Img 3381

Construction days

Construction days

On Saturday April 25, 2020 the Flower Parade of the Bollenstreek will travel from Noordwijk to Haarlem. In the three days before the parade the floats will be ‘pierced’, that is to say, covered and decorated with bulb flowers. Many hundreds of volunteers will be busy for days with the piercing or pinning of thousands of hyacinths, tulips and daffodils to the floats. This unique event can be admired at the hall of DeLeeuw Flowerbulbs in Sassenheim.


Hall plan

The construction days are open for public on Wednesday 22, Thursday 23 or Friday 24 April at DeLeeuw Flowerbulbs in Sassenheim. This flower bulb company has been hosting the construction days for years. Please note that you are welcome to visit the construction days, but you can't just walk in. You can buy an admission ticket at the counter and if you want to learn all the fun facts, you can even book a tour.


Wednesday, April 22, 2019 9 a.m. - 10 p.m. (9 p.m. last entry)
Thursday, April 23, 2019 9 a.m. - 10 p.m. (9 p.m. last entry)
Friday April 24, 2019 9 a.m. - 1 p.m. (12 a.m. last entry)


Adults € 6.00
Children from 6 to 12 years € 2.00
Children up to 6 years Free

Group visits

Groups of 20 people or more are required to book before visiting the construction days. So if you come with a group or want a tour, you must register in advance via:

Give a preferred time, the desired language (NL, FR, ENG, DU) and how many people the group consists of and we will let you know if that fits in with the planning. Tours start at the hour and start with a participation of 20 people.

Steekwerk 3


Getting here

Address and accessibility
DeLeeuw Flowerbulbs
Rijksstraatweg 52
2171 AM Sassenheim (A44 exit No. 4).

Various parking spaces have been set up in the immediate vicinity of the Deleeuw Flowerbulbs. Use navigation up to the location and follow the directions of the traffic controllers from there.

Public transport
The location is also accessible by public transport. Check for the current public transport planning, stops and walking routes.

Disabled persons
Those who are in possession of a disabled parking card can, on presentation, be assigned a special place by the traffic controllers. To our regret, no disabled toilets are available at the construction days location.

Coffee counter
There is a cozy coffee counter in the hall. Here you can order a delicious freshly brewed cup of coffee or tea, possibly with a filled cake or delicious slice of cake. Soft drinks, soup, sandwiches, pastries and various meals are also available. 

Plattegrond _1

Plattegrond _2


  • Vrienden van het Bloemencorso
  • Gemeentenoordwijk Logo 307 X 192
  • 21.gemeente -teylingen
  • 19.gemeente -lisse
  • 36.gemeente -hillegom
  • 9.gemeente -haarlem
  • 39.keukenhof
  • De Leeuw
  • Hotel Van Der Valk Sassenheim
  • Logo 2011
  • Logo Flynth Zonder Onderschrift
  • Omroep Max
  • GRAIN Logo Pms
  • Huurmaat Logo
  • Image001
  • BQ Support Rgb
  • Slot Logo Transport Log4ebjpg
  • LOGO Vandooren
  • Smd Brandstoffen Logo
  • Agrotechniek
  • Ruigrok Flowerbulbs
  • Queen
  • Linnaeshof
  • Koninklijke Beuk Gouden Letters Oranje Stip Blauwe Achtergrond Jpeg
  • China
  • Full Colour
  • Logo Rent A Bike Van Dam Oranje Page 001
  • Logo Elopak For Webviewing
  • Logo2015 Payoffnl Zw