Eryngium planum Blue Glitter

Blue Glitter Sea Holly

Eryngium planum ‘Blue Glitter’ (Blue Glitter Sea Holly) is an outstanding perennial that thrives in hot dry planting situations and blooms in summer with tall stems of spiny, glistening blue flowers. Drought resistant/drought tolerant plant (xeric).
Zones4 - 9
Attract Butterflies
Bee Friendly
Deer Resistant
Rabbit Resistant
Pest / Disease Resistant
Good For Cut Flowers
Good For Dried Flowers
Good For Containers
Light Requirements
Full Sun
Annual Rainfall
10 to 20"
20 to 30"
30 to 40"
Mature Height36-40" tall
Mature Spread18-24" wide
Bloom TimeSummer
ShippingNo longer available this season. Learn More…
SizePlant - 5" Pot

USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

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36-40" tall x 18-24" wide. Eryngium planum ‘Blue Glitter’ (Blue Glitter Sea Holly) is an outstanding Old World perennial that blooms in summer with tall stems of spiny, glistening blue flowers. A European bred plant for the cut flower trade (fresh and dried), it is a profuse bloomer that is invaluable for attracting bees and butterflies. It thrives in less than ideal garden conditions.
More Information
Item Package Size
Plant - 5" Pot
Common Name
Blue Glitter Sea Holly
Botanical Name
Eryngium planum Blue Glitter
4, 5, 6, 7, 8, 9
Light Requirements
Full Sun
Flower Color
Mature Height
36-40" tall
Mature Spread
18-24" wide
Bloom Time
Ships As
Potted Plant
Soil Type
Low Fertility Soil, Well-Drained Soil
Soil Moisture
Drought Resistant / Waterwise
Amount Of Rain
10 to 20", 20 to 30", 30 to 40"
Attract Butterflies, Bee Friendly, Deer Resistant, Rabbit Resistant, Pest / Disease Resistant, Good For Cut Flowers, Good For Dried Flowers, Good For Containers
Ideal Region
Northeast, Midwest, West, Southwest, Pacific Northwest
Planting Time
Spring / Summer, Fall
Item Unit Of Measure
Ships To Canada
Planting Guides

Eryngium (Sea Holly) is a genus of Old World perennials with attractive thistle-like flower bracts surrounding the round flowers. Highly attractive to honeybees and butterflies.
Preferred growing conditions:

  • Plant in a fast-draining, infertile soil with full sun. Avoid clay soils. Mulch with gravel or not at all.
  • Water regularly the first growing season to establish the plant. Thereafter, infrequent but deep watering is all this plant needs.
  • Deadheading is not needed as it will not extend the bloom season or bring the plants back into flower.
  • Fertilize lightly in the fall with a half and half blend of Yum Yum Mix and good quality compost.

Special comments:

  • Eryngium is a tap rooted plant and does not like to be transplanted once established.  Don't divide as tap rooted plants resent having their roots disturbed.
  • Seed heads are ornamental and attract seed-eating songbirds.
  • These are low care perennials that don't like rich soil or a lot of water; this makes the plants leggy and prone to flopping.

View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.

No longer available this season.

Q & A

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