Horticultural Society, Utah State University Extension, De Bolster, De Bolster. Give roots their own dark growing space: Royal Horticultural Society, Utah State University Extension, De Bolster, De Bolster. Darkness and moderate warmth keep growth manageable: Royal Horticultural Society, Utah State University Extension, De Bolster, De Bolster. Check without flooding the container: Royal Horticultural Society, Utah State University Extension, De Bolster, De Bolster. A closed chicon is the reward: Royal Horticultural Society, Utah State University Extension, De Bolster, De Bolster.