Property:Has first grown

The earliest year a cited source records cannabis grown in a growing region, growing area or appellation. Set by the first_grown field of {{Infobox Growing Region}}, {{Infobox Growing Area}} and {{Infobox Appellation}}, and only on a page whose Property:Has growing status is Historical or No longer grown. Its pair is Property:Has last grown.

The field takes a four-digit year followed by its citation. Only the year is stored. A value that does not start with a four-digit year (such as "the 1830s") is shown on the page but not stored.

Date