Although one big plant emits no more than many small plants, emission from one is easier to collect. (phe.rockefeller.edu)
Two lanterns, two chests, French doors... This also reminds me how much I like big plants in baskets. (emilyaclark.com)
And last but not least, I got rid of the little planter area cutting into the sidewalk, and snuck in a couple of big plant pots filled with flame - shaped evergreen topiaries on either side of the door. (theletteredcottage.net)