Chattels used in connection with real estate are of three classes: First, those which are manifestly furniture, as distinguished from improvements and not peculiarly fitted to the property with which they are used; these always remain personalty ...Second, those which are so annexed to the property that they cannot be removed without material injury to the real estate or to themselves; these are realty, even in the face of an expressed intention that they should be considered personalty.... Third, those which, although physically connected with the real estate, are so affixed as to be removable without destroying or materially injuring the chattels themselves, or the property to which they are annexed; these become part of the realty or remain personalty, depending upon the intention of the parties at the time of the annexation; in this class fall such chattels as boilers and machinery affixed for the use of an owner or tenant, but readily removable.
The green house creates the necessary environment for raising plants and will be affixed to the property until it is worn out, the nursery business fails, or Custer and his wife no longer occupy the property.... [T]he green house is realty and taxable as real estate.
In assessment cases, the assessor tends to win because the value of the property is increased by less-than-permanent attachment that are integral to the property. In a sales transaction, it is possible that the portable greenhouse would not be included. The same would be true if the nursery owner had been merely a tenant on the land - probably would have been a trade fixture only.