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Sea Holly Blue Hobbit

Sea Holly Blue Hobbit, Eryngium View Larger Image
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Shipping begins in late March based on ground temperatures, warmest zones first. Learn More…

Blooming for more than 4 weeks, the Blue Hobbit Eryngium is a unique plant offering small blue and green thistle-like flowers that bloom from early summer to late summer. This variety is shorter than others, reaching heights of 8-12”. Making it perfect for borders or in hot and dry gardens. This flower is great for cut flower bouquets and for adding texture to any full sun location. (Eryngium)

Zones 4 - 8
Bee Friendly
Bee Friendly
Cut Flowers
Cut Flowers
Extended Blooms
Extended Blooms
Dried Flowers
Dried Flowers
Plants for Small Spaces
Plants for Small Spaces
Light Requirements
Full Sun
Full Sun
Mature Plant Size 8-12" tall, 10-12" wide
Bloom Time Mid summer
Size Plant - 3" pot

Plant Information

Here's a fascinating plant, new to us this year. But hardly new. Most Sea Hollies grow along the Mediterranean coast as striking blue wildflowers, and they have been admired for centures. Even Plutarch wrote about this plant in ancient Rome! One of the species also grows in the Alps, and that one is Erynigium alpinum, or Alpine Sea Holly. Our selection is from that species, and said to be one of the bluest of them all.

The great British gardener of the Edwardian period, William Robinson, the first plant expert who was seriously interested in wildflowers, said Sea Holly was his all-time favorite. Stunned by the blue coloring, rare in flowers, he wrote that Sea Holly was not surpassed in beauty by any plant! Quite an endorsement.

For good growth, Sea Holly requires full sun and a gritty, fast-draining soil, so site yours carefully. The flowers arise in mid-summer from plants about 30 tall, and by the way, both the leaves and roots are edible.

Common Name Sea Holly
Botanical Name Eryngium
Zones 4, 5, 6, 7, 8
Light Requirements Full Sun
Flower Color Blue
Mature Height 8-12" tall
Estimated Mature Spread 10-12" wide
Bloom Time Mid summer
Planting Depth Crown of plant should rest just at or above the soil surface after watering in.
Ships As Potted Plant
Foliage Color Green
Planting Time Spring / Summer
Soil Type Loamy Soil, Drought/Dry Soil
Soil Moisture Dry, Average, Well Draining
Advantages Bee Friendly, Cut Flowers, Extended Blooms, Dried Flowers, Plants for Small Spaces
Ships to Hawaii, Alaska & Canada No


Shipping begins in late March based on ground temperatures, warmest zones first.

As soon as your order is placed you will receive an order confirmation email that will include your shipping information. We ship perennials and spring-planted bulbs at the proper planting time for your hardiness zone. Perennials and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you need express shipping or have any questions, please call Customer Service toll-free at (877) 309-7333 or contact us by email.

You will receive a second email the day your order ships telling you how it has been sent. Your order is scheduled to arrive at your door, fresh and ready to plant, usually within 3-5 days of leaving our warehouse, depending on your shipping address. We pack our plants to withstand up to 10 days in transit, in the event transit is delayed. We cannot guarantee arrival on a specific day. Please make sure to open your package upon receipt and follow the instructions included.

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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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