Rowtime: Garden Planner turns a US ZIP code and a chosen set of frost dates into a seasonal calendar for 27 listed crops. It uses nearby NOAA climate normals for frost dates, PRISM data for hardiness zones, and regional extension tables where frost dates do not describe local growing seasons. Each planting date links to its published guide and explains how the date was counted; the developer says the app reports when guidance is unavailable instead of inventing a date. Gardeners can choose safer or average frost dates, enter their own, mark tasks complete, and get updated dates when plans shift. The calendar includes sowing, transplanting, harvest, and reminders, plus notes and year-to-year garden records. Garden data syncs through the user's iCloud and the built-in planting information works offline. The listing says the app is free, has no ads, and collects no data.
