Definition of semievergreen in US English:

semievergreen

adjective

  • (of a tree or shrub) retaining foliage part way through a season in which the leaves would normally be lost.

    • ‘Evergreen in mild-winter climates; semievergreen in colder areas.’
    • ‘Some types, such as feather reed grass, are semievergreen.’
    • ‘Bright orange with darker eye and green throat. 6-inch flowers, 28-inch stems, 22-inch leaves; semievergreen.’

Pronunciation

semievergreen

/ˌsemēˈevərɡrēn/