Common Rue, Garden Rue, Herb of Grace, Herbygrass 'Jackman's Blue'

Ruta graveolens

Family: Rutaceae (roo-TAY-see-ee) (Info)
Genus: Ruta (ROO-tuh) (Info)
Species: graveolens (grav-ee-OH-lens) (Info)
Cultivar: Jackman's Blue



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


18-24 in. (45-60 cm)


15-18 in. (38-45 cm)


USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

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)

Sun Exposure:

Full Sun


Parts of plant are poisonous if ingested

Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Bright Yellow

Bloom Time:

Mid Summer




Provides winter interest

Other details:

May be a noxious weed or invasive

Soil pH requirements:

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

From herbaceous stem cuttings

From softwood cuttings

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed


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

Clayton, California

Maidsville, West Virginia

Gardeners' Notes:


On Aug 25, 2006, saya from Heerlen
Netherlands (Zone 8b) wrote:

The foliage still looks pretty during winter and even looks more blue. 'Jackman's Blue' can be best propagated from tip cuttings taken in autumn. If sown, Rue can get untamed wild.
Don't plant it near to your path ways or where it is easy to touch.
Some people are allergic to rue and get a skin rash from handling the plant. Especially on hot days, just brushing against rue can cause water blisters and blotchy skin, much like poison ivy. For some people, ingestion causes increased photosensitivity and can lead to severe sunburn. Ingesting large amounts of rue can cause violent stomach pain, vomiting, and convulsions. Pregnant women should never ingest rue.


On Mar 3, 2005, mcgrawts from Miami, FL wrote:

Rue is also said to be a larval host plant for the Giant Swallowtail Butterfly.