01
Balcony & window
The frost warning tells you when the tomato pot has to come inside. The watering plan follows the weather.
Forget less. Miss nothing. Harvest better every year.
Gartenkern tells you when frost is coming where you live, when to sow and when to harvest. And it remembers what grew where and what worked. From the balcony box to the allotment.
- Frost warning for your location
- Remembered across the years
- Together with family
3This weekharvest dates
Before the frost · week 46
One last round of battening down.
Whatever is done now is work you will not have in spring. And a few things want to go into the soil precisely now.
JJanFFebMMarAAprMMayJJunJJulAAugSSepOOctNNovDDec
Get the garden ready for winter
A ready-made template walks you through the work step by step, from shutting off the water to checking the roof, materials list included.
What still has to go into the soil
Garlic, tulips and daffodils want the cold before they sprout. Gartenkern shows you what gets planted in November and puts it on your calendar.
Protect the tender ones in time
Gartenkern compares the forecast with the frost threshold of your plants and speaks up before the first hard night arrives.
From the plant encyclopedia
You can still plant these this month.
What you get
Four things your garden feels every season.
Gartenkern takes care of what you would otherwise have to remember yourself. For your location, your beds, your varieties.
Miss nothing
Gartenkern tells you when frost is coming, when to sow and when to harvest, for your location.
Frost night ahead · Wed, 6 May · week 19
Forget nothing
What stood where, which variety it was and what went well stays with you for years.
South bed 2025: Tomato ‘Berner Rose’, 6.2 kg harvested
Plan better
You see beforehand what goes together, what fits in the bed and what paid off.
After the potatoes in bed 2: lamb’s lettuce or spinach
Garden together
Everyone who helps sees the same state. Nobody waters twice.
Anna watered · today 7:40
The AI chat knows your garden and names its sources. It makes all four faster.
For your garden
Wherever something grows at your place.
From the herb pot to the full vegetable bed: Gartenkern takes care of what is due in your garden. You garden, Gartenkern remembers the rest.
02
Raised bed
Companion planting shows what fits side by side, with reasons. Each bed keeps a record of what grew in it.
03
Vegetable bed
The history per bed shows what grew where last year and whether the crop break is over.
04
Fruit & berries
Harvest dates land in your calendar on their own, year after year. What went well stays in your history.
05
Herbs
Sowing dates land in your calendar on their own, and everyone in the garden sees who watered last.
How Gartenkern helps
From the seed to the harvest.
Gartenkern takes care of what you would otherwise have to remember yourself: dates, frost, varieties and who did what.
i.
Multi-year planting calendar
Miss nothing: sowing and harvest dates land in your calendar on their own, matched to where you garden. You get a warning before frost, and the watering plan follows the weather.
May 2026Spring · weeks 18–22
Up next in your garden
week 19Tomatoes outdoors
week 20Prick out basil
week 23First radishes
ii.
AI variety recognition
Forget nothing: snap the label or the plant and get the variety, even old heritage ones. One tap puts it in your bed, and the history stays with you for years.
Tomato recognized96 %
iii.
Together in the garden
Garden together: everyone who helps sees the same state. Whoever waters or harvests logs it under their name, so nobody waters twice. In sync on every device.
+2 joined
iv.
Knowledge archive
Variety portraits, care tips and local planting dates, written plainly, without the long search.
When to plant tomatoes outdoors?
Companion planting for beginners
Perennial herbs in pots
v.
Works everywhere
Runs in your browser today, no install. iOS and Android coming next, everything in sync, your garden always with you.
gartenkern.de/my-garden
My gardenWeb
Tomato
Flowering
Basil
Sprouting
Zucchini
Ripe
WebLiveiOSComingAndroidComing
Right now in the garden
What fits this week in the beds.
Discover more
Have a look around, before you start.
Two ways into the garden: see what grows, or find a plot of your own.
Plant encyclopaedia
Vegetables, fruit, herbs and more, with care tips, planting dates and variety profiles. Browse the encyclopaedia before you plan your next bed.
Explore plantsFind an allotment
More than 17,000 clubs across Germany. Find a garden near you, plus everything you need to know to get started.
Find an allotmentGarden listings
A garden looking for new hands.
Allotments and plots from all over Germany, in one place. Find yours, or hand yours over.
Why an account?
The knowledge is yours without signing up. With an account it becomes your garden.
- No account
When do I sow lamb’s lettuce?
The encyclopaedia, the magazine and the plant diseases give you the knowledge, no sign-up needed.
- Free
Why should I sign up?
The knowledge turns into your garden: dates for your location, frost warnings, nothing gets lost. To get to know Gartenkern, with no time limit.
- 1 garden
- 10 plantings
- Family
Why should I pay?
Your whole garden fits in, everyone who helps is on board, and the planning aids join in: companion planting, follow-up crops, soil, weekly suggestions, season review.
- 3 gardens
- 200 plantings
- 5 members
- Pro
What do I need more for?
Several plots and a closer look at your results: the year album, the comparison with last year and the moon calendar.
- 25 gardens
Ready to know your garden?
Set up your garden for free. With Free you get to know Gartenkern with your own garden, with no time limit and no payment details.