"Love Grows (Where My Rosemary Goes)" is a popular song by "one-hit wonder" Edison Lighthouse. The single hit the number one spot on the UK Singles Chart on the week ending on 31 January 1970, where it remained for a total of five weeks. It also became the first number one single of the 1970s (not counting Rolf Harris' "Two Little Boys" which was a holdover from 1969).

"Love Grows (Where My Rosemary Goes)" was written by Tony Macaulay and Barry Mason. Essentially, they were a studio group with prolific session singer Tony Burrows providing the vocals. When the song became a hit, a group needed to be assembled rapidly to feature the song on Top of the Pops, a popular TV show. Mason and Macaulay found a group called 'Greenfields' and brought them to Tony's auditions a week before their appearance on Top of the Pops. Once chosen and rehearsed, they appeared on the show as 'Edison Lighthouse' to mime to the fastest climbing number 1 hit record in history. Burrows sang the song on the programme during his third appearance on the same show with three different groups.

"Love Grows" reached number 5 on US pop chart, number 3 in Canada, and number 1 on the UK Singles Chart for five weeks in January and February 1970. It reached number 3 in South Africa in February 1970.

In an interview in 2003, Rob Grill of The Grass Roots said that the song had been offered to them, but they turned it down.

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