When looking for synonyms for the phrase "sow the seed", some good options include "plant a seed", "begin a process", "lay the groundwork", "initiate", and "launch". Each of these phrases suggests a sense of starting something new or initiating a process that will lead to growth or change. Whether you are talking about cultivating a garden, starting a project, or beginning a new relationship, these synonyms can be used to add a sense of momentum and purpose to your language. So the next time you need to convey the idea of starting something new, consider using one of these powerful and evocative synonyms instead of the more common phrase "sow the seed".