Biodynamic Gardening

Biodynamic gardening is a method of gardening that takes into consideration to phases of the moon. It treats the garden as a living, self-sustaining ecosystem—rather than just a place where you add fertiliser and water. 

Try your own experiment…
Take a pack of seeds, ideally an open-pollinated organic or biodynamic packet of non-hybrid seeds. Suggestion: Radish and Calendula. Divide the seeds into piles of approximately equal numbers. For simplicity let us say two piles of half the number of seeds, but it could as easily be, say, 6 piles each with a sixth of the contents of the packet. Prepare two (or six) beds or trays so they are as equal as you can make them. Use soil/compost from the same source, equal moisture and temperature and access to light.

Check your calendars or use the table below and sow half of those seeds 3 days before a full moon. If you start in June 2026, 3 days before the full moon would be 27 June. About two weeks later/earlier, 3 days before the new moon (11 July or 12 July, sow the remaining seeds.

Time will have passed so some parameters will be hard to control, but do the best you can. (If you made 6 piles of seeds you can continue this for another 2 months!)

Then note down any observations: size, colour, aroma, germination rate, time until emergence, health and taste (if radish). Anything and everything you notice. You can forward your findings to  office@biodynamic.org.uk. 

Sean’s Seed Experiment
Click here to see my own findings. 

Full Moon for UK
Friday 1 May, 6pm
Sunday 31 May, 9am
Tuesday 30 June, 1am
Wednesday 29 July, 3pm
Friday 28 August, 5am
Saturday 26 September, 6pm
Monday 26 October, 4am
Tuesday 24 November, 3pm
Thursday 24 December, 1am

New Moon for UK
Friday 17 April, 1pm
Saturday 16 May, 9pm
Monday 15 June, 4am
Tuesday 14 July, 10am
Wednesday 12 August, 6pm
Friday 11 September, 4am
Saturday 10 October, 4pm
Monday 9 November, 7am
Wednesday 9 December, 2am