Sow Timer: Seed Starting

SowTimer turns your local frost dates into a seed-starting and planting calendar: when to start seeds indoors, harden off, transplant, sow outdoors and harvest, for every crop you grow.

No subscription: every core feature is free, and Pro is a single $3.99 purchase.

DATES FOR YOUR GARDEN
• Enter a ZIP code and pick one of the three nearest weather stations. Frost dates come from NOAA 1991-2020 climate normals, built into the app.
• Choose how cautious to be: Safe, Typical or Bold
• Or type your own frost dates, or choose "no frost"
• Works in the southern hemisphere too

60+ CROPS WITH CITED TIMINGS
• Vegetables, herbs and flowers, each timed from university extension guides. The sources are listed in the app.
• Start indoors or sow direct, spring or fall
• Succession sowing: sow again every few weeks, stopping before frost
• Fine-tune the timing of any planting, or add your own crop

ALWAYS KNOW WHAT'S NEXT
• "This week" shows what's late, due and coming up
• A month calendar of every job
• Did it on another day? Your plan follows the real dates.
• Sowed a few things today? Check several off at once, with Undo
• Variety, notes and a record of what you did each year

REMINDERS THAT ARRIVE
• One reminder per job day, at the time you choose
• Gentle nudges for missed jobs, plus an optional Sunday summary
• Mute any planting

PRIVATE BY DESIGN
• Works offline. No account and no sign-up. Your ZIP code never leaves your phone.
• Back up to a file and restore it, at no cost
• Android's own backup can copy your plan to your Google account

FREE VERSION
• Every crop, planting, succession sowing, reminder, the calendar and backups
• A home-screen widget with this week's jobs
• A small ad on the home screen, shown only after you've saved your first plan
• Optional short video: watch one to try every Pro feature for 24 hours. It's always your choice, and there are no ads during those 24 hours.

SOWTIMER PRO (one-time purchase)
• Multiple gardens, each with its own frost dates: home, allotment, cabin
• Copy last year's plan in one tap
• Export your plan to your calendar (.ics) or a spreadsheet (CSV)
• No ads
• Extra accent colors

Questions or ideas? Write to [email protected].