Tragopogon Species, Common Salsify, Jerusalem Star, Oysterplant, Purple Goatsbeard

Tragopogonporrifolius

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Tragopogon (tra-go-POH-gon)
Species
porrifolius (po-ree-FOH-lee-us)
Synonym
Sun Exposure
Sun to Partial Shade
Foliage
Grown for foliage
Height
24-36 in. (60-90 cm)
Spacing
12-15 in. (30-38 cm)
Hardiness
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)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Danger
N/A
Bloom Color
Lavender
Medium Purple
Bloom Time
Mid Spring
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Other Details
Category
Biennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Grow outdoors year-round in hardiness zone
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
From seed; direct sow outdoors in fall
Direct sow as soon as the ground can be worked
From seed; direct sow after last frost
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Seed does not store well; sow as soon as possible
Regional

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

Arroyo Grande, California

Claremont, California

Folsom, California

Hayward, California

Imperial Beach, California

Marysville, California

Merced, California

Oakland, California

Vacaville, California(2 reports)

Blue Springs, Missouri

Neptune, New Jersey

Tonawanda, New York

Norman, Oklahoma

Ashland, Oregon

Greencastle, Pennsylvania

Temple, Texas

Wild Rose, Wisconsin

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Gardener's Notes:

4
positives
1
neutral
0
negative
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R
Marysville, CA | April 2019 | positive

I always wondered what these were growing in my backyard ... now I know ... They Grow up here in northern California really well... get a...Read More

B
Norman, OK (Zone 7a) | December 2015 | positive

Decided to plant a few seeds in my backyard to compliment my wild transplants of a related species. After 2 years (they're biennial), an...Read More

C
Walnut Creek, CA | June 2013 | positive

Salsify has become one of my new most favorite plants. It's spherical seed head is astoundingly symmetrical. It self-seeds like there's...Read More

R
Moulton, IA | December 2008 | neutral

Salsify helps carrots, lettuce, onions, and leeks in companion planting.

W
| July 2004 | positive

There is a growing area of salsify in the India Dock basin bird sanctuary next to the Thames in London.

The plant does in...Read More

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