Daffodils for naturalizing

At the garden of Hoegaarden in Belgium many of my daffodils were planted in the last years along with many that there already were.
The headgardener said that if he didn’t have the colors of the  bulbs his park would not be worth coming to in spring.
This jonquilla ‘Simplex’ was planted under a big tree  in spring 4 years ago . from pots
Other daffodils we saw were ‘February Gold’,  ‘Jenny’, ‘Centannees’, obvallaris, ‘Golden Harvest’ and many others.
Also a lot of miscelaneous bulbs were flowering under the trees!
 
Best regards, Hein Meeuwissen, Voorhout, Holland