Moon planting calendar September 2026
Tap a day to open its day card with all the details.
September at a glance
Early autumn
Elder & horse chestnut ripe
Average onset dates in Germany (Deutscher Wetterdienst).
- Plant winter vegetables (kale, leeks)
- Plant onion sets for spring
- Sow winter green manure
Preparation work this month
Autumn application onto harvested beds
Preferred: Earth, Water · descending Moon
Last application for final ripening (morning)
Preferred: Light, Warmth · ascending Moon
Onto the soil for leaf ripening
Preferred: Water
Compost additive
Preferred: Warmth
Autumn preparation
Preferred: Earth, Water · descending Moon
Build an autumn compost heap
What suits which days
Root days
- Plant winter garlic
- Harvest root vegetables
- Give beds compost
- Harvest parsnips or leave them in the ground
Leaf days
- Sow more lamb's lettuce and winter purslane
- Sow spinach as a winter crop
- Last basil harvest
- Protect parsley under fleece
Flower days
- Plant spring bulbs (tulips, daffodils)
- Divide and replant perennials
- Enjoy the dahlias
- Tend chrysanthemums
Fruit days
- Harvest apples and pears
- Harvest pumpkins (before frost)
- Harvest the last tomatoes and sweet peppers
- Harvest walnuts and hazelnuts
Sowing and felling times in September
Alder, Elm, Apricot, Peach, Larch
Alder, Elm, Apricot, Peach, Larch, Magnolia
Alder, Elm, Apricot, Peach, Larch, Beech, Hornbeam, Pine, Palm, Quince, Blackthorn, Thuja, Juniper, Damson, Spruce, Fir, Cedar
Rowan, Ash, Hazel, Mirabelle plum, Cherry plum, Spruce, Fir, Cedar, Hawthorn
Rowan, Ash, Hazel, Mirabelle plum, Cherry plum, Spruce, Fir, Cedar
Rowan, Ash, Hazel, Mirabelle plum, Cherry plum, Spruce, Fir, Cedar, Blackcurrant
Sowing time: sow the seeds of trees and shrubs. Felling time: cut timber that is meant to last.
Soil building and regenerative practice
Second spade test of the year: how has the soil structure developed over the season? Comparing with spring shows whether the measures are working.
Sow a winter-hardy green manure: winter vetch, crimson clover or winter rye protect the soil until spring and provide organic matter.
Collect autumn leaves and spread them on beds as mulch – protects against frost, feeds earthworms and turns into humus by spring.
Astronomical calculations after Jean Meeus · IAU constellation boundaries · All information without guarantee
Planting days September 2026 after Maria Thun
The days in this month follow Maria Thun’s method: root, leaf, flower and fruit days by the constellation the moon stands in front of, worked out for your place. The whole month is available on one A4 page as a PDF, free with the calendar post.
Printable moon calendar September 2026
Every day on one A4 page: day type with change time, moon phase, ascending or descending moon and the unfavourable hours. Free, for the fridge or the garden shed.
What to sow and plant in September 2026
Each plant belongs to the day type of the part you grow it for: carrots on a root day, lettuce on a leaf day, flowers on a flower day, beans on a fruit day. Below are the plants whose sowing or planting time falls in this month.
Leaf day
Days: 8, 17–18, 26–28
Chervil, Chinese cabbage, Cocksfoot, Cress, Lamb's lettuce, Meadow fescue, Meadow foxtail, Mizuna, Perennial ryegrass, Rocket, Spinach, Sweet woodruff, Timothy, Wild garlic
Flower day
Days: 6–7, 15–16, 24–25
Columbine, Corn poppy, Cornflower, Crimson clover, Crocus, Daffodil, Forget-me-not, Hyacinth, Iris, Lily, Mustard, Oilseed rape, Primrose, Snowdrop, Tulip, White mustard, Winter oilseed rape (green manure)
Fruit day
Days: 1–2, 9–11, 19–21, 29
Barley, Black oat, Caraway, Einkorn, Emmer, Rye, Spelt, Triticale, Winter rye, Winter rye (green manure), Winter vetch, Winter wheat
What to harvest in September 2026
Harvest on the day type of the crop, parts above ground preferably in the ascending moon, root vegetables in the descending moon.
Root day
Days: 3–5, 12–14, 22–23, 30
Beetroot, Carrot, Celeriac, Comfrey, Fennel (bulb), Oilseed radish, Onion, Potato, Radish, Sugar beet, Swede, Sweet potato, Valerian, Winter radish
Leaf day
Days: 8, 17–18, 26–28
Basil, Batavia, Borage, Butterhead lettuce, Celery, Chard, Chinese cabbage, Chives, Cocksfoot, Coriander, Cress, Dandelion, Dill, Endive, Kohlrabi, Leek, Lemon balm, Lollo Rosso, Lovage, Marjoram, Meadow fescue, Mint, Mizuna, Mugwort, New Zealand spinach, Oak leaf lettuce, Oregano, Pak choi, Parsley, Perennial ryegrass, Radicchio, Red cabbage, Ribwort plantain, Rocket, Rosemary, Sage, Savory, Savoy cabbage, Sorrel, Spinach, Stinging nettle, Tarragon, Thyme, White cabbage, Wormwood
Flower day
Days: 6–7, 15–16, 24–25
Artichoke, Berseem clover, Broccoli, Calendula, Cauliflower, Elder, Fennel (herb), Hyssop, Lucerne, Nasturtium, Phacelia, Red clover, Romanesco, Serradella, Sunflower, Sunflower (oil), Sweet lupin, Tagetes, Tansy, White clover, Wild chicory, Wild marjoram, Yarrow
Fruit day
Days: 1–2, 9–11, 19–21, 29
Amaranth, Apple tree, Aronia, Aubergine, Blackberry, Blueberry, Buckwheat, Butternut squash, Chickpea, Chilli, Climbing bean, Cornelian cherry, Courgette, Cranberry, Cucamelon, Cucumber, Damson, Fig, French bean, Grapevine, Hawthorn, Hazelnut, Hokkaido squash, Maize, Melon, Millet, Okra, Peach, Pear tree, Pepperoncini, Physalis, Plum tree, Pumpkin, Quinoa, Raspberry, Runner bean, Sea buckthorn, Sweet melon, Sweet pepper, Tomato, Walnut, Watermelon
Neighbours, crop rotation and the next days for each plant are in the calendar app above, under “Plants”.
Due in September
Horn manure 500Autumn application onto harvested bedsfrom €19.69Choose a pack
Horn silica 501Last application for final ripening (morning)from €14.19Choose a pack
Horsetail preparation 508Onto the soil for leaf ripeningfrom €14.19Choose a pack
Valerian preparation 507Compost additivefrom €17.49Choose a pack
Barrel compostAutumn preparationfrom €17.49Choose a pack
Compost preparationsBuild an autumn compost heapfrom €97.90Choose a pack
Preparation days this month
Calculated for Europe/London. Highlighted: root days for horn manure.
Preparations this month
Working with the preparations in September — the making cycle begins
Barrel compost and horn manure carry the autumn sowing, horn silica ripens the fruit — and in the soil the great making cycle begins: burying and lifting.
Frequently asked questions about September 2026
- When is the Full Moon in September 2026?
- The Full Moon falls on September 26, 2026 at 17:49.
- When is the New Moon in September 2026?
- The New Moon falls on September 11, 2026 at 04:27.
- When is the moon waxing in September 2026?
- The moon is waxing: 11–26.
- When is the moon waning in September 2026?
- The moon is waning: 1–10, 27–30.
- When is the moon ascending in September 2026?
- The moon is ascending: 1–4, 19–30.
- When is the moon descending in September 2026?
- The moon is descending: 5–18.
- When is a Root day in September 2026?
- Root day: 3–5, 12–14, 22–23, 30.
- When is a Leaf day in September 2026?
- Leaf day: 8, 17–18, 26–28.
- When is a Flower day in September 2026?
- Flower day: 6–7, 15–16, 24–25.
- When is a Fruit day in September 2026?
- Fruit day: 1–2, 9–11, 19–21, 29.