The Moon Garden Calendar tells you when to sow, tend and harvest, day by day and season by season, for as long as you grow. It reads the Moon live, knows which plants belong to today, and keeps your garden notes on the days they happened.

Grow your garden in harmony with the Moon

A perpetual calendar: pay once, and there are no annual fees. Works in any browser and installs to your home screen. App Store and Google Play versions are on their way.

Six ways in, and you can use as much or as little as you like.

Companions

Timeline

Notes

A three-bed crop rotation, who grows well together, and pests and problems with organic treatment and prevention.

The whole year for every plant, opening on the month you're in. Swipe through it on your phone.

What you sowed, what you saw. Notes sit on their day, and anything coming up waits for you on Today.

The Seasonal Timeline lays every plant across all twelve months: when to sow, when to plant out, when to harvest. It opens on the month you're standing in, so the first thing you see is what matters now. On a phone, you swipe through the year with your thumb.

Switch to the Southern Hemisphere and the whole garden turns six months, so a March sowing up north becomes a September sowing down south. The Moon's rhythm stays the same; only your seasons move. Try it below.

A perpetual calendar, calculated live from the Moon's real position, so it never needs replacing. Pay once, no annual fees, and every season from here on is in it.

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biodynamic days

herbs and vegetables

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hemispheres

Open it and go.

The calendar opens on today. A live Moon at the top, drawn as it actually is tonight, then a row of tiles: the phase, the day type, whether the Moon is ascending or descending, and what's coming next.

If it's a Moon node day, a gentle alert tells you to rest the soil and leave sowing for another day. Below that, a garden tip, any reminders you've set, and Plant today: the herbs and vegetables that suit this exact day, ready to tap.

No searching, no cross-referencing. The Lunar Phase Tracker used to be a separate tool; it lives here now.

T O D A Y

The calendar also follows the ascending and descending Moon: ascending for sowing and harvesting what grows above ground, descending for planting out, pruning and working the soil. Moon node days are marked as rest days, better for weeding and watching than sowing.

Read the month however suits you: a grid, a list, or day blocks that set each day out in full.

Biodynamic growers follow the Moon through the zodiac. Through the earth signs it's a root day, the water signs a leaf day, air a flower day and fire a fruit day. Sow and tend each plant on the day that matches the part you grow it for, and you're working with its timing rather than against it.

Fifty-six plants, each with a bed of its own.

Medicinal herbs and kitchen vegetables, side by side. Every profile gives you the best biodynamic days for sowing and harvesting, sowing and harvest windows, soil and sun, and the plant's medicinal or culinary use.

Then its neighbours: which plants help it along and which to keep away, where it sits in the rotation, and the problems it's most likely to meet, with an organic way through each one.

The calendar remembers the last plant you opened, so you can pick up where you left off.

T H E P L A N T G U I D E

Good neighbours, rotated beds, fewer problems.

The Companion Planting and Crop Rotation Helper used to be a separate tool. It now lives inside the calendar, in its own Companions tab.

The rotation is a simple three-bed plan, the one I trust in my own garden, with permanent beds for everything that stays. Each bed moves on a place each year, so the soil gets a change of company and pests lose track of their favourite hosts.

Pests and problems has its own section: aphids to blight, slugs to mildew, each with an organic treatment and, more usefully, how to stop it coming back.

C O M P A N I O N S

Your garden's own record, kept day by day.

Tap any day to write what you sowed, what you noticed, what the garden gave you. A small gold dot marks every day with a note, so a season's record builds up in front of you as you move through the months.

Write a note on a day ahead, to pot on the basil or lift the garlic, and it will be waiting on the Today dashboard as the day comes near.

Notes stay on your device. Private, and no account needed.

G A R D E N N O T E S

In the garden, or by lamplight.

Day view is clean and bright for outdoors. Night view turns the calendar deep teal, like this, easy on the eyes when you're planning tomorrow's jobs in the evening. It remembers which you prefer.

Once it's open on your phone, it works with no signal: down the garden, on the allotment, in a field. Add it to your home screen and it opens like any other app, with its new icon.

And whichever half of the world you garden in, one switch moves the sowing windows, harvest times and timeline six months to meet your own seasons.

D A Y A N D N I G H T

Three steps to a garden day by the Moon

Most planting calendars expire every January, and you pay again. This one is perpetual. It runs on live astronomy, so it's as accurate in five years as it is today. You buy it once, with no annual fees and no subscription, and every growing season from here on is included.

Everything you might ask

Is it based on real astronomy?

Yes. It uses the Meeus astronomical algorithms to work out where the Moon actually is, live, for any day you look at. Nothing is copied from a printed table.

Does it work on my phone and offline?

Yes, on any phone, tablet or computer. Add it to your home screen and it opens like an app, and once it's loaded it works with no signal.

Do I need to know astrology or biodynamics?

Not at all. The calendar does the calculating, and explains everything as you go. If you can read a date, you can use it.

Where do my notes go?

Nowhere. They're saved on the device and browser you write them on. That keeps them private, but it also means they won't follow you to another device, and clearing your browser's storage will clear them too.

I'm in the Southern Hemisphere. Will the timings be wrong?

No. Switch to Southern and the sowing windows, harvest times and timeline move six months to match your seasons. Within each hemisphere the windows are set for a temperate climate, so if you garden somewhere much hotter or colder, nudge them a little.

What happened to the Planting Helper and the Lunar Phase Tracker?

They've moved in. Companion planting, crop rotation and pests and problems live in the Companions tab, right beside the plant profiles they belong to, and the live Moon now sits at the top of Today.

Is this a subscription?

No. It's a perpetual calendar: one payment of €9.99, permanent access, no annual fees and no expiry.

Is it in the App Store?

Not yet. App Store and Google Play versions are on their way. For now it runs in your browser and installs to your home screen, which works beautifully.

The biodynamic growing calendar is rooted in the work of Austrian philosopher and scientist Rudolf Steiner, who set out the principles of biodynamic agriculture in 1924. The German researcher Maria Thun turned them into practical planting guidance, spending decades observing how the Moon's cycles showed up in her crops.

Their work sits on much older ground: Roman agricultural writers advised sowing by the Moon, and the Māori maramataka mapped planting and harvest across the whole lunar year. This calendar draws on that long lineage and brings it into a form that works for the home grower today.

Disclaimer

The Moon Garden's Plant Guide includes traditional medicinal and culinary uses for education. It is not medical advice, and it does not diagnose or treat. Always speak to a qualified practitioner before taking herbs, particularly in pregnancy, while breastfeeding, alongside medication, or with an existing condition.

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