half-hardy

American  

[haf-hahr-dee, hahf-] / ˈhæfˈhɑr di, ˈhɑf- /

adjective

Horticulture.

1. having moderate resistance to cold temperatures.

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half-hardy British  

adjective

1. (of a cultivated plant) able to survive out of doors except during severe frost

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Etymology

Origin of half-hardy

First recorded in 1815–25

Example Sentences

All these goldenrods would pair nicely with ornamental grasses such as pink muhly grass, blue grama grass or switch grasses, along with half-hardy and tender ornamental sages.

From Washington Post • Sep. 5, 2017

Salpiglossis sinuata: half-hardy, 2 to 3 ft., yellow, purple, crimson, &c.; much varied and beautifully veined.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 7 "Horticulture" to "Hudson Bay" by Various

Calceolaria, kal-se-o-lā′ri-a, n. a South American genus of Scrophulariace�, largely cultivated as half-hardy or greenhouse plants for the beauty and variety in colour of the two-lipped slipper-like flowers.

From Chambers's Twentieth Century Dictionary (part 1 of 4: A-D) by Various

Zinnia elegans: half-hardy, 1 to 2 ft., various colours.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 7 "Horticulture" to "Hudson Bay" by Various

Pelargoniums, pinks, monthly roses and all the half-hardy kinds of flowering plants should be planted early, but coleus, heliotrope and the more tender plants should be delayed until the end of the month.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 7 "Horticulture" to "Hudson Bay" by Various