Echinops Species, Small Globe Thistle, Southern Globethistle

Echinopsritro

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Echinops (EK-in-ops)
Species
ritro (RIH-tro)
Synonym
Echinops bannaticus
Echinops exaltatus
Sun Exposure
Sun to Partial Shade
Foliage
Grown for foliage
Herbaceous
This plant is resistant to deer
Height
24-36 in. (60-90 cm)
Spacing
15-18 in. (38-45 cm)
Hardiness
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
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)
Danger
N/A
Bloom Color
Dark Blue
Bloom Time
Late Summer/Early Fall
Other Details
Category
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color
Bronze
Blue-Green
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
Patent Information
Non-patented
Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
From seed; sow indoors before last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Bag seedheads to capture ripening seed
Allow seedheads to dry on plants; remove and collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Centre, Alabama

San Francisco, California

San Marcos, California

Englewood, Colorado

Wilmington, Delaware(2 reports)

Jacksonville, Florida

Cordele, Georgia

Chicago, Illinois

La Grange Park, Illinois

Mount Prospect, Illinois

Bloomington, Indiana

Jeffersonville, Indiana

Warren, Indiana

Inwood, Iowa

Barbourville, Kentucky

Frankfort, Kentucky

Salvisa, Kentucky

Freedom, Maine

Litchfield, Maine

Westford, Massachusetts

Constantine, Michigan

Dearborn Heights, Michigan

Grand Rapids, Michigan

Lansing, Michigan

Ludington, Michigan

Mason, Michigan

Scottville, Michigan

Tecumseh, Michigan

Traverse City, Michigan

Minneapolis, Minnesota

Morris, Minnesota

Saint Paul, Minnesota

Florence, Mississippi

Saint Louis, Missouri

Dover, New Hampshire

Manchester, New Hampshire

Plainfield, New Jersey

Albuquerque, New Mexico

Elephant Butte, New Mexico

Buffalo, New York

Elmira, New York

North Bangor, New York

Wallkill, New York

West Sayville, New York

Belfield, North Dakota

Hamilton, Ohio

Lewis Center, Ohio

Newark, Ohio

Newalla, Oklahoma

Chiloquin, Oregon

Eugene, Oregon

Portland, Oregon

Johnsonburg, Pennsylvania

Wilkes Barre, Pennsylvania(2 reports)

North Scituate, Rhode Island

North Augusta, South Carolina

Franklin, Tennessee

Vonore, Tennessee

Essex Junction, Vermont

Ashland, Virginia

Linden, Virginia

Nellysford, Virginia

Roanoke, Virginia

Olympia, Washington

Port Townsend, Washington(2 reports)

Seattle, Washington

New Milton, West Virginia

Menasha, Wisconsin

show all

Featured Videos

Gardener's Notes:

11
positives
8
neutrals
4
negatives
Sort By:
Sort By:
J
J
San Francisco, CA | June 2019 | positive

I think these are GREAT garden plants. Mine are divisions from three 4" pots. The plants were in the ground two years. They did well and ...Read More

R
Ashland, VA | September 2018 | neutral

I am in zone 7. Ritro Echinops is one of my favorite garden flowers but it does not do well for me. Invasive? Hardly! I wish. I have ...Read More

D
West Sayville, NY | August 2016 | negative

I find this plant incredibly invasive. Because of the spines on the plant you can't pull them with your hands unless you're wearing leath...Read More

F
Saint Louis, MO | October 2015 | neutral

I started my Echinops from seed in January 2015. They seemed healthy, and I transplanted them at the back of a rock bed in a sunny spot (...Read More

W
W
| July 2012 | neutral

The jury is still out on this plant for me. I live in UK & my mum has a huge 6' x 3' wide growing. I was so envious I purchased a pack of...Read More

J
NORTH BANGOR, NY | July 2012 | neutral

I enjoy the flowers that have been there for years but never knew what it was. It grows quite well in my yard.

D
Saskatoon, SK (Zone 3a) | June 2012 | positive

Outstanding tall perennial and not invasive in my zone. Mine actually went dormant for a year and I thought they'd died. But they came ...Read More

J
J
Salem, VA | March 2012 | negative

Incredibly invasive in my zone 7 garden; it reseeds everywhere and seedlings appear throughout the spring and summer. The roots are very...Read More

7
| July 2010 | positive

I've had this plant since 2001 in Muskoka, Ontario (zone 4). I planted it in a garden that runs along a cedar hedge. I allow the hedge to...Read More

B
B
Ann Arbor, MI | June 2010 | negative

Echinops reseeds prolifically. Helping a sister in her 4 year old bed dozens were pulled from every hole in the barrier fabric not packe...Read More

L
Portland, OR (Zone 8b) | March 2010 | neutral

I sowed these from seed last spring, delicately called "Platinum Blue Flower" by Seed Savers Exchange. I was excited by the audacity of t...Read More

J
J
| August 2007 | positive

I put one of these in my original front flowerbed in 2003. I live in Zone 3a with fairly heavy clay soil. This year the monster is as tal...Read More

B
Albuquerque, NM (Zone 7a) | July 2007 | positive

I'm really enjoying this plant. I started it from seed three or four years ago and now have two big, healthy, blooming plants (all I rea...Read More

L
Jeffersonville, IN (Zone 6a) | September 2006 | positive

This is a wonderful texture plant. The foliage and flowers are both striking.
If starting seed in a seed-tray, choose one with rea...Read More

G
(Zone 5a) | January 2006 | positive

I love these flowers. The plant itself looks wicked, and most people mistake them for a vicious weed. When the flower is forming, it re...Read More

B
Appleton, WI (Zone 5a) | December 2005 | positive

This plant is something different, sort of a texture plant. The leaves to flower ratio is probably high to grow just for flowers.

F
Manchester, NH | August 2005 | neutral

I planted it last year and haven't seen a bloom yet so we'll see this year. We're entering September and I'm still waiting!

S
New Milton, WV (Zone 6a) | July 2005 | neutral

A purple version of this plant grows wild in my area. It appears to grow under various conditions, Full Sun, Part Sun, & it seems to tole...Read More

L
Ithaca, NY (Zone 5b) | November 2004 | neutral

As a dried flower for use in arrangements, I love this flower, however, it will not grow for me - anywhere it seems - in my gardens. It's...Read More

H
Lansing, MI | July 2004 | positive

This plant took 2 years to bloom for me. I love it. I have 4 of them. And from what I have been reading, I will have more(to share).

J
Scottville, MI (Zone 4b) | July 2004 | positive

One of my favorites for the back row! Fills in nicely, and I love those prickly blue balls in July. They actually are softer than they ...Read More

S
Wilmington, DE (Zone 7b) | July 2004 | negative

This is an unusual color and structure, so it's a conversation piece. I loved it the first year. But, thereafter it became a royal pain...Read More

K
K
Oostburg, WI (Zone 5b) | May 2004 | positive

I enjoy this plant very much. New gardeners love the blue globes and this one sends off enough babies that I share every spring. It gets ...Read More

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