Variety traits

St. John's wort maturity group

Hypericum L.

There are no standard maturity groups for St. John's wort as there are in grain farming. Instead, an assessment of relative earliness is used, based on the timing of the mass flowering stage.

In the reference 7 varieties crop St. John's wort, where this is mentioned in the description.

In the agronomy of Hypericum perforatum, phenological observations recording the transition of plants to the generative stage are used instead of a rigid classification. Varieties differ in their development rates, with the difference in the timing of flowering between them reaching ten or more days.

The key factor for determining harvest dates is the active flowering stage rather than technical grain maturity. Leafy stem tops are harvested strictly before fruit formation; therefore, relative earliness indicators are used by agronomists solely for planning the harvest conveyor and optimizing the operation of drying equipment.

General information about the subject — on the page Maturity group.

Sources5

Varieties of St. John's wort mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.