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Description
Eryngium Cuneifolium, commonly known as the Wedgeleaf Sea Holly, is a perennial plant that belongs to the Apiaceae family. Native to North America, this plant can grow up to 3 feet tall and 2 feet wide. It has a unique appearance with its spiky blue-green leaves and vibrant blue flowers that bloom in the summer. The flowers are surrounded by bracts that have a metallic sheen, giving the plant an almost futuristic look.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Apiales |
| Family | Apiaceae |
| Genus | Eryngium |
Appearance
The Wedgeleaf Sea Holly has a distinctive appearance with its spiky, blue-green leaves that have a waxy texture. The leaves are arranged in a rosette pattern, and they can grow up to 12 inches long. The plant produces vibrant blue flowers that bloom in the summer, surrounded by metallic bracts. The flowers are cone-shaped and can reach up to 2 inches in diameter. The plant can grow up to 3 feet tall and 2 feet wide, making it an excellent addition to any garden.
Care Guide
Water
Eryngium Cuneifolium prefers well-draining soil, so it’s essential to water it deeply but infrequently. Water the plant when the top inch of soil is dry, and avoid getting water on the leaves as this can cause them to rot.
Fertilization
The Wedgeleaf Sea Holly doesn’t require a lot of fertilizer. You can fertilize the plant once a year in the spring with a slow-release fertilizer.
Soil
Eryngium Cuneifolium prefers well-draining soil that is slightly acidic. You can add compost or peat moss to the soil to improve its drainage and fertility.
Sunlight
The Wedgeleaf Sea Holly prefers full sun but can also tolerate partial shade. Ensure that the plant receives at least 6 hours of direct sunlight per day.
Hardiness Zones
Eryngium Cuneifolium is hardy in USDA zones 5-9.
Common Pests & Diseases
The Wedgeleaf Sea Holly is relatively pest and disease-resistant. However, it can be susceptible to root rot if the soil is too wet. You can prevent root rot by ensuring that the soil is well-draining and not overwatering the plant.
Habitat
Eryngium Cuneifolium is native to North America and can be found in various habitats, including dry prairies, rocky slopes, and open woodlands. The plant prefers well-draining soil and full sun to partial shade.
Question and Answer
Q: Is Eryngium Cuneifolium a good plant for attracting pollinators?
A: Yes, the Wedgeleaf Sea Holly is an excellent plant for attracting pollinators such as bees and butterflies. The plant produces vibrant blue flowers that are rich in nectar and pollen, making it an attractive food source for pollinators.
Q: Can Eryngium Cuneifolium be grown in containers?
A: Yes, the Wedgeleaf Sea Holly can be grown in containers. Ensure that the container has drainage holes and that the soil is well-draining. You may need to water the plant more frequently as container plants tend to dry out faster.
Q: Does Eryngium Cuneifolium require pruning?
A: Eryngium Cuneifolium doesn’t require pruning. However, you can deadhead the spent flowers to encourage more blooms and remove any dead or damaged leaves to keep the plant looking tidy.
Q: Can Eryngium Cuneifolium tolerate drought?
A: Yes, the Wedgeleaf Sea Holly is drought-tolerant once established. However, it’s still essential to water the plant during prolonged periods of drought to ensure that it thrives.
Related Plants
– Eryngium Alpinum- Eryngium Aquaticum- Eryngium Bourgatii- Eryngium Giganteum- Eryngium Planum
References
– “Eryngium cuneifolium.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=282729.- “Eryngium cuneifolium.” Plant Database, Lady Bird Johnson Wildflower Center, www.wildflower.org/plants/result.php?id_plant=ERCU2.
