How to root fig cuttings in sand
Ficus carica. Rooting cuttings in a tote of sand
Rooting figs in coarse sand is cheap, it rarely rots, and one tree can give you twenty new plants. This is the method we use on the farm.
Ficus carica. Rooting cuttings in a tote of sand
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Figs are the easiest fruit tree on this farm to propagate. The usual reason cuttings fail is that potting mix stays too wet and they rot. Coarse sand drains better, so that is what we root them in: plastic totes of sand with gentle heat underneath. There are five steps.

Cut pieces six to eight inches long, each with at least three nodes. Use wood that is still green-brown rather than gray and corky. Strip off every leaf, and wear gloves, because the white sap reacts with sunlight and burns skin. Wash any sap off before you go back out in the sun. One round of pruning on a single tree gave us enough wood to fill two totes.

Coarse sand holds enough moisture for the cuttings to callus over and drains the rest away. To check it, squeeze a handful. It should hold its shape and leave your hand barely damp, with no water dripping out. Before each stem goes in, cut the bottom again just below a node, because that is where roots form.

Push each cutting in far enough to bury the bottom two nodes, then press the sand tight against the stem. Air pockets around a cutting will stop it from rooting. Cut the top of each stick flat and the bottom at an angle, so you can tell the ends apart and never plant one upside down.

The lid holds humidity around the cuttings. Leave one corner open so a little air still moves through. A heat mat under the tote, held at 75 to 80 °F, cuts the time to callus roughly in half. If the inside walls fog up, the humidity is right. Open the tote once a week, and throw out any cutting that has gone soft as soon as you notice it.

The cut ends callus over in about two weeks, and roots follow in three to six. Once the roots are an inch or two long, move each cutting into a pot of gritty mix and lower the humidity over about a week. Sand has no nutrients left to feed a rooted plant. After that it is an ordinary potted fig: give it sun and water, and bring it indoors for its first winter in Zone 6.
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Zones, cold-hardy cultivars, spacing, feeding, and where to buy one already rooted.
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