Eryngium hybrid with intense steel-blue flower heads

Eryngium ’Blue Waves’ – photo: PlantHaven International

Eryngium ’Blue Waves’ – photo: PlantHaven International

Eryngium ’Blue Waves’ is one of the novelties UK based Hillier Nurseries will put into the limelight at the RHS Chelsea Flower Show 2018 in London, May 22-26. ’Blue Waves’ is developed by Dove Cottage Nursery with Hillier. English trade magazine Horticulture Week describes it as a unique blend of Eryngium bourgatii and Eryngium alpinum. “It was first cultivated in 2002 when two plants, growing close to each other, resulted in the production almost a dozen hybrid seedlings. One of these was then selected because of its strong, upright stems and large bracted cone-like flower head, which is surrounded by a number of smaller bracted flowers.”
Deeply divided silver-green foliage
In the US royalty management agency PlantHaven International added this plant already to their Hillier Collection as Eryngium x zabelii ‘Blue Waves’. The agency summarizes the key features as follows: “Large intense steel-blue deeply divided flower heads with very good blue stems. Blooming from early summer May-June. Deeply divided silver-green foliage. Sturdy upright clumping habit 3′ x 2’”. ‘Blue Waves’ should be drought-tolerant once it is established.
PlantHaven International published on their website the results of the 2GL Pot Trials 2015 of ’Blue Waves’, which gives an idea about the crop time.
Eryngium ’Blue Waves’ 2GL Pot Trials 2015 - image: PlantHaven International

Eryngium ’Blue Waves’ 2GL Pot Trials 2015 – image: PlantHaven International