Iridescent Blue Blooms and Stems!
Eryngium 'Big Blue' PP#20,636
Easy to grow and attractive to butterflies.
Great for fresh or dried arrangements.
Plant Patent #20,636. Far and away the brightest Sea Holly yet, this dramatic cultivar opens its 4-inch blooms pure white, and then the petals darken to brilliant blue. As the bloom matures, the color moves down the stem, until the entire flowering stalk is an iridescent shade of blue! Great for fresh or dried arrangements and content in dry soil, this butterfly magnet is very easy to grow and long-blooming. Silver foliage enhances its appeal. Zones 4-9.
| Genus | Eryngium |
| Variety | 'Big Blue' |
| PPAF | PP#20,636 |
| Bloom Season | Early Summer - Late Summer |
| Zone | 4 - 9 |
| Plant Height | 24 in - 2 ft 6 in |
| Plant Width | 24 in - 2 ft 6 in |
| Item Form | 4-inch Pot |
| Additional Characteristics | Butterfly Lovers, Easy Care Plants, Flower, Long Bloomers |
| Bloom Color | Blue, White |
| Foliage Color | Silver/Gray |
| Light Requirements | Full Sun |
| Season Of Interest | Summer |
| Uses | Beds, Border, Cut Flowers, Foliage Interest, Outdoor |
| Restrictions | CAN, HI, PR |
- Butterflies like a lot of sunlight, so locate your garden in a sunny area.
- If you live in a windy location, plant your butterfly-attracting plants near a building, fence, or hedge to protect them.
- Plant a variety of nectar-rich plants, as well as shrubs and evergreens for shelter.
- Since many butterflies and native flowering plants have co-evolved, try to put in some that are native to your area. The Lady Bird Johnson Wildlife Center provides lists of plants native to states and regions.
- Certain colors are particularly attracting to butterflies – red, yellow, pink, purple, or orange blooms that are clustered or flat-topped, with a short flower tubes are especially attractive to adult butterflies.
- Avoid using pesticides, especially around nectar-producing plants.
- Provide a shallow source of water – try a birdbath with pebbles lining the bowl.
- Place a rock in a sunny spot for butterfly basking and resting.
- Create a "puddling area" by digging a shallow hole filled with compost or manure where rainwater will collect and release essential salts and minerals.
- If you want butterflies to breed in your garden, put in some caterpillar food plants, such as parsley, milkweeds, asters, thistles, violets, clover, grasses, and Queen Anne’s Lace.
- Since butterflies need nectar throughout the entire adult phase of their lives, try to create a design that will allow for a continuous bloom – when one stops blooming, another starts.










