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Use "arboreta" in a sentence
"Public gardens, such as arboreta and botanical gardens, often do a splendid job educating and inspiring the public in ornamental horticulture; their offerings in food gardening tend to be more limited."
"Today is National Public Gardens Day (publicgardens. org), and arboreta, gardens and conservatories will be staging free events throughout the weekend."
"The book was created from the series of drawings she did in the 1970s when she traveled to 56 botanical gardens and arboreta in California, illustrating plants that were appealing to her eye."