The search results suggest " Stepmom's Gardener Surprise " may be a niche title, possibly confused with other similar works. Below are reviews for the most likely matches, including the 1998 family classic and the more recent Master Gardener Stepmom (1998)
Also check for misspellings: “stepmom” vs “step mum” vs “step-mother”.
The proper article for your title depends on the word that follows If the word starts with a consonant sound Searching for Stepmom’s Gardener Surprise in Searching for Stepmom’s Gardener Surprise in Greenhouse If the word starts with a vowel sound Searching for Stepmom’s Gardener Surprise in Searching for Stepmom’s Gardener Surprise in Grammar Rules is used before consonant sounds (b, c, d, f, g, etc.). is used before vowel sounds (a, e, i, o, u).