North America Non-native Plant

Jerusalem Sage

Botanical name: Phlomis

USDA symbol: PHLOM

Life cycle: perennial

Habit: subshrub

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Jerusalem Sage: A Mediterranean Beauty for Water-Wise Gardens If you’re looking to add some Mediterranean flair to your garden while keeping water bills in check, Jerusalem sage might just be your new best friend. This distinctive perennial brings architectural interest and drought tolerance to landscapes across the country, though it’s ...

Jerusalem Sage: A Mediterranean Beauty for Water-Wise Gardens

If you’re looking to add some Mediterranean flair to your garden while keeping water bills in check, Jerusalem sage might just be your new best friend. This distinctive perennial brings architectural interest and drought tolerance to landscapes across the country, though it’s worth knowing a bit about its background before you dig in.

What Exactly Is Jerusalem Sage?

Despite its common name, Jerusalem sage (Phlomis) isn’t actually a true sage, nor does it hail from Jerusalem. This perennial herb is a non-native species that originally comes from the Mediterranean region and parts of Asia. It’s managed to establish itself in the wild in several U.S. states, including California, New York, and North Dakota, where it reproduces without human help and tends to stick around.

As a forb herb, Jerusalem sage is a vascular plant that lacks significant woody tissue above ground. Think of it as having the structure of an herbaceous perennial – it dies back in winter but returns from its roots each spring, ready to put on another show.

Why Gardeners Love (and Sometimes Question) Jerusalem Sage

Jerusalem sage has quite a fan following, and it’s easy to see why. This plant brings serious architectural appeal to the garden with its distinctive whorled flowers that stack up the stems like nature’s own layer cake. The blooms typically come in shades of yellow, though some varieties offer pink or purple flowers. The silvery-gray foliage provides year-round interest and creates beautiful textural contrast with other plants.

However, since this isn’t a native plant, some gardeners prefer to stick with indigenous alternatives that better support local ecosystems. If you’re leaning toward native options, consider exploring native sages, wild bergamot, or other regional drought-tolerant perennials that offer similar structural interest.

Perfect Spots for Jerusalem Sage

This Mediterranean transplant absolutely shines in certain garden styles and situations:

  • Xeriscape and drought-tolerant gardens
  • Mediterranean-style landscapes
  • Rock gardens and gravel gardens
  • Cottage garden borders
  • Slopes and areas with poor soil

Jerusalem sage works beautifully as a structural accent plant, providing height and interesting form that anchors garden beds. It’s particularly valuable in areas where you want impact without constant watering.

Growing Jerusalem Sage Successfully

The good news? Jerusalem sage is pretty forgiving once you understand its preferences. This plant thrives in full sun and well-draining soil – think Mediterranean hillside rather than boggy meadow. It’s generally hardy in USDA zones 4-9, making it suitable for much of the country.

Planting and Care Tips

Getting Jerusalem sage established is straightforward:

  • Location: Choose a sunny spot with excellent drainage
  • Soil: Average to poor soil is fine – avoid rich, moisture-retentive soils
  • Watering: Water regularly the first year, then reduce significantly once established
  • Maintenance: Cut back spent flower stems after blooming to encourage a second flush
  • Winter care: In colder zones, leave stems standing for winter interest and cut back in early spring

Supporting Pollinators

One of Jerusalem sage’s standout qualities is its appeal to pollinators. The tubular flowers are magnets for bees, butterflies, and other beneficial insects. The extended blooming period means sustained nectar sources throughout the growing season, making it a valuable addition to pollinator gardens.

The Bottom Line

Jerusalem sage offers gardeners a low-maintenance way to add Mediterranean style and pollinator appeal to their landscapes. While it’s not native to North America, it’s not considered invasive either, making it a reasonable choice for gardeners who appreciate its unique qualities. Just remember that supporting native plants is always beneficial for local ecosystems, so consider mixing Jerusalem sage with indigenous species or exploring native alternatives that offer similar drought tolerance and structural appeal.

Whether you choose to include Jerusalem sage in your garden or opt for native alternatives, the key is creating landscapes that are both beautiful and sustainable for your local environment.

Jerusalem Sage

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Lamiales

Family

Lamiaceae Martinov - Mint family

Genus

Phlomis L. - Jerusalem sage

Species

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA