Phlomis, commonly known as Jerusalem sage, is a genus of herbaceous perennials and shrubs with attractive foliage and showy flowers. Here are some horticultural notes on this plant genus:
Climate: Most Phlomis species prefer warm and sunny climates, but some can tolerate cold and frosty conditions. They are generally drought-tolerant plants, but some species can also tolerate moisture and humidity.
Soil: Phlomis prefer well-draining soils that are not too fertile. They can grow in a range of soil types, including sandy, loamy, and clay soils.
Light: Phlomis plants require full sun to thrive, but some species can tolerate partial shade.
Watering: Once established, Phlomis plants can tolerate periods of drought, but they should be watered regularly during hot and dry weather to prevent the soil from drying out completely.
Fertilizer: Phlomis plants do not require regular fertilization, but they can benefit from an occasional application of a balanced fertilizer during the growing season.
Pruning: Most Phlomis species do not require pruning, but deadheading spent flowers can help promote continuous blooming. If the plant becomes too leggy or overgrown, it can be pruned back in late winter or early spring.
Propagation: Phlomis can be propagated from seed or by dividing established plants in the spring or fall.
Pests and diseases: Phlomis are generally pest and disease-resistant, but they can be susceptible to fungal diseases in overly moist conditions.