Q&A for How to Grow Garlic

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  • Question
    The tips of the leaves on several of my garlic plants have turned yellow so I dug one up but it didn't have any separate cloves and didn't seem to be fully grown. What am I doing wrong?
    Andrew Carberry, MPH
    Food Systems Expert
    Andrew Carberry is a Food Systems Expert and the Senior Program Associate at the Wallace Center at Winrock International in Little Rock, Arkansas. He has worked in food systems since 2008 and has experience working on farm-to-school projects, food safety programs, and working with local and state coalitions in Arkansas. He is a graduate of the College of William and Mary and holds a Masters degree in public health and nutrition from the University of Tennessee.
    Food Systems Expert
    Expert Answer
    The tips may have turned yellow from under-watering or some other reason. Wait until the entire plant has changed color to harvest. If the bulbs are still small, conduct a soil test to see if you have the proper amount of nutrients to support growth.
  • Question
    If I plant my garlic without mulch will it die?
    Andrew Carberry, MPH
    Food Systems Expert
    Andrew Carberry is a Food Systems Expert and the Senior Program Associate at the Wallace Center at Winrock International in Little Rock, Arkansas. He has worked in food systems since 2008 and has experience working on farm-to-school projects, food safety programs, and working with local and state coalitions in Arkansas. He is a graduate of the College of William and Mary and holds a Masters degree in public health and nutrition from the University of Tennessee.
    Food Systems Expert
    Expert Answer
    Mulch helps to keep the young shoots from freezing during the winter, and helps keep the soil cool and moist in the summer. It may not die, but the plants will produce smaller and fewer bulbs without mulch.
  • Question
    Can one cut, rather than pull, a few scapes to eat?
    Andrew Carberry, MPH
    Food Systems Expert
    Andrew Carberry is a Food Systems Expert and the Senior Program Associate at the Wallace Center at Winrock International in Little Rock, Arkansas. He has worked in food systems since 2008 and has experience working on farm-to-school projects, food safety programs, and working with local and state coalitions in Arkansas. He is a graduate of the College of William and Mary and holds a Masters degree in public health and nutrition from the University of Tennessee.
    Food Systems Expert
    Expert Answer
    Yes, scapes can be cut from the plant to eat. It is best to cut a few of the small, tender scapes. Do not continually cut the same plant or you will compromise the bulb growth below ground.
  • Question
    I want to grow garlic in planters. How deep does the soil need to be?
    wikiHow Staff Editor
    Staff Answer
    This answer was written by one of our trained team of researchers who validated it for accuracy and comprehensiveness.
    wikiHow Staff Editor
    Staff Answer
    Use a planter that's at least 8 inches deep so your garlic has enough room to grow roots.
  • Question
    How many weeks ahead of harvest do I stop watering the garlic?
    wikiHow Staff Editor
    Staff Answer
    This answer was written by one of our trained team of researchers who validated it for accuracy and comprehensiveness.
    wikiHow Staff Editor
    Staff Answer
    Stop watering your garlic about 2–4 weeks before you plan on harvesting them.
  • Question
    Can I grow my garlic from a clove from the store?
    wikiHow Staff Editor
    Staff Answer
    This answer was written by one of our trained team of researchers who validated it for accuracy and comprehensiveness.
    wikiHow Staff Editor
    Staff Answer
    Garlic is best grown from bulbs purchased from a garden center, nursery or online garden seed supplier. Store varieties will not have been transported or stored with regrowing it in mind, and many are sprayed with an anti-sprouting chemical.
  • Question
    How do you store garlic?
    wikiHow Staff Editor
    Staff Answer
    This answer was written by one of our trained team of researchers who validated it for accuracy and comprehensiveness.
    wikiHow Staff Editor
    Staff Answer
    Garlic can be stored fresh for a short time and for a long time dried. For more information on storing garlic, check out the full details in this wikiHow: How to Store Garlic .
  • Question
    When can I harvest garlic?
    wikiHow Staff Editor
    Staff Answer
    This answer was written by one of our trained team of researchers who validated it for accuracy and comprehensiveness.
    wikiHow Staff Editor
    Staff Answer
    The bulbs can be harvested when the garlic leaves have turned yellow and look like they're dying off.
  • Question
    Is there a garlic that has really big cloves?
    wikiHow Staff Editor
    Staff Answer
    This answer was written by one of our trained team of researchers who validated it for accuracy and comprehensiveness.
    wikiHow Staff Editor
    Staff Answer
    Yes, there is a variety of garlic known as elephant garlic. True to its name, it has extra large cloves.
  • Question
    I'm unable to harvest the garlic properly. When I pull it out from the soil it doesn't pick up the bulb. What should I do?
    Amy Harrison
    Top Answerer
    Loosen the soil/dirt up around the bulb or simply dig the garlic up instead of pulling it up from the stem.
  • Question
    A round bulb like thing grows at the top of the garlic stalk. Should this be cut off or let alone?
    Community Answer
    The bulb like thing is called a scape, most hard necked varieties of garlic produce these. It is the garlics flowering pod which contains many seeds or bulbils. Some people pick them off and eat them finding them to have a delightful flavor. However, picking them is not suggested as some varieties actually produce much larger garlic bulbs if the scapes are left untouched. In addition, you may wish to leave some of the garlic plants in the ground longer than your usual harvest time. The scapes will at some point burst open and you can collect the seeds to use as starters for a new crop of garlic.
  • Question
    How long do they take to grow?
    Community Answer
    About 6 months.
  • Question
    How long does it take to roast garlic?
    Community Answer
    Brush with olive oil, sprinkle with salt and pepper then roast in a clay pot for 40-45 minutes at 350ºF.
  • Question
    Can you plant garlic in a planter in the house?
    Community Answer
    Yes, you can. Make sure that the planter is near a window and the temperature does not fluctuate drastically.
  • Question
    Last year I got some big garlic. Just one big one. No cloves.
    Community Answer
    It's possible that the garlic you bought was sprayed with anti-rooting chemicals, which may have let the leaves sprout but no bulb develop. If you just got one bulb without cloves, consider that you harvested it too early, before cloves could develop. It will still be edible, just no cloves.
  • Question
    How long after planting will I see something break through the ground?
    Community Answer
    You should have sprouts in about 4 weeks.
  • Question
    Can I grow garlic in a pot?
    Community Answer
    Yes, as long as the pot is big enough.
  • Question
    Is it right to remove the garlic flower head before it opens?
    Community Answer
    Yes. Scapes (flowers) only appear on hardneck varieties and can be eaten and used much like a chive or green onion would be. Cutting them back at the right time can help the plant send more energy into the bulb, resulting in a larger head.
  • Question
    Should the cloves be peeled before planting?
    Community Answer
    No, definitely not. Just carefully split the cloves from the head and plant them the right way up.
  • Question
    Does garlic really kill parasites?
    Community Answer
    There's decent evidence that eating garlic can help against some parasites and bacteria. The active ingredient (allicin) only appears in fresh, raw garlic that's been crushed, chopped, or chewed. Aged or cooked garlic will not have much effect.
  • Question
    When I plant garlic in the fall, do I water it after planting and before it freezes outside?
    Community Answer
    Garlic needs moist, not soggy soil to grow. Here, in the coastal hills of northern California, the ground doesn't freeze in any but the historically cold spells, but it is frequently wet from rain. So I grow my garlic in raised beds and irrigate when necessary. Because of the likelihood of very wet periods, I don't apply mulch. Hardneck varieties seem to do very well here. As with most everything in the garden, you need to use some common sense and adjust the "rules" to fit the situation.
  • Question
    We have some small plants. Should we dig them out or leave them in the ground until next year?
    Community Answer
    Leave them for the following year.
  • Question
    Do I have to use rotted mulch?
    Community Answer
    Not necessarily. All mulches are said to work with the same efficiency. One recommendation is using rotted grass clippings though, as these seem to be especially good for garlic.
  • Question
    Will cutting the first growth of leaves help improve clove size?
    Community Answer
    No, cutting the first growth of leaves will not help. To get bigger cloves, you need to plant the biggest garlic pieces. Use 10-10-10 fertilizer after planting to help promote growth.
  • Question
    I have seeds on the top of the plant, do I need to remove them?
    Community Answer
    You can leave them on and the garlic at the root will grow bigger. If you harvest them just before they actually turn to a flower you can use them to plant the next crop.
  • Question
    I've heard it's best to mulch after the ground has frozen, so rodents don't choose your mulch as winter homes. Will this work for garlic?
    Community Answer
    Yes, but get the mulch in place before a sudden change in temperature or a major snowfall. If you plant early and don't use mulch, some shoots may appear and die when the freeze hits. This is not ideal, but the garlic will probably survive.
  • Question
    If garlic is planted in the autumn, how do I care for it over the winter months to protect against frost?
    Community Answer
    Lay thick mulch over top. I live in a place that gets down to -40 in the winter. I plant the garlic in the fall about 2 inches under the soil. Then I mulch with straw or wood chip mulch - about 9-12 inches. In the spring I leave the mulch in place and the garlic comes up through the mulch. I have been doing this method of planting for about 10 years with success.
  • Question
    Can I plant garlic in the same area multiple times?
    Community Answer
    No. Crop rotation is advisable to prevent pests and diseases, and to let the ground get its nutrients back.
  • Question
    How long does this take from planting to harvest?
    Community Answer
    It should take about six months. Plant before the shortest day, and harvest around the longest day.
  • Question
    Can garlic be grown in hydroponics?
    Community Answer
    Yes, though I am unsure about whether this will yield more cloves. Place a whole clove in enough water to cover a third of it and put it in the window sill (or somewhere else that gets consistent light and stays about the same temperature.)
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