A lady of good family / Jeanne Mackin.

Enhanced descriptions from Syndetics:

From the author of The Beautiful American comes a richly imagined, beautifully written novel about historical figure Beatrix Farrand, one of the first female landscape architects.

Raised among wealth and privilege during America's fabled Gilded Age, a niece of famous novelist Edith Wharton and a friend to literary great Henry James, Beatrix Farrand is expected to marry, and marry well. But as a young woman traveling through Europe with her mother and aunt, she already knows that gardens are her true passion.

How this highborn woman with unconventional views escapes the dictates of society to become the most celebrated female landscape designer in the country is the story of her unique determination to create beauty and serenity while remaining true to herself.

Beatrix's journey begins at the age of twenty-three in the Borghese Gardens of Rome, where she meets beguiling Amerigo Massimo, an Italian gentleman of sensitivity and charm--a man unlike any she has known before....