Gro 'n Sell
Eryngium
A true perennial, hardy to zone 3. This series will flower the first year, with more abundant yields on longer stems in subsequent years. The long stems are long lasting as a fresh cut, and they also dry well.
Grown in a 128 tray, billed as 125.
Order 10 or more weeks in advance of desired ship date.
Blue Glitter photo courtesy of Kent Miles, Illinois Willows. White Glitter photo from Benary
About Tray Sizes
210 and 125 cell trays are full-sized trays, and three of these will fit in a shipping box.
50 cell trays are half-sized trays (unless otherwise noted) and two of these are the equivelent of one full sized tray. Six of these will fit in a shipping box.
18 and 32 cell trays are full sized trays specifically for our vernalized perennials. These have their own set of shipping rules (find details HERE) and cannot be combined with items grown in 210, 125, or 50 cell trays.
Growing Guides
Click here to access all of our comprehensive growing guides.
| Common Name | Eryngium, Sea Holly |
| Genus | Eryngium |
| Species | Multiple (Glitter series are E. planum) |
| Family | Apiaceae |
| Life Cycle | Herbaceous Perennial |
| Format | Plugs |
| Plug Care | Harden off and plant out or bump up into larger cells soon after receiving plugs to avoid them becoming stressed or rootbound. |
| Netting / Staking | Not necessary. |
| Temperature Range | Hardiness zones 3-8. Grow best at temperatures between 60-70F and struggle with extreme heat. |
| Spacing | 18-24" - Plants will slowly grow larger with each passing season but rarely need to be divided. |
| Soil Preference | Well draining soil is essential, eryngium is sensitive to overwatering. After establishing in their new bed they are quite drought tolerant and can withstand sandy, even salty conditions along a coast. |
| Day Length | Long-day plant. Plant in full sun. |
| Pinching | Do not pinch. |
| When to Plant | Plant plugs in spring, after threat of frost has passed. Can be planted later in the season but you won't see flowers until the following year. |
| Harvesting | Excellent for fresh or dry use. Cut entire stem down to the base of the plant when the flowers and bracts turn blue or white (depending on cultivar). Cut stems should immediately placed in cool water. |
| Post Harvest Care | Hang upside-down to air dry (Use a desiccant to preserve the intense blue coloration) or use fresh - expect a vase life of 7-10 days and use a floral preservative to maximize vase life. Can be stored in a cooler at 40F which has been reported to intensify the color. |
| Diseases / Insects | Eryngium is fairly resistant of most pests and diseases, but like most plants can be attacked by aphids. Root rot is a leading issue in poorly drained soils. |
| Bailey's Notes | Both Blue Glitter and White Glitter will flower first year if planted early in the season, but don't expect much of a show year one. Each year the plants will get progressively larger and produce more stems for cutting. |
| Resources |
Kolster Culture Sheet (downloads as .pdf) |