Core gardening sounds to me like a great idea and like everyone should be using the method, but I have never tried it. Please share with any advice or personal experiences.... this is my scenario
Structure: Small raised bed 4ft by 4ft by 12in
Soil: mels mix from square foot gardening. 1/3 peat moss, 1/3 vermiculite, and 1/3 multiple varieties of compost
Plan to grow: sweet corn. Pole beans on the perimeter and use the corn stalks as trellis.
Core plan: dig 1ft deep trench in center of the bed along the entire length and fill with 4 or 5 inches of fresh straw and cover with soil mix. The idea is that the straw will absorb water like a sponge and distribute to plants up to 2 ft across on each side of the trench.
Concerns- is this for certain pants only? When do I know to water? Will this rot my roots? Is it necessary? Etc... I am in zone 6a
Any advice/feedback is very much appreciated
Peace