Biodynamic Gardening Notes 14 - 20 December

The moon is ascending this week – The earth breathes out.  We see this as growth activity above the soil.  Growth forces and saps flow upwards more strongly and increase the plants vitality. This is the time to spray horn silica preparation 501, cultivate at the appropriate constellation before sowing, harvest on an air constellation plants for medicinal purposes, flowers and plants for preparation making and field crops such as silage and hay (Biodynamic Resource Manual, 51-53). The moon is also waning this week.  Each night it rises about an hour later and is getting smaller, approaching the new moon on Sunday 25th.

This is a great week to weed.  Maria Thun emphasized that working in your garden on the constellation in which the plant you are trying to encourage lies, emphasizes that plant’s qualities.  Based on her research, weed around your cabbages in a water sign, your broccoli in a flower sign, your carrots and root crops in an earth sign and your corn in a fire sign.

This is also a great week to harvest herbs - medicinal for tinctures, salves or drying; culinary for drying; or for using in biodynamic preparations.

For kitchen and medicinal herbs we recommend the following: harvest leaf and flower herbs on flower days; seeds and wild fruits on fruit days; and roots on root days.  This will ensure the best aroma and vitality.  For preserving one should choose a flower day.  - Maria Thun

Following the rhythm of the earth, it is best to harvest leaf, flower and seeds in the morning when the earth's forces are streaming upwards.  After 3pm, the earth's forces stream down to the roots and that is the best time of day to harvest roots.

With the moist spring that we have had, we have been spraying Casuarina tea, seaweed brew and/or witch’s brew weekly to fortnightly to give support  to the plants and help them to overcome any fungus, mildews and/or rusts which may be starting.  Pay careful attention to cucumbers, grapes, melons, pumpkins, tomatoes, and zucchini and summer squash plants.

Plants like tomatoes, zucchini, corn, capsicum and eggplant would benefit from a liquid feed.  Try making compost tea by mixing a few bucketfuls of compost into a drum of water.  Apply this during a leaf or root sign.

You can continue to plant or sow beetroot, cabbage, capsicum, cucumber, carrot, cauliflower, celery, Chinese cabbage, eggplant, leeks, lettuce, marrow, spring onion, parsnip, potatoes, pumpkin, radish, silverbeet, sweetcorn, tomatoes and winter squash.

On Wednesday, Thursday and Friday until 04:55, the moon is in a water sign. Water signs are favourable for leaf plants.  These include all the plants whose leaves we harvest: cabbages, cauliflower, parsley, coriander, lettuce, spinach, bok choy, silver beet, asparagus and fennel.

On Friday, Saturday and Sunday until 09:23, the moon is in a fire sign.  Warmth or fire signs are favourable for fruit plants.  These include all plants whose seed fruit we harvest: beans, peas, grains, cucumbers, squashes, lentils, corn, capsicums, rice, soya, tomatoes, zucchini, eggplant, strawberries and fruit trees.

The moon then moves into an earth sign until Tuesday at 12:04. Earth signs are favourable for root plants.  These included all plants whose roots we harvest: carrots, parsnips, radishes, beetroot, celeriac, swedes, potatoes, onions and garlic.

The moon is in an air sign for the rest of Tuesday, Wednesday and Thursday until 13:40.  Air signs are favourable for flower plants.  These include all the plants, which are grown for their flowers, and where we want a long flowering time: garden flowers, medicinal and preparation flowers, bulbs and broccoli.

-Gardening Notes are compiled using Brian Keats Antipodean Astro Calendar; Maria Thun’s Gardening for Life; Biodynamic Agriculture Australia’s Biodynamic Resource Manual; Peter Cundall’s The Practical Australian Gardener; Louise Riotte’s Astrological Gardening; and the experiences and farm practices on Transition Farm

Links for more information

For more information about our Biodynamic Gardening Notes, visit our previous post About our Biodynamic Notes.

For more information about liquid brews for plant health, visit our Seasonal Notes page and click the tag “liquid brews” .

For more information about Biodynamics and to purchase biodynamic preparations visit Biodynamic Australia at

For more information about the Antipodean Astro Calendar, Biodynamic Planting and research and more visit Brian Keats’ website at