Unique, thistle-like, steely-blue flowers with pincushion centers. Extremely long-lasting and can be used as cut or dried flowers. Unique foliage complements lacy flowers.
We have assembled some of our best selling Perennials that butterflies love and have put them in this assortment below. All of the varieties on this page attract butterflies. You can buy the complete garden or the individual item that fits your need. You will find plants in all sizes and colors.
Light: Full sun to partial shade
Bloom Time: Early Summer-Early Fall
Size: No. 1 size roots
Zone: 4 to 7
We ship this item in Spring.
We'll carefully pack and ship your order at the proper planting time for your hardiness zone.
Botanical Name: Eryngium alpinum
Common Name: Blue Sea Holly
Sun Exposure: Full Sun
Height/Habit: 24 - 30 inches
Spread: 18" - 24"
Spacing: 18" - 22"
Hardiness Zone: 4-10
Flowering Date: Summer.
Winter Care: Protect from excessive winter moisture (standing water).
Shipping Season: Spring
Flower Color: blue
Flower Form: The 1 1/2" pineapple-like heads are subtended by several ruffs of delicate, pinnetely cut, steel blue bracts.
Foliage Type: Lower leaves heart-shaped, up to 6" long with margins covered in spiny teeth. Stem leaves palmately lobed, tinged with blue.
Pruning: None, except to cut back spent flower stems After flowering
Soil Requirement: Well drained, open soil
Additional Information: This has an extended bloom time as the side branches produce abundant, albeit smaller flowers. These, along with the terminal flower forms an open, broad conical flowering head.
Restricted States: AE AK GU HI PR
Shipping: View Shipping Schedule