One of the most famous attractions here is the flower parade, which occurs in April every year. The flower parade is all free to visit and one can enjoy beautiful floats made of colourful and bright flowers. The parade starts in Noordwijk and ends in Lisse.
Keukenhof is open daily from the end of March to May. It starts at 8 am in the morning until 7:30 in the evenings. During the blooming period, the place remains quite crowded, especially during the weekends.
Pro Tip: TO avoid the crowd, plan to visit it just after 8am or after 6pm. Also, if you visit it during weekdays, you will find the Keukenhof gardens to be extremely quiet.
The Keukenhof gardens are open 8 am to 7.30 pm every day from late March to May. The entrance tickets cost 16 euro for adults and 8 euro for children of 4–11 age.
You can also buy combi-ticket which combines the cost of bus travel to and from Amsterdam or Leiden, Schiphol and Haarlem.
You can find more information about it at their official website, here.
You can buy tickets at the entrance of the garden or at the ticket counters at the suggested bus stops.
However, I will suggest buying tickets online to avoid the crowd. You can buy single tickets or combi-tickets. Here is the link where you can buy tickets online.
How to reach Keukenhof:
Keukenhof garden is located in Lisse approximately 45 minutes outside of Amsterdam. During the tulip season and when the Keukenhof garden is open, there are special buses (with tulips poster on the outside). You can get these buses that run every 15 mins from RAI, Leiden and Schipol.
We travelled from Amsterdam. We first reached to RAI from Amsterdam central station and got bus number 852 to reach to Keukenhof gardens.