(United States). The average Gardener in the United States earns approximately $13.35 per hour. The income range spans the entire spectrum between $9.24 per hour and $24.17. Residence is the biggest factor affecting pay for this group, followed by career length.Women make up a slight majority of Gardeners (55 percent) survey respondents.Job satisfaction for Gardeners is high.ardeners with a lot of experience do not necessarily enjoy more money. Workers with less than five years' experience earn around $25K on average, and those who have five to 10 years under their belts see a higher median salary of $29K. The average pay reported by folks with 10 to 20 years of experience is around $35K.