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Full moon

15 September

🌑

New moon

30 September

🌱

Good sowing days

14 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 — the traditional time for sowing and grafting — on 15 days. The strongest sowing dates fall on the 8, 9, 10 and 11 other days. Days marked in the table below sit near a lunar node or perigee, when traditional practice is to leave the soil alone.

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

What to sow in September

🌱 Root Days9 in September

Best for root vegetables — carrots, beetroot, potatoes, onions

🥬 Leaf Days7 in September

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

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.