3 Eryngium planum 'Big Blue' Dwarf Sea Holly Starter Perennials. Iridescent Blue Flowers. Love Sun.
3 Eryngium planum 'Big Blue' Dwarf Sea Holly Starter Perennials. Iridescent Blue Flowers. Love Sun.
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Plants depicted in photos are at maturity. We sell starter perennials shipped bare root, as plugs (young plants) or bulbs. Plugs are shipped trimmed to reduce stress during travel. We do not ship plants in containers.
Common Name: Dwarf Sea Holly
'Big Blue' Eryngium delivers exceptional blooms—among the largest and most vibrant blue flowers available. This hardy perennial generates abundant iridescent blue flowers prized by florists for fresh and dried arrangements. Gardeners love it for outstanding drought tolerance and its striking blue accent in borders.
Eryngium planum, commonly known as blue eryngo, flat sea holly, or blue sea holly, is a species of flowering plant in the Apiaceae (carrot/parsley) family. Native to central and southeastern Europe and Central Asia, it has been naturalized in other regions and is prized for its ornamental qualities in gardens.
Height: 18-24"
Zones: 5, 6, 7, 8, 9
Sunlight: Full Sun
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Eryngium planum 'Big Blue'
- Zones: 5, 6, 7, 8, and 9
- Height: 18-24"
- Spread: 1-2 feet
- Sunlight: Full Sun
- Foliage: Green
- Flower: Blue
- Bloom Season: Summer
- Plant Features: Bee Friendly and Attacts Hummingbirds
- Water: Average and Low
- Soil Quality: Average
- Soil Chemistry: pH 7.0
- Growth Rate: Moderate
How it all works at Hosta King
Details About Your Order
Starter Perennials Ship Trimmed
We sell starter perennials shipped bare root, as small plugs or bulbs. We do not ship in containers and we will often trim back growth on our perennial plugs to reduce stress on the plants during travel. Trimming does not hurt the plants. They'll bounce back with new growth. You'll receive your plants carefully wrapped and prepared for shipping in a box.
Plant Sizes
Starter perennials are smaller because they are young. Bare roots and bulbs speak for themselves. We have plug sizes ranging from 1-2 inches x 2-4 inches. These are not yet plants at maturity as seen in many of the photos on our store. We have photos of real starter plants on some listings and we are working to post more starter photos this year in 2026. We're adding plug sizes to the plant pages, too. Bear with us as we update all our plant detail pages so you are better informed. In the meantime, if you need more details or a photo of an actual starter, send us a message in our chat.
Delivery
Your order should arrive within 7-14 days. Occasionally, we may hold an order so that we can fulfill it with new inventory we are expecting to receive. Just send us a chat if you need a status update.
Refunds & Returns
Unfortunately, we do not do returns, refunds or offer warranties. It's hard to guarantee plant life indefinitely as there are so many variables outside our control once the plants leave our shop. However, we understand there will be times when our plants just don't do very well on the trip from our shop to your location. If there are any issues with plants when you receive them, send us a chat message from our website. We can issue store credits covering the cost of replacements.
Just keep in the mind these are starter plants, so they're small. We do not sell and ship mature plants in containers. See the details under our Starter Perennials Shipped Trimmed section, if you haven't already. Questions? Hit us up in the chat.
Cost to Ship
Shipping fees are as follows:
- $8.99 for orders up to $39.99
- $13.99 for orders between $40 and $79.99
- $19.99 for orders between $80 and $119.99
- $25.99 for orders between $120 and $159.99
- $31.99 for orders between $160 and $199.99
- $37.99 for orders between $200 and $239.99
- $43.99 for orders between $240 and $279.99
- FREE for orders $280 or greater