Eryngium planum ‘Blue Hobbit’

(Dwarf Sea holly)


Hardiness Zones:

 5a  5b  6a  6b  7a  7b  8a

Quick Overview:

?Blue Hobbit? is a dwarf sea holly that rises in a globular mound to only 8-12" tall when in full bloom. Spiny, egg-shaped, purplish-blue flower heads atop silver-blue stems appear in a profuse and long summer bloom. Each flower head is an umbel composed of numerous, tiny, stemless flowers in a thistle-like head subtended by a narrow, spiky collar of blue-green bracts. Flowers appear just above a foliage mound consisting of smooth, deeply-toothed, blue green leaves in basal rosettes. Cultivar name of Hobbit is in reference to dwarf fictional characters created by J. R. R. Tolkien.

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Easily grown in dry, sandy, well-drained soils in full sun. Tolerates poor soils. Tall plants may sprawl, particularly if grown in overly fertile soils or in anything less than full sun. Avoid overwatering. This is a taprooted plant that transplants poorly and is best left undisturbed once established. ?Blue Glitter? may be grown from seed and reportedly will bloom first year from seed.

Additional information

Common Name

Dwarf Sea holly

Botanical Name

Eryngium planum 'Blue Hobbit'


1 gallon

Evergreen or Deciduous


Hardiness Zone

5a, 5b, 6a, 6b, 7a, 7b, 8a

Growth Rate


Light Requirements

Part-sun, Sun


1 ft.


1 ft.

Soil Condition

Dry Soils

Water Needs


Blooming Period

June to September

Flower Color




Foliage Color

blue green

Deer Resistant


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