My Deer Garden

Plant record · Perennial

Is Sea Holly deer resistant?

Eryngium sp.

Steel blue spiny sea holly flower head
Photo by Ramin Nakisa, CC BY-SA 3.0. Via Wikimedia Commons.
Damage step 4 of 4 · Frequently Severely Damaged

No. Deer will destroy this. Do not plant it unprotected.

Type
Perennial
Hardiness
Zones 4–9, genus range
Light
Full sun
Bloom
Summer
Maintenance
Low

Damage steps follow a published university field scale. How plants are rated.

About Sea Holly

Genuinely surprising at this rating, because the whole plant is stiff, spiny and metallic. Deer eat it anyway. If you want the same steel-blue architecture without the losses, globe thistle is rated Rarely Damaged and reads similarly in a bed. Needs sharp drainage and resents being moved once the taproot is down.

Protecting Sea Holly

Deer will destroy this without protection, so the question is which kind you are willing to pay for.

  1. 1How tall a deer fence needs to beEight feet, and six is the most common expensive mistake in deer fencing.
  2. 2What a deer fence costsMaterial ratios are stable even when prices are not, and installation reliably doubles the figure.
  3. 3Repellent that actually worksThe egg-based recipe that reproduces the active ingredient in the commercial sprays that win university trials.
  4. 4Check it is actually deerDeer tear and leave a ragged stub. A clean 45-degree cut is rabbits, and slug holes get blamed on deer constantly.

What to plant instead of Sea Holly

Same plant type, hardy in the same zones, and rated better for deer. If Sea Holly keeps getting eaten, these go in the same spot.

Soil and care

Soil pH
6 to 7.5
Drainage
Sharp, gritty. Will rot in wet soil
Water
Low
Spacing
18 to 24 in apart
Growth rate
Moderate
Maintenance
Low

Where Sea Holly grows

Hardy across every state on zone range alone. Mountain and coastal areas sit outside the ranges used here, so check your own zone before ordering. Select any state, including one it will not grow in, for what is resistant there.

Alabama — hardy here. Zones 7 to 9.Alaska — hardy here. Zones 1 to 8.Arizona — hardy here. Zones 5 to 10.Arkansas — hardy here. Zones 6 to 8.California — hardy here. Zones 7 to 10.Colorado — hardy here. Zones 3 to 6.Connecticut — hardy here. Zones 5 to 7.Delaware — hardy here. Zones 7 to 7.District of Columbia — hardy here. Zones 7 to 8.Florida — hardy here. Zones 8 to 11.Georgia — hardy here. Zones 7 to 9.Hawaii — hardy here. Zones 9 to 12.Idaho — hardy here. Zones 3 to 7.Illinois — hardy here. Zones 5 to 7.Indiana — hardy here. Zones 5 to 6.Iowa — hardy here. Zones 4 to 6.Kansas — hardy here. Zones 5 to 7.Kentucky — hardy here. Zones 6 to 7.Louisiana — hardy here. Zones 8 to 10.Maine — hardy here. Zones 3 to 6.Maryland — hardy here. Zones 6 to 8.Massachusetts — hardy here. Zones 5 to 7.Michigan — hardy here. Zones 4 to 6.Minnesota — hardy here. Zones 3 to 5.Mississippi — hardy here. Zones 7 to 9.Missouri — hardy here. Zones 5 to 7.Montana — hardy here. Zones 3 to 6.Nebraska — hardy here. Zones 4 to 6.Nevada — hardy here. Zones 4 to 9.New Hampshire — hardy here. Zones 3 to 6.New Jersey — hardy here. Zones 6 to 7.New Mexico — hardy here. Zones 4 to 9.New York — hardy here. Zones 4 to 7.North Carolina — hardy here. Zones 6 to 8.North Dakota — hardy here. Zones 3 to 4.Ohio — hardy here. Zones 5 to 6.Oklahoma — hardy here. Zones 6 to 8.Oregon — hardy here. Zones 6 to 9.Pennsylvania — hardy here. Zones 5 to 7.Rhode Island — hardy here. Zones 6 to 7.South Carolina — hardy here. Zones 7 to 9.South Dakota — hardy here. Zones 3 to 5.Tennessee — hardy here. Zones 6 to 8.Texas — hardy here. Zones 6 to 9.Utah — hardy here. Zones 4 to 9.Vermont — hardy here. Zones 3 to 5.Virginia — hardy here. Zones 6 to 8.Washington — hardy here. Zones 5 to 8.West Virginia — hardy here. Zones 5 to 7.Wisconsin — hardy here. Zones 3 to 5.Wyoming — hardy here. Zones 3 to 6.
Hardy on zone rangeNot hardy — still linked
Choose a state from the listeasier on a phone

Common questions about Sea Holly

Is Sea Holly deer resistant?
Sea Holly (Eryngium sp.) is rated Frequently Severely Damaged, step 4 of 4 on the damage scale this site uses. Deer will destroy this. Do not plant it unprotected.
What hardiness zones does Sea Holly grow in?
Sea Holly is hardy in USDA zones 4 to 9. Outside that range it will either not survive winter or will struggle with summer heat. That is the range across the genus, so a named species or cultivar may be narrower.
Does Sea Holly grow in shade?
No. Sea Holly wants full sun and will grow thin and flop in shade.

Browse from here

Every list Sea Holly belongs to.

All perennials·Deer favorites·Full sun plants

Hardy in these zones

Zone 4·Zone 5·Zone 6·Zone 7·Zone 8·Zone 9

Damage ratings follow the four-step field scale published by Rutgers University. Growing data is compiled from state extension sources and still being verified record by record. Last reviewed .