Sowing Weeks

Sowing Weeks is a practical tool for home gardeners who need precise indoor sowing schedules. It solves the common problem of converting seed packet instructions into specific calendar dates tailored to your location. By focusing on the timeline from seed tray to transplant, it makes the growing process easier to plan. Simply set your average last frost date once to get started. The app instantly calculates the sow indoors window, hardening-off week, and plant-out week for each crop. This ensures you start seeds at the right time without manual math or guesswork every year. The main screen displays a season ribbon with a row for each crop. You can visualize the sowing, hardening-off, and plant-out periods on a shared weekly axis. A distinct line marks your last frost date, while the current week is highlighted. A clear block at the top tells you exactly what to sow now. If you miss the ideal sowing window, the app adjusts your plant-out date accordingly. It shows the delay in plain terms on the seed tray, so you know when to expect maturity. You can also test how moving your frost date by a day or a week changes the entire schedule. Sixteen common vegetables and herbs are built in, including tomatoes, peppers, chillies, aubergines, leeks, kale, and sweetcorn. You can copy any of these as custom varieties and adjust their weekly timings to match your specific seed packets. The app compares your custom numbers against the standard published windows as you edit. All data is stored locally on your device. With Sowing Weeks, your frost date, custom crop settings, and progress are saved privately at no registration, accounts, or internet connection required.