The plant metaphors are often most powerful when they're unspoken or when they run alongside actual, physical planting. That's why I want you to literally plant some seeds, actual literal seeds in actual literal soil. And here's how, alongside some of my thoughts of how this embodied metaphor can help how you approach your writing. If this seems very odd, think of it as that bit in the book where the sensei insists you scrub the floor with sand at dawn every day and that turns out to hold the secret at the heart of all martial arts!
You'll need a wodge of newspaper, a glass (ideally a tumbler), some soil, and a packet of seeds.
You can write what they are on the newspaper, with a permanent marker (felt-tips will run when the pot gets watered)