| hortensia | (noun) deciduous shrub bearing roundheaded flower clusters opening green and aging to pink or blue | Synonyms: Hydrangea macrophylla hortensis |
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| (noun) very tall branching herb with showy much-doubled yellow flower heads | Synonyms: double gold, golden glow, Rudbeckia laciniata hortensia |
| horticulture | (noun) the cultivation of plants | Synonyms: gardening |
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| horticulturist | (noun) an expert in the science of cultivating plants (fruit or flowers or vegetables or ornamental plants) | Synonyms: plantsman |
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