Growing with the moon
The Moon has a roughly elliptical orbit so the gravitational pull varies throughout its 28 day cycle.
Root growth is improved when the Moon moves further away causing a decreased pull on the Earth and vice versa – this force also causes the ocean tides.
New Moon Waxing Moon Full Moon Waning Moon
Roots and Shoots enhanced Roots rest, Foliage grows Roots develop, Foliage slows Roots and Foliage rest