🌏 Southern hemisphereSwitch to northern
🌕

Full moon

15 September

🌑

New moon

30 September

🌱

Good sowing days

13 days

The moon passes through all twelve signs of the zodiac each month, and biodynamic growers match what they sow to the element the moon is travelling through. In September 2027 the moon is ascending in southern skies — the traditional time for sowing and grafting — on 15 days. The strongest sowing dates fall on the 1, 2, 3 and 10 other days. Days marked in the table below sit near a lunar node or perigee, when traditional practice is to leave the soil alone.

Southern hemisphere. Moon phases and day types are the same the world over — a root day in Sussex is a root day in Canterbury. What changes is that ascending and descending are reversed, because the moon climbs southern skies as its declination moves south, and the sowing lists follow southern seasons.

Day-by-day moon planting calendar for September 2027 — southern hemisphere
DateMoon phaseSignDay typeSow or rest
1Wed Waxing crescent1% Leo🍅 Fruit DayAscending — sow and graft
2Thu Waxing crescent4% Virgo🌱 Root DayAscending — sow and graft
3Fri Waxing crescent10% Virgo🌱 Root DayAscending — sow and graft
4Sat Waxing crescent18% Libra🌸 Flower DayAscending — sow and graft
5Sun Waxing crescent27% Libra🌸 Flower DayAscending — sow and graft
6Mon Waxing crescent37% Scorpio🥬 Leaf DayAscending — sow and graft
7Tue First quarter47% Scorpio🥬 Leaf DayAscending — sow and graft
8Wed Waxing gibbous57% Scorpio🥬 Leaf DayDescending — transplant and prune
9Thu Waxing gibbous67% Sagittarius🍅 Fruit DayDescending — transplant and prune
10Fri Waxing gibbous75% Sagittarius🍅 Fruit DayDescending — transplant and prune
11Sat Waxing gibbous83% Capricorn🌱 Root DayDescending — transplant and prune
12Sun Waxing gibbous89% Capricorn🌱 Root DayLunar node — avoid sowing
13Mon Waxing gibbous94% Capricorn🌱 Root DayDescending — transplant and prune
14Tue Waxing gibbous98% Aquarius🌸 Flower DayDescending — transplant and prune
15Wed Full moon100% Aquarius🌸 Flower DayDescending — transplant and prune
16Thu Full moon100% Pisces🥬 Leaf DayDescending — transplant and prune
17Fri Waning gibbous98% Pisces🥬 Leaf DayDescending — transplant and prune
18Sat Waning gibbous94% Aries🍅 Fruit DayDescending — transplant and prune
19Sun Waning gibbous88% Aries🍅 Fruit DayDescending — transplant and prune
20Mon Waning gibbous80% Aries🍅 Fruit DayDescending — transplant and prune
21Tue Waning gibbous71% Taurus🌱 Root DayDescending — transplant and prune
22Wed Waning gibbous60% Taurus🌱 Root DayDescending — transplant and prune
23Thu Last quarter49% Gemini🌸 Flower DayAscending — sow and graft
24Fri Waning crescent38% Gemini🌸 Flower DayAscending — sow and graft
25Sat Waning crescent27% Cancer🥬 Leaf DayAscending — sow and graft
26Sun Waning crescent17% Cancer🥬 Leaf DayLunar node — avoid sowing
27Mon Waning crescent9% Leo🍅 Fruit DayPerigee — avoid sowing
28Tue Waning crescent4% Leo🍅 Fruit DayAscending — sow and graft
29Wed Waning crescent1% Virgo🌱 Root DayAscending — sow and graft
30Thu New moon0% Virgo🌱 Root DayAscending — sow and graft

What to sow in September

🥬 Leaf Days7 in September

Best for leafy greens — lettuce, spinach, chard, herbs for leaf

🌸 Flower Days6 in September

Best for flowering plants, brassicas and herbs

🍅 Fruit Days8 in September

Best for fruiting plants — tomatoes, courgettes, beans, apples

Ready to harvest in September

Want the reasoning behind all this? The biodynamic growing guide covers the day types, the eight preparations and where the practice came from.