PlantFiles is getting a new look! Just in time for spring, we're rolling out a new look for the best online plants database. It will also work with your smart phones and mobile devices, so now you can take it with you on garden center visits or botanical garden tours. Questions or comments? Please post them here.
Family: Lamiaceae (lay-mee-AY-see-ee) (Info)
Genus: Sideritis (sid-er-RY--tiss) (Info)
Species: syriaca (seer-ee-AK-uh) (Info)



Tropicals and Tender Perennials


24-36 in. (60-90 cm)


18-24 in. (45-60 cm)


USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Sun to Partial Shade

Light Shade


Unknown - Tell us

Bloom Color:

Bright Yellow

Bloom Time:

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall


Grown for foliage




Other details:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

This plant is resistant to deer

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us


This plant has been said to grow in the following regions:

Ceres, California

Hercules, California

Redwood City, California

Richmond, California

Portland, Oregon

Conroe, Texas

show all

Gardeners' Notes:


On Sep 9, 2012, Juliaalexander from London
United Kingdom wrote:

The native habitat of Sideritis Syriaca is on fast-draining magnesium-limestones and marble-rubble, on south-facing slopes and collapsed plateaux, at heights of 900 to 2000 metres in the Greek mountains, including the Parnonas and Taygettos ranges (Peloponnesos), up to the Gramos and the Pindos ranges in north west Greece (and, for all I know, on the other side of the Alabanian border too). All these heights are subject to year-round high winds and low night temperatures, with frosts and occasional snow (heavy in the north) at any time from November through March, and to strong sunlight for much of the year. In ideal locations, it grows to a height of about 12 inches, though around 8 inches or less is more usual. The flowers, leaves and tough, woody stems are all used for tea. They have t... read more


On Oct 31, 2005, renwings from Sultan, WA (Zone 8a) wrote:

A.K.A. Ironwort
traditional greek tea brewed from dried leaves used to treat common cold.
In the wild, plants thrive on sunny, rocky, dry hillsides.