- "We drove over the Upper Bridge to Mr Pratts who has a large collection of plants and extensive Greenhouses & ca. His grounds are too much after the French manner of pleasure gardens."
"But the most enchanting prospect is towards the grand pleasure grove & green house of a Mr. Prat[t], a gentleman of fortune, and to this we next proceeded by a circutous [sic] rout, passing in view of the fish ponds, bowers, rustic retreats, summer houses, fountains, grotto, &c., &c. . . . Next is a round fish pond with a small fountain playing in the pond. An Oval & several oblong fish ponds of larger size follow, & between the two last is an artificial cascade. Several summer houses in rustic style are made by nailing bark on the outside & thaching the roof. There is also a rustic seat built in the branches of a tree, & to which a flight of steps ascend. In one of the summer houses is a Spring with seats around it. The houses are all embelished [sic] with marble busts of Venus, Appollo, Diana and a Bacanti. One sits on an Island on the fish pond. All the ponds filled with handsome coloured fish.
- "The grounds are planted with a great variety of shrubbery & evergreens of various kinds of the pine & fir, and the hot house is said to be the largest in the US. It is filled to overflowing with the choicest Exotics: the Chaddock Orange of different kinds & the Lemon loaded with fruit. There are two coffee trees with their berries. Some few shrubs were in flower & others seeded, & I was politely furnished with a few seed of 2 varieties of flowers (Myrtle & an accacia). In front of the hot house, one at each end, is a Lion of marble, well executed, & a dog in front. On the roof is a range of marble busts."
- Committee of the Pennsylvania Horticultural Society, 1830, describing Lemon Hill (quoted in Boyd 1929: 431-432) 
"Undoubtedly this is the best kept garden in Pennsylvania, and when associated with the green and hot house department, may be pronounced unrivalled in the Union. The gravel walks, espaliers, plants, shrubs, mounds, and grass plats, are dressed periodically and minutely...
"The treasures contained in the hot and green houses are numerous. Besides a very fine collection of Orange, Lemon, Lime, Citron, Shaddock, Bergamot, Pomgranate and Fig trees in excellent condition and full of fruit, we notice with admiration the many thousand of exotics to which Mr. Pratt is annually adding. The most conspicuous among these, are the tea tree; the coffee tree—loaded with fruit; the sugar cane; the pepper tree; Banana, Plantain, Guva, Cherimona, Ficus, Mango, the Cacti in great splendour, some 14 feet high, and a gigantic Euphorbia Trigonia—19 years old, and 13 feet high. The green houses are 220 feet long by 16 broad; exhibiting the finest range of glass for the preservation of plants, on this continent.
"Colonel Perkins, near Boston, has it is true, a grapery and peach Espalier, protected by 330 feet of glass, yet as there are neither flues not foreign plants in them, they cannot properly be called green houses, whereas Mr. Pratt's are furnished with the rarest productions of every clime, so that the committee place the conservatory of Lemon Hill at the very head of all similar establishments in this country.
- "There are some pretty bowers, summer houses, grottos and fish ponds in this garden—the latter well stored with gold and silver fish. The mansion house is capacious and modern, and the prospects, on all sides, extremely beautiful. In landscape gardening, water and wood are indispensable for picturesque effect; and here they are found distributed in just proportions with hill and lawn and buildings of architectural beauty, the whole scene is cheerfully animated by the brisk commerce of the river, and constant movement in the busy neighborhood of Fairmount."
- Downing, A. J., January 1837,"“Notices on the State and Progress of Horticulture in the United States," describing Lemon Hill (Magazine of Horticulture 3: 4)
- "For a long time the grounds of Mr. Pratt, at Lemon Hill, near Philadelphia, have been considered the show-garden of that city: and the proprietor, with a praiseworthy spirit, opening his long-shaded walks, cool grottoes, jets d’eau, and the superb range of hot-houses, to the inspection of the citizens, contributed in a wonderful degree to improve the taste of the inhabitants, and to inspire them with a desire to possess the more beautiful and delicate productions of nature."
- "Lemon Hill, half a mile above the Fairmount water-works of Philadelphia, was, 20 years ago, the most perfect specimen of the geometric mode in America, and since its destruction by the extension of the city, a few years since, there is nothing comparable with it, in that style, among us. All the symmetry, uniformity, and high art of the old school, were displayed here in artificial plantations, formal gardens with trellises, grottoes, spring-houses, temples, statues, and vases, with numerous ponds of water, jets-d'eau, and other water-works, parterres and an extensive range of hothouses. The effect of this garden was brilliant and striking; its position, on the lovely banks of the Schuylkill, admirable; and its liberal proprietor, Mr. Pratt, by opening it freely to the public, greatly increased the popular taste in the neighborhood of that city."
Thomas Birch, Fairmount Water Works, 1821.
- Kathleen A. Foster, Captain Watson's Travels in America: The Sketchbooks and Diary of Joshua Rowley Watson, 1772-1818 (Philadelphia: University of Pennsylvania Press, 1997), view on Zotero
- John Hebron Moore, "A View of Philadelphia in 1829: Selections from the Journal of B.L.C. Wailes of Natchez," Pennsylvania Magazine of History and Biography 78 (July 1954): 353–60, view on Zotero
- James Boyd, A History of the Pennsylvania Horticultural Society, 1827–1927 (Philadelphia: Pennsylvania Horticultural Society, 1929), view on Zotero
- A. J. [Andrew Jackson] Downing, A Treatise on the Theory and Practice of Landscape Gardening, Adapted to North America; . . . 4th ed. (New York: G. P. Putnam, 1849), view on Zotero