Reproduction — Water-Soluble Calcium

What is Reproduction?

Reproduction is water-soluble calcium made from eggshells dissolved in natural vinegar. Where Structure builds the physical architecture, Reproduction triggers the reproductive transition: flowering, fruiting, and seed set. Calcium is not just a structural mineral — it is a signaling molecule that tells the plant conditions are favorable for reproduction.

What does it do?

Applied during the transition from vegetative to reproductive growth, Reproduction triggers flower bud initiation and improves fruit set. Farmers report larger fruit, more consistent sizing, improved flavor, and better seed viability. It also strengthens cell walls in developing fruit, extending shelf life.

How is it made?

Wash and dry the eggshells, then roast them in a pan over a low flame until the membrane burns off. They should not take on colour. Submerge in natural vinegar at a 1:10 ratio. The shells will bubble as acid reacts with calcium carbonate. Leave it about 7 days, until it stops bubbling and the shell stays on the bottom. Strain and store. Use at 1:1000, a little stronger (about 1:700–800) in rain or cloud before harvest.

Structure vs Reproduction

Both are calcium preparations. Structure (from bone) runs from seed to fruit. Reproduction (from eggshell) comes in at the changeover to flowering and stays through fruit and the last sprays before harvest, where it carries sugar into the fruit.