Meserve Holly (Ilex 'Casanova')
While ‘Casanova’ is a specific cultivar of Meserve Holly, Meserve Hollies in general are hybrids bred to be cold hardy. They are **not** native to any particular geographical location.
Here’s a breakdown:
* **Meserve Hollies (Ilex × meserveae)** are hybrids created in cultivation. They are a cross between *Ilex aquifolium* (English Holly, native to Europe, North Africa, and West Asia) and *Ilex rugosa* (native to Japan).
* **Therefore, the “native region” is essentially a nursery or breeding program.** They were developed to combine the attractive appearance of English Holly with the cold hardiness of Ilex rugosa.
* The primary goal of the breeding program was to create a hardy holly that could withstand colder climates than typical English hollies. They are now commonly grown in USDA hardiness zones 3-7.
So, you won’t find Meserve Hollies growing wild in a specific native region. Their origin is in horticultural breeding, aiming for cold hardiness for gardens in temperate zones.