Interesting...

While it is true that I originally used the same procedure as you (putting down parched red tulips, installing DLC, putting down more parched red tulips, installing DLC), I'm getting the same result by deleting the DLC and doing it the new way (putting down parched red tulips, parched white tulips, and parched yellow tulips, then installing DLC all at once).

It would seem as though I can do anything I want except open those darn dressers.

I really need some help.