Tu BiShvat (Hebrew for the 15th day of the Hebrew month of Shvat) is the new year of the trees.
Tu BiShvat, called the "New Year of the Trees," falls at a seemingly incongruous time of year.
Tu BiShvat is a minor festival whose provenance dates only to the time of the Second Temple. However, the kabbalists who clustered around the great fifteenth-century mystic Isaac Luria of Safed placed great weight on the holiday, creating new festivities, gatherings at which hymns were sung, fruit (particularly carob) was eaten, and four cups of wine were taken (as in the Passover seder).
The arid desert shall be glad, the wilderness shall rejoice and shall blossom like a rose. It shall blossom abundantly; it shall also exult and shout. It shall receive the glory of Lebanon, the splendor of Carmel and Sharon...
How can a young man keep his way pure? By holding to Your word. I have turned to You with all my heart; do not let me stray from your commandments.
...There was a great and mighty wind, splitting mountains and shattering rocks by the power of the Lord; but the Lord was not in the wind. After the wind - an earthquake; but the Lord was not in the earthquake. After the earthquake - fire; but the Lord was not in the fire.
You shall make no covenant with them and their gods. They shall not remain in your land, lest they cause you to sin against Me; for you will serve their gods - and it will prove a snare to you.