The sage of Jerusalem
Close relatives of sage and lavender the phlomis are rustic shrubs of Mediterranean origin; about a dozen species are known. These species produce large well-branched shrubs, with flexible ramifications, which bear large oval leaves, green-gray in color, very similar to those of sage, with which, if not in bloom, it can be exchanged at first sight; the leaves of phlomis however they do not give off any aroma: they are in fact devoid of any type of perfume. In spring it produces numerous flowers, very particular and beautiful, they are in fact gathered in circular inflorescences at the axil of the leaves; therefore the apical branches are adorned with small wreaths of flowers at each node. The flowers of phlomis they can be yellow or light pink.
How to grow it
Jerusalem sage shrubs are rustic and hardy; they should be planted in a sunny place in the garden, as they fear shade and need at least 5-6 hours a day of direct sunlight; they do not require particular soil, even if they fear heavy and very humid soils, especially in winter. Before planting the Phlomis, therefore, we work the soil well by adding sand or pumice stone if necessary to increase drainage. We also enrich the soil with little manure, or with slow release granular fertilizer; every 6-8 months it will be necessary to add other granular fertilizer around the plant, without exceeding in quantity, since these plants also grow well in poor and stony soils.