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Farmers Almanac
The 2017 Farmers Almanac
Farmers' Almanac

March’s Full Worm Moon

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As the temperature begins to warm and the ground begins to thaw, earthworm casts appear, heralding the return of the robins. For this reason, the March full moon is often known as the Full Worm Moon.

Northern Native American tribes knew this moon as the Full Crow Moon when the cawing of crows signaled the end of winter. They also used Full Crust Moon because the snow cover became crusted from thawing by day and freezing at night.

The Dakota Sioux named it Moon When Eyes Are Sore From Bright Snow. The Full Sap Moon, marking the time of tapping maple trees, is a Colonial American variation. To the settlers, it was also known as the Lenten Moon. It was considered to be the last full moon of winter.

Find out all full moon names and their meanings »

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14 comments

1 Susan Higgins { 03.14.17 at 11:25 am }

Hi Cora McPhee, there is no relationship with this full Moon to deworming. It’s just the name of the Moon given by Native Americans due to springtime. We don’t offer a “best day” task for this.

2 Cora McPhee { 03.11.17 at 8:20 pm }

Enjoyed my first news letter would like to know if this moon is also for worming children or adults if not is it the new moon would like to know.

3 Summer-like conditions arrive this weekend, forecasters say | Weather Matters { 03.23.16 at 9:07 am }

[…] Moon — occurs today but will remain brightly lit over the next few days, according to the Farmers’ Almanac. It was called the Full Worm Moon because as the ground thawed over North America, earthworms would […]

4 RuRu { 03.23.16 at 7:30 am }

Go to the Best Days section of the Farmers Almanac and you can find the Best Days to plant seeds. You can also find the section you live in and the best days for planting in your area as well.

5 farmer john { 03.06.15 at 3:22 am }

If you want to know about the moon stay up late and go outside.

6 Full Moon | Gardening Whisperer { 03.05.15 at 9:30 pm }

[…] This Month’s “Tonight to be exact” is a Full Moon. It has several names and The Farmers Almanac has a great article on them. http://farmersalmanac.com/astronomy/2013/03/26/march-full-worm-moon/ […]

7 Ellen Campbell { 03.05.15 at 12:24 pm }

I love the little obscure facts that you publish in this Farmers Almanac newsletter, such as the names of moons and other such interesting bits of knowledge.

8 Jodine Glover { 03.05.15 at 9:33 am }

I want to start planting flower seeds and plants. When would be the best time to start.

9 Rufus { 03.04.15 at 11:33 am }

Please consider turning Down the Music Volume. It Over Powers the Narration, which is the Reason for the Video.

10 Jaime McLeod { 03.17.14 at 6:53 am }

That really depends on where you live, Laura Knox. Talk to someone at your local greenhouse or agricultural extension office.

11 Laura Knox { 03.16.14 at 10:49 pm }

The full worm moon is the indication to start planting seeds indoors 6-8 weeks before last frost should be right now, but the sap isn’t running yet because of the cold winter, does this mean that sowing seeds around now (March 17) should be postponed a couple of weeks to coincide with the sap? Is the sap a good indication?

12 Dennis Fields { 03.16.14 at 7:04 pm }

Planting on moon cycles

13 Maryanne Johnson { 03.16.14 at 5:50 pm }

Information on planting during a full worm moon.

14 Estie Buzard { 04.10.13 at 3:08 pm }

I want to plant vegetable seeds and plant. I understand things grown under the ground, i.e. carrots, beets, should be planted during the dark of the moon. Things that grow above the ground. i.e. tomatoes, corn, etc. should be planted in the light of the moon. How can I find out when these times are or how they are identified on this website.

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