Kratky garlic greens

What garlic greens are

Garlic greens (sometimes sold as garlic shoots or garlic sprouts) are the young leaves that grow from a planted clove. Every clove already carries the stored food it needs for its first leaves, which is why a clove on a windowsill can sprout with nothing but water. You are harvesting those leaves long before the plant would ever make a bulb.

That matters for what to expect. A clove grown for greens will not turn into a new bulb, and it will not give leaves forever. Once its stored food is used up, regrowth slows and stops. Growing it the Kratky way, with nutrient solution instead of plain water, gives you sturdier roots and usually a second or third cut before the clove is spent.

Kratky garlic greens at a glance

First shoots	About 1 to 2 weeks, often sooner with fresh, firm cloves
First cut	About 2 to 3 weeks, when the shoots are several inches tall
Cuts per clove	Usually two or three before the clove is exhausted
Solution pH	6.0 to 6.5
Light	A bright window or a grow light for 12 to 14 hours a day
Container	A pint or quart jar with a net cup lid, or a shallow tray with a holder

How to grow garlic greens with the Kratky method

1. Pick firm cloves. Choose large, firm cloves with no soft spots or mold on the flat base. Organic garlic or seed garlic sprouts more reliably than conventional grocery garlic, which is often treated to stop sprouting (more in grocery store garlic in water).
2. Leave the papery skin on. Separate the cloves from the bulb but keep each clove’s skin. It protects the clove while the roots start.
3. Set the clove in a net cup, point up. The flat end, the basal plate, faces down. A little clay pebble, rockwool or coco around it keeps it upright.
4. Fill the jar so the solution just reaches the bottom of the net cup. The basal plate should be close to the liquid, but not sitting in it. Roots will find the water within days.
5. Use a mild nutrient solution. Mix a hydroponic nutrient at the label’s seedling or leafy-greens strength and adjust the pH to 6.0 to 6.5. Our Kratky garlic setup guide covers mixing and pH.
6. Let the level fall. Do not top the jar back up for a crop this short. The falling level opens the air gap that gives the roots oxygen.
7. Cut when the greens are several inches tall. Snip with scissors, leaving about an inch of shoot above the clove so it can regrow.

When and how to harvest

Cut garlic greens while they are tender. Growers describe the youngest shoots as mild and the older ones as tougher and more bitter, so it pays to cut early and often rather than waiting for the tallest possible leaves. A common approach is to take the top part of each shoot and leave the base to keep growing.

Expect the first cut to be the biggest. The second is usually smaller, and the third smaller again. When new shoots come up thin and pale, the clove has given what it can: compost it and start another jar. For a steady supply, start a new clove every week or two.

Using garlic greens in the kitchen

Use garlic greens anywhere you would use chives or scallions and want a gentle garlic note: scrambled eggs, mashed potatoes, soups, dumpling fillings, compound butter, or scattered over pizza and rice bowls. They lose their brightness with long cooking, so add them at the end. Rinse and use them fresh; they wilt within a few days in the fridge.

Common problems with garlic greens

• The clove goes soft or smells bad. It was sitting in the solution. Lower the level so the base is in the air, or start again with a fresh clove. See Kratky garlic problems.
• Nothing happens after two weeks. The garlic may have been treated with a sprout inhibitor, or it is very old. Try organic garlic or seed garlic.
• Greens are pale and floppy. Not enough light. Move the jar to the brightest window or put it under a grow light.
• Green film in the jar. Algae, from light reaching the solution. Wrap the jar or use an opaque container.

Greens, green garlic and scapes are not the same

Garlic greens come from a clove grown for a few weeks. Green garlic is a whole young plant pulled before it divides into cloves, and garlic scapes are the curling flower stalks of hardneck garlic. Our post garlic greens vs green garlic vs garlic scapes explains which ones you can grow in a jar.