Also, most of the decorative variegated hollies used for holiday trimming are tender in the colder climates and would not be winter hardy.

It can be grown as an annual in areas where it is not winter hardy and will bloom in the first year when grown from seed.

In trials in the USA it was found to propagate well, and also proved to be very winter hardy.

Spinach is winter hardy.

It is not winter hardy in US zone 3 unless you receive abundant snow cover.

It is winter hardy (USDA zone 5b through 9b) and very disease resistant.

A. Yes, most of the primrose clan is winter hardy, but it is difficult to know exactly what is meant by English primrose.

Twelve cultivars are offered, all of which the nursery says have proved winter hardy on Long Island.

If set in a sheltered place, skimmia can endure rather cold winters, although in exposed places, it may not be winter hardy.

In cool temperate regions it is not winter hardy, and is often grown as an annual plant.