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Home » Growing Strawberries

Do Strawberry Plants Need Acidic Soil?

Modified: Feb 9, 2022 by Mr. Strawberry · This post may contain affiliate links · 15 Comments

Question: Do Strawberry Plants Need Acidic Soil?

Image of pHs cale on white background

Becky asked:

I read somewhere that strawberries have to have acidic soil. i’m planning on putting some in the garden this year but don’t have any experience with growing them. do strawberry plants need acidic soil? If so what do i need to do in order to help me grow a bunch of strawberries this year?

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Answer to: Do Strawberry Plants Need Acidic Soil?

Becky,
I’m glad you decided to take the plunge and plant some strawberry plants this year! Most strawberry varieties do need slightly acidic soil in order to produce optimally. If you don’t know the pH of your soil, there are a lot of fairly inexpensive testing devices or kits available out there. You can either get one or call your local Extension agency to send and agent out to test it for you. After you’ve tested it (or had it tested), if the pH reading is near 7 (or higher), you would do well to amend the soil to lower the pH and, thus, increase the acidity. There are several things you can do to increase the acidity of your soil.

Ph scale pushed in soil with hand holding soil

You can add coffee grounds to the soil. This can help slightly lower the pH. Also, in the “all-natural” realm, you can add citrus wastes like leftover orange juice or chopped up peels from lemons, limes, grapefruits, etc. Another easy and natural way to lower the pH is to mulch with pine needles. The needles will decompose and lower the pH as they do. This not only helps the plants, but it keeps the strawberries clean and decreases the likelihood of fungal/pathogen infection. Sphagnum peat will also add acidity as it breaks down, but the process is a slow one. Finally, another simple organic way to raise the soil acidity is to use diluted vinegar. Add some the next time you water, and the soil will usually show a pH drop when you next test it. Be careful to not do too much to lower the pH, though. You can make the soil inhospitable if the pH goes too low.

Other solutions can be utilized to acquire reduced alkalinity levels as well. Amending with ammonium sulfate will drop pH right away and increase the nitrogen levels. Granulated sulfur is also a suitable addition for increasing acidity, but it is also slower due to the fact that it has to be broken down by bacteria in the soil in order to lower pH. As with the more natural means mentioned above, it is important to carefully monitor the pH with the addition of these agents as well.

On an note different from increasing soil acidity, you may want to reconsider pushing your plants to grow a big harvest this year, if you plant in the spring. I’d recommend reviewing the material on the Growing Strawberries reference page to help you maximize your strawberry harvest for years to come. Good luck!

This is a question submitted to StrawberryPlants.org by a reader. See the Strawberry FAQ for more questions and answers.

Learn everything about growing strawberries from the Strawberry Master Manual, also don't forget to follow me on Pinterest and Facebook to stay updated with everything I post. We also have a Strawberry gardening group on Facebook! Feel free to join.

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Comments

  1. Garry

    March 22, 2025 at 6:03 pm

    I’ve heard a lot of people mention that you can use coffee grounds in order to increase the acidity of your soil. However, it’s my understanding that if you’ve brewed the coffee and are using those grounds, then there’s very little acid left in those grounds and they probably will not provide any benefit at all.

    Reply
    • Mary Ward

      March 26, 2025 at 4:37 pm

      This is exactly right. The only grounds that help are grounds that have not been brewed yet.

      That said, coffee grounds can be a good fertilizer and are good organic matter. But you don’t want to cover too completely as a top dressing because it can make a sort of barrier and make water run off.

      More on that topic here:
      https://gardening.org/19-top-tips-for-using-coffee-grounds-in-the-garden/

      Reply
  2. Ms Tony Love

    June 02, 2021 at 9:47 pm

    Can you grow strawberries seeds from strawberries that were soaked in vinegar.

    Reply
  3. Rouzbeh

    February 09, 2021 at 12:37 pm

    Hi Mr. Strawberry

    When we add nutrition, pH drops below 5.
    What if pH is lower than 5? How to bring up pH and what to add to the water in a hydroponic system.

    Regards
    Rouzbeh

    Reply
    • Thomas Flewell

      January 11, 2023 at 10:55 pm

      Most nutrients are available to strawberry plants between pH 5.7 – 7. The exception is Calcium. It becomes more available at pH above 8. The first thing to do for soil improvement is to add organic matter. And then add some more. This gives the soil a greater buffering capacity so pH effect is reduced. Greater soil microorganism activity, better soil structure and water holding capacity are additional important benefits. Sulfate of Ammonia helps. Be careful with adding sulfur. Once it is put on, it will remain for a long time. Too much can bring its own problems. The chart below shows nutrient availability throughout the pH range. Note that Fe, Zn and Cu will be deficient when grown in hi pH soils.
      https://www.pda.org.uk/wp/wp-content/uploads/2015/10/detailed-Truog-pH-chart.jpg

      Reply
  4. ecbound

    April 30, 2019 at 11:55 pm

    Mr. Strawberry, I sent some organic strawberry root bulbs to my 84 year old mother in another state, and 2 grow bags. I’m not there to help her gather all the things to create a good potting mix, and while she does shop, she gets tired with too much running around. CAN YOU RECOMMEND A GOOD ORGANIC POTTING MIX AND FERTILIZER FOR STRAWBERRIES THAT SHE CAN BUY AT THE STORE? If I have a name, I might even be able to buy it online and have it shipped to her. Thanks!

    Reply
  5. Bruce Anderson

    June 30, 2018 at 8:42 am

    Planted Strawberries last fall, in a raised bed that is located under the drip line of tall Spruce trees w/a South Sun exposure. Covered the bed with Straw but this Spring the Strawberries did not survive the winter. What you recommend be done if I want to plant “New” Strawberry plants for this year & beyond?

    Reply
  6. lorne

    June 10, 2018 at 11:54 am

    What do you know about using molasses to lower the PH of the soil , does molasses help with growing strawberries ?

    Reply
  7. Rex

    August 24, 2017 at 2:33 am

    a way to test the ph is to grow Stinging nettles and moss if both can’t grow itis best easy way to test it

    Reply
  8. Ade M Twombly

    May 20, 2017 at 10:52 am

    How much vinegar should put on my strawberry plants if my ph is 7.0? How do I apply it?

    Reply
    • Mr. Strawberry

      May 21, 2017 at 4:13 pm

      Ade M Twombly,
      You have to be very careful using vinegar to raise soil pH. The pH of vinegar is usually somewhere between 2.0 and 3.0, whereas strawberries don’t like a growing medium quite that acidic. If you use vinegar to raise soil pH, do it very slowly with frequent pH checks. Good luck!

      Reply
  9. Karen Stanek

    May 29, 2015 at 9:28 am

    We recently cut down a pine tree, and would like to know if the soil would be too acidic to grow my strawberries?

    Reply
    • Mr. Strawberry

      June 02, 2015 at 7:40 pm

      Karen Stanek,
      You could pH test it to be sure, but it should be great for growing strawberries!

      Reply
  10. Annie GIbbs

    December 09, 2014 at 1:42 pm

    when using coffee grounds, citrus wastes, or pine needles how many pounds of each product would you need per 100 square feet.

    Reply
    • Mr. Strawberry

      December 16, 2014 at 1:25 pm

      Annie GIbbs,
      It depends. The best way is to add your organic acidifiers little by little and check the pH on a monthly basis. Typically, however, it is hard to get the soil too acidic using topical applications of organic wastes. Good luck!

      Reply

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