Planters:
Run by designer Bunny Williams, Treillage has sleek, architectural containers that rarely play second fiddle to their contents. 418 E. 75th St., nr. York Ave.; 212-535-2288.
Lighting, Grills, Rugs, and More:
Frontgate has plenty of all-weather necessities, from batik area rugs to garden torches, but landscape designer Jeffrey Erb especially likes its selection of solar lamps. 212-263-9850; frontgate.com.
Fountains:
Custom bubblers can run in the five digits, but designer Amber Freda says the options at Restoration Hardware are a great alternative, priced from $999 to $2,515. 935 Broadway, at 22nd St.; 212-260-9479.
Outdoor Furniture:
The go-to source for interior designer Robin Baron and other experts, Brown Jordan is no dabbler in this field: It has been selling elementproof chaises, sectionals, love seats, benches, tables, umbrellas, and pillows since 1945. 800-743-4252; brownjordan.com.
Custom Bronze Statues:
Homeowners and municipalities alike have commissioned frozen likenesses from Yonkers’s Randolph Rose Collection. 914-423-2047; randolphrose.com.
Plants:
Helpful staff at Plant Shed New York Flowers, Baron’s “one-stop shop” for trees and flora, make excellent sounding boards. 209 W. 96th St., nr. Broadway; 212-662-4400.
Also noteworthy: Brooklyn Botanic Garden’s annual sale of flowers, shrubs, and vegetable plants.1000 Washington Ave., nr. Montgomery St., Prospect Heights; 718-623-7200.
Hot Tubs and Spas:
Small lots need customized pieces, especially when it comes to bulky features like hot tubs. Colorado’s Diamond Spas builds to suit and ships everywhere. 800-951-7727; diamondspas.com.
Decks, Trellises, Fences, and Pergolas:
Al Terry and his New York Decks crew are veterans of city projects, from straightforward canopies, planters, and arbors to more elaborate centerpieces like the Mercedes House’s circular deck. 212-787-9235; newyorkdecks.com.