Hyssopus officinalis or hyssop is a shrub in the Lamiaceae or mint family native to Southern Europe, the Middle East, and the region surrounding the Caspian Sea. Due to its purported properties as an antiseptic, cough reliever, and expectorant, it has been used in traditional herbal medicine.

Hyssopus officinalis is a hardy, full-sun shrub ideal for herb gardens and borders, valued for its antiseptic and cough-relieving properties.

https://en.wikipedia.org/wiki/Hyssopus_officinalis

Hyssopus officinalis

Hyssopus officinalis 'Caeruleus' is a semi-evergreen cultivar of the Hyssopus genus, which includes herbaceous perennials and evergreen shrubs with long, fragrant leaves. This bushy, spreading plant produces clusters of tubular, two-lipped flowers arranged in spike-like inflorescences during spring and summer. It thrives in full sun on fertile, well-drained loam soil with an alkaline to neutral pH. Suitable for a variety of garden settings, including rock gardens, cottage gardens, and wildlife areas, it is hardy in the UK (H7) and can be propagated by seed or softwood cuttings in summer.

Hyssopus officinalis 'Caeruleus' is a semi-evergreen, fragrant herb with blue flowers, perfect for sunny rock gardens and wildlife-friendly borders.