Jerusalem Sage Plant Care

Jerusalem Sage (Phlomis fruticosa) belongs to the Lamiaceae family within the Phlomis genus. Jerusalem Sage is native to Albania, Croatia, Cyprus, Greece, Italy, Montenegro and Turkey. Jerusalem Sage is also known as Shrubby Phlomis.

Jerusalem Sage displays an upright, bushy shrub growth habit, reaching up to 3 inches tall with a spread of approximately 2 inches. Jerusalem Sage produces whorls of hooded yellow or purple flowers.

Leaf size: approximately 6 inches.

Phlomis fruticosa requires watering every 7–14 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Jerusalem Sage thrives in full sun to part shade light conditions. The optimal light range is 200–2000 lux. Avoid placing Jerusalem Sage in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Phlomis fruticosa grows best at temperatures between 50°F and 80°F. Jerusalem Sage prefers humidity levels of 40–70%.

Well-draining sandy loam with added organic matter. Good drainage is essential for Jerusalem Sage to prevent waterlogging, which leads to root rot and fungal issues.

Repot every 2-3 years in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

Jerusalem Sage can be propagated through seeds, division of root ball, softwood cuttings.

Jerusalem Sage is susceptible to aphids, spider mites, whiteflies. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Jerusalem Sage grows outdoors in USDA Zone 6a – 9b. Native to Albania, Croatia, Cyprus, Greece, Italy, Montenegro and Turkey, Jerusalem Sage is adapted to warm climates. In cooler regions, grow Jerusalem Sage as a houseplant or bring it indoors before the first frost.