Know when to sow.
Choose your country, enter your postal code, and get your hardiness zone, your average frost dates, and a planting calendar made for your garden — for 40 vegetables.
Free preview — no account needed. Now works worldwide 🌍
1. Enter your location
Pick your country and type your postal or ZIP code. We find your growing zone and average frost dates.
2. Get your calendar
Instantly see exactly when to sow indoors, plant out, and harvest 40 vegetables — dated for your garden, not a generic chart.
3. Grow with reminders
Save your gardens, get a task list for the next 14 days, and print your season plan for the shed wall.
What's inside
- ✅ Zone + average frost dates for your exact location
- ✅ Planting calendar for 40 vegetables, month by month
- ✅ Sow indoors / direct sow / transplant / fall sow / harvest dates
- ✅ Vegetable library with spacing, sun, difficulty & practical tips
- ✅ Multiple gardens (home, allotment, second property…)
- ✅ Next-14-days task reminders + weekly email digest
- ✅ Printable season plan (one page per month)
- ✅ Works worldwide — southern-hemisphere seasons included
Simple, one-time pricing
WhenSow — Full Access
$37 one-time
- All 40 vegetables, full calendar
- Multiple gardens, reminders, print view
- Weekly digest email
- 60-day money-back guarantee
Printable Garden Pack
+$17 at checkout
Optional add-on: beautiful printable wall charts and a paper planner version of your calendar for the shed or kitchen wall.
Offered once, inside the secure checkout — it cannot be bought separately.
Multi-Year + Second Garden
+$27 at checkout
Optional upgrade: plan up to 5 seasons ahead and manage extra gardens (allotment, family land, second home) under one account.
Offered once, right after payment — it cannot be bought separately.
Payments are processed by Digistore24. Prices in USD. No subscription, no recurring charges — add-ons are offered once, at checkout, and are entirely optional.
Honest answers
Where do the frost dates come from?
For US ZIP codes we use zone-level estimates based on the USDA 2023 Plant Hardiness Zone Map and published frost-date tables. For other countries we estimate your climate from 15 years of local daily weather history (Open-Meteo archive). Either way, dates are long-term averages — a guide for planning, not a weather forecast.
Is this a subscription?
No. The main product is a one-time payment of $37. Pay once, use it every season. There are two optional one-time add-ons at checkout (a printable pack and a multi-year/second-garden upgrade) — also one-time, never recurring.
Will it work where I live?
It works worldwide: choose your country and enter your postal code. US locations use our seeded USDA-zone data (fastest and most specific); everywhere else we compute your zone and frost dates from your local weather history. Southern-hemisphere seasons are handled correctly, and frost-free tropical locations get a year-round calendar with clearly labelled general guidance.
What exactly do I get?
Your hardiness zone, average last/first frost dates, and a month-by-month planting calendar for 40 common vegetables — when to sow indoors, direct sow, transplant, fall-sow, and when harvest should begin — plus a vegetable library, per-garden planning, 14-day reminders, and a printable season plan.
I'm a beginner. Is this for me?
Yes — the calendar tells you what to do and when, in plain dates, for the most forgiving popular vegetables. It won't replace local experience or a soil test, and we don't promise any yield: weather happens. It gives you the right timing, which is where most beginners lose their crops.
What if it doesn't work for me?
Every purchase is covered by a 60-day money-back guarantee, handled through Digistore24. Email support@whensow.me and we'll help — and Digistore24 processes refunds if you're not satisfied.