This grower is fairly sure of this plant identification.
Grown from cuttings. Still small but growing well. Fresh cuttings are also available and very easy to propagate.
Rosmarinus officinalis (Rosemary). This is a perennial subshrub which has aromatic foliage. It is upright with strong woody branches, and leaves which are narrow and deep green. The flowers are lavender blue. The oil from the leaves is used medicinally.
They will prefer a sunny site with poor, well drained soil.
Culinary, border, fragrance, medicinal, foliage, banks, hedging, specimen, conservatory. Spring/Summer interest. Suitable for coastal conditions.