On the 26th of December there is a Hellenic festival (from the Attic/Athenian calendar) by the name of Haloa (aka Thalysia/Syncomesteria) in honor of the Halos. Halos translated from the Greek, means threshing floor/garden.
The Haloa was a festival day dedicated to Demeter, Dionysos, Haloa, Poseidon, Phytalmios and Perseophone.
Most likely a fertility festival, this festival related to the fist harvest and the fruits of the earth. Celebrations included feasts at Eleusis and *offerings of cakes in the shapes of genitals were made along with music and merriment. Women would dance around a symbolic phallus and leave offerings whilst its speculated that men would of had similar yet separate festivals honoring Poseidon.
This is an auspicious time to start projects related to fertility.
*Exclude offerings of forbidden Elusian Mysteries foods: fish, chicken, pomegranate, apple and eggs.
Homeric Hymn to Demeter which you can use on the day when leaving offerings of stone fruit and grains as she is the protectress of the earth:
(C) T. Georgitsis 2016