I grew this Gentiana lutea from seed about a decade ago but this is only the second time that it has flowered..... I think I've finally found a spot in the garden that it will thrive in. It grows wild in the central European alpine pastures but is much less common there than it once was.
The leaves are in opposite, alternate pairs up the stem, with a cluster of flowers nestling in each.
The flowers of Jerusalem sage Phlomis fruticosa, a southern European species, are in dense whorls at intervals up the stem. In the wild it thrives in dry rocky habitats, and does well in the dry, well drained soil in my garden..