Sea Holly, Leavenworth Eryngo, Purple Button-Willow
Eryngium leavenworthii

Family: Apiaceae (ay-pee-AY-see-ee) (Info)
Genus: Eryngium (er-RIN-jee-um) (Info)
Species: leavenworthii (lev-en-WER-thee-eye) (Info)

Category:

Annuals

Foliage Color:

Silver/Gray

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Where to Grow:

Unknown - Tell us

Height:

12-18 in. (30-45 cm)

Spacing:

12-15 in. (30-38 cm)

Hardiness:

Not Applicable

Sun Exposure:

Full Sun

Danger:

Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:

Blue-Violet

Violet/Lavender

Bloom Time:

Mid Summer

Late Summer/Early Fall

Foliage:

Grown for foliage

Other details:

Unknown - Tell us

Soil pH requirements:

7.6 to 7.8 (mildly alkaline)

Patent Information:

Non-patented

Propagation Methods:

From seed; direct sow outdoors in fall

From seed; direct sow after last frost

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds

Wear gloves to protect hands when handling seeds

Regional

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

Minneapolis, Minnesota

Claremore, Oklahoma

Fort Worth, Texas

Granbury, Texas

Helotes, Texas

San Antonio, Texas

Spicewood, Texas

Uvalde, Texas

Wylie, Texas

show all

Gardeners' Notes:

2
positives
0
neutrals
0
negatives
RatingContent
Positive

On Oct 10, 2009, bertwp from Minneapolis, MN (Zone 4b) wrote:

Beautiful purple/violet color. How do you know when the seeds are ready to harvest?

Positive

On Aug 28, 2006, LindaTX8 from NE Medina Co., TX (Zone 8a) wrote:

Plant this one in an area where people will not brush up against it as it's quite prickly. A hot sunny area wouldn't be a problem...it seems to like that. The purple will show up during it's mature blooming stage and it looks cool then! If you collect seed, put on thick gloves. It could be painful handling it otherwise.