Stop Guessing.
Start Growing.
Know exactly what to plant this week in your garden.
Enter your ZIP code and get AI-powered weekly planting guidance tailored to your exact climate zone. No account required.
🌱 Open Sow What? Now!Free · Works on any device · No signup required
Everything You Need to Garden with Confidence
Personalized planting guidance delivered weekly
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Zone-Specific
Recommendations tailored to your exact USDA hardiness zone. No more generic advice that doesn't work in your climate.
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This Week's Guide
See what to direct sow, transplant, or start indoors right now. Never miss another planting window.
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AI-Powered
Real-time recommendations that adapt to current conditions. Smart guidance when you need it most.
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Companion Planting
Learn which plants grow best together for healthier gardens and bigger harvests.
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Works Anywhere
Progressive Web App that works on any device and even functions offline. Garden without wifi!
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Easy Shopping
Direct links to purchase seeds, tools, and supplies. Get everything you need in one place.
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Microclimate Detection
Optionally share your location for hyperlocal analysis — elevation, water proximity, and urban heat effects.
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Privacy First
Your location is never stored long-term. Used only to calculate your zone and planting windows.
How It Works
Choose Your Input
Enter your ZIP code, or optionally enable device location for microclimate analysis.
Get Recommendations
See exactly what to plant this week based on your zone and local conditions.
Microclimate Details
Receive detailed notes explaining how local factors affect your frost dates and planting windows.
Start Growing
Follow tailored instructions with confidence, knowing your exact growing conditions.
"I used to spend hours researching planting schedules. Now I just check Sow What? Now! every week and know exactly what to do. It's like having a master gardener in my pocket."
Ready to Grow Smarter?
Join our beta and get weekly planting guidance for free.
Try Sow What? Now! →🗺️ How Microclimate Detection Works
When you enable the optional location feature, we analyze your exact coordinates to detect microclimate factors specific to your garden:
- ✓Elevation effects – Adjust frost dates for mountain or valley locations
- ✓Water proximity – Detect nearby lakes, rivers, or coastlines that moderate temperature
- ✓Urban heat islands – Account for city warming vs. rural cooling effects
- ✓Frost pocket detection – Identify cold-air settling areas in your area
Privacy First: Your coordinates are never stored long-term. We use them only to calculate your nearest ZIP code for zone accuracy and microclimate analysis.
Frequently Asked Questions
What hardiness zone am I in?
Enter your ZIP code or enable device location — Sow What? Now! maps your location to the USDA hardiness zone and gives zone-specific planting dates.
When should I start seeds indoors?
The app shows seed-starting windows for your zone — for example, start tomato seeds X weeks before your last frost. Use the weekly guide to plan direct sow vs. transplant dates.
Can I rely on ZIP code instead of GPS?
Yes — ZIP code provides reliable zone-level recommendations. Enabling GPS improves microclimate detection (elevation, nearby water, urban heat islands) for even finer guidance.
Does the app store my location?
No. Location is used only temporarily to calculate local planting windows and is not stored long-term.
Is it free? Do I need an account?
Sow What? Now! is free during beta and does not require an account to get weekly planting guides.