Always the first bulbous plant to bloom, and when it's still wintertime. Holland is of course known for its tulips but there are many others plants like Galanthus that do equally well. In fact tulips gets worse over time because they make smaller bulbs which only produce leafs. Bulbs like Galanthus or Muscari do even better and bloom every year guaranteed. If you're ever in Holland and want to buy bulbs, get the ones I mention here (besides tulips) because you'll be enjoying them for a long time.