Skip to product information
1 of 1

Blue Sea Holly

76272

Regular price
1 for $8.99
Regular price
$8.99
Sale price
1 for $8.99
  • flowering dateSummer.
  • hardiness zone4-10
  • height24 - 30 inches
  • restricted statesAE AK GU HI PR
  • ship asPREMIUM
  • sun exposureFull Sun
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.

Specifications
Light: Full sun to partial shade
Height: 18-36"
Bloom Time: Early Summer-Early Fall
Size: No. 1 size roots
Zone: 4 to 7

Product Details

  • botanical nameEryngium alpinum
  • flowering dateSummer.
  • flower colorBlue
  • flower formThe 1 1/2" pineapple-like heads are subtended by several ruffs of delicate, pinnetely cut, steel blue bracts.
  • foliage typeLower leaves heart-shaped, up to 6" long with margins covered in spiny teeth. Stem leaves palmately lobed, tinged with blue.
  • growth rateModerate once established, which takes approximately 4 - 6 weeks
  • hardiness zone4-10
  • height24 - 30 inches
  • planting instructionsDig a hole large enough to accommodate the roots without bending them. Plant just below soil, 24 iches apart. Plant firmly and water in thoroughly. If potted, plant same depth as in pot.
  • pruningNone, except to cut back spent flower stems After flowering
  • restricted statesAE AK GU HI PR
  • shipping seasonSpring
  • ship asPREMIUM
  • soil requirementWell drained, open soil
  • spacing18 - 22 inches
  • spread18 - 24 inches
  • sun exposureFull Sun
  • winter careProtect from excessive winter moisture (standing water).

Shipping Schedule

When will my order ship?

Plants will be shipped at the proper planting time for your area of the country during the shipping timeframes outlined below:

2025 Spring Shipping Schedule
Zone Most Dormant Bareroot & Potted Perennials, Trees and Shrubs
3A-3B 4/28/25 - 5/30/25
4A-4B 4/28/25 - 5/30/25
5A 4/28/25 - 5/30/25
5B 4/7/25 - 5/30/25
6A 3/24/25 - 5/30/25
6B 3/10/25 - 5/30/25
7A 2/24/25 - 5/30/25
7B 2/17/25 - 5/9/25
8A 2/17/25 - 5/9/25
8B 2/10/25 - 5/9/25
9A 2/3/25 - 5/9/25
9B-10B 2/3/25 - 5/9/25
Last Order Date Zones 3A - 7B: 5/26/25
Zones 8A - 10B: 5/5/25

    Blue Sea Holly