Gardening and Landscaping Stack Exchange
Gardening and Landscaping Stack Exchange

Questions tagged [ph]

pH is a numeric measure of how acidic or alkaline the soil or other growing medium is. Acidic soils have low pH and alkaline soils have high pH. Use this tag for questions about measuring or adjusting the pH of your soil.

Related tags:

  • for other questions about changing the soil composition.

External links:

  • Wikipedia on pH
55 questions
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Acidifying water for acid-loving seedlings: Calculating the best bang-for-the-buck

I have water that is at a pH of 8.0. I want to acidify the water to a pH of 4.0 (for the purpose of watering acid-loving seedlings). I have two products that I can use to acidify the water: Lemon Juice: $12.47 * 13% tax = $14.09 per…
User1974
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What are the cons of using aluminum sulfate and elemental sulfur as soil acidifiers?

I have a slightly high pH, 7.2. Nothing bad but I would like to bring it down a little. I was looking at two elements/products whatever you want to call them. One was Aluminum Sulfate and the other was Sulfur. The things I know is it does not take…
Ljk2000
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Blueberries in concrete block bed

I am getting ready to upgrade my aging and rotting wooden raised beds to ones made from 8x8x16 hollow concrete block (Concrete Masonry Units). As I understand it, the lime in the concrete can leach out over time and increase the soil pH, making it…
William S.
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Is Coca Cola bad for Nightshades and curcubits?

A bit of a whimsical question, but I'm curious nonetheless. Phosphoric acid (E338) - the stuff used to make coca cola tart/sour and useable as a cleaner is also used commercially to make soil more acidic for growing nightshades and curcubits. This…
davidgo
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Jubilee blueberry's leaves are browning

I potted a Jubilee Blueberry plant 2 weeks ago. The leaves have started to brown this week. The same thing happened to my Spartan Blueberry plant. That one completely browned up and died. How do I prevent my Jubilee from dying too? Soil PH appears…
JoJo
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Do Citrus potted plants need acidic soil

Does Citrus Plants growing in pots, need slightly acidic soil? I am thinking of the jasmine plant that requires, 1 teaspoon of vinegar, mixed with water, approx every 15 days, particularly during flowering season. Should I do the same for other…
Mridula Srivastava
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Planting moderately acidophilic plant under the rain downspout

I bought a couple of slightly acidophilic plants, and my soil is neutral, and also I don't like to use any chemicals. Would it be a good idea to plant them at the base of rain downspout? (The plants like lots of water, so wetness won't be a problem)
VividD
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Blueberry bush not looking very lively

I have been growing a blueberry bushes and am not sure that I am having much success. The plant doesn't appear to have done much since it was planted and just appears to be slowly loosing leaves and flowers. Would anyone have any recommendations?…
user16579
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Increase pH value of already planted soil in a balcony flower box?

Two days ago I had soil of pH 5.5. I impatiently planted my lavender and now I'm worried because lavender needs a pH of 6.5 to 7.5. I did mix the soil with about 1/4 (volume) of quartz sand and some small stones, but I guess that only avoids the…
Dave
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How crucial is it to measure pH of hydroponic growth solution for leafy greens?

I was told I need to continuously measure the pH of my growth solution and modify it if it exceeds a certain range. Is it really that crucial? I mean no one pays attention to pH of soil in a pot... If it is crucial, would once a day with litmus…
Sparkler
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Tomato plant discolored and dried out

I have a home garden with tomatoes and peppers. The peppers grow great every year, but often the tomatoes end up discolored with dried out leaves. I recently did a Manutec pH test on the soil and it came up as 8, so I added some sulfur to the…
Brian
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Least expensive way to prevent high pH leaching into blueberry root zone

I live in a region of the upper midwest where we have high-pH soil; my soil's pH varies between 6.8 and 7.5. Accordingly, our extension office recommends planting blueberries in buried containers with 0% native soil in the mix. But researching pots…
Paul W
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Mistake - should have used ericaceous compost

I repotted a camellia yesterday but used multi purpose compost by mistake. That compost is on the bottom, but I used rotted manure around the root ball. What should I do?
Heimdall
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Aquaponic ph level for different plants

I'm wondering how much does water ph level matter for plant healthy growth as an aquaponic system would presumably have one ph level for all growing plants and as far as I understand and find on the Internet, different plants have different…
kr3t3n
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Help me decide in a location for my raised bed garden

I'm building a 6x3 raised bed in my brooklyn ny backyard however, i wanted to know if i set it up at the left side it would be half under a mulberry/blackberry tree and the right side it would be in full sun but no berries falling on it. So my…
Joseph Wit
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