With the moon in the last quarter, in the sign of Scorpio on March 13th and 14th, it is an excellent time to start building a new compost heap.
Scorpio is a water sign, so this is a good time to sow Leaf plants like cabbage, celeriac, celery (doctrine of signatures here, since celery regulates the water/sodium balance in the body), dill, lettuce, and spinach to name a few.
If you are putting a a rhubarb patch, this would be a good time to plant them too.
This is not e a good time to sow fruiting plants, including the fruiting vegetables, like tomatoes, eggplant, cucumbers, etc.