Landscaping

  1. Home
  2. Home & Garden
  3. Landscaping
photo of David Beaulieu

David's Landscaping Blog

By David Beaulieu, About.com Guide to Landscaping since 2002

Garden Word of the Day - Alkaline

Saturday July 5, 2003
Soil pH is a major factor in successful home landscaping. Some plants like acidic soils, while others need alkaline soils if they are to thrive. Overly acidic soils can be corrected using lime (the dust, not the fruit!). Soils that are too alkaline for what you wish to grow can be corrected with fertilizers containing ammonium-N. Many commercial fertilizers made for acid-loving plants (e.g., azaleas and blueberries) will do the trick just fine.

Novices in landscaping often overlook the importance of growing plants in soil with a pH suitable for them. Are your plants not performing well? Do they mysteriously just sit there, failing to grow as you expected them to? Maybe you need to realize that alkaline has nothing to do with Al Kaline, the Hall of Fame Outfielder for the Detroit Tigers!

Comments

July 13, 2007 at 1:17 pm
(1) ray says:

.. this is very true, im studying landscape design and, i ran a test on soil for a new mixed herbaceous and shrub border and its result was an alkaline soil. also the soil has received heavy rainfall and is clearly a clay soil type, so we have a clay-type, alkaline ph soil, are alkaline plants generally clay tolerant?

July 13, 2007 at 1:23 pm
(2) landscaping says:

As far as I know, the fact that a soil is alkaline and the fact that it is clayey are two separate issues. That is, you’ll have to deal with soil pH issues separately from any issues regarding how clayey your soil is.

April 22, 2009 at 11:08 am
(3) Lore says:

Our flower beds tested 7 – 8 Alkaline (Semi-Moist) with varying degrees of sun (full to partial) and have lots of top soil, mulch, etc.,

Is there a list of trees, perenials & annuals that like alkaline soil?

Thank you for your suggestions.

Lore

April 26, 2009 at 2:24 pm
(4) landscaping says:

Lore,

Here’s one list of plants that enjoy alkaline soil:

GardenHelper.com

You can easily find others by Googling “plants alkaline soil list” (or if you want trees, specifically, substitute “trees” for “plants”).

Leave a Comment

Line and paragraph breaks are automatic. Some HTML allowed: <a href="" title="">, <b>, <i>, <strike>

Discuss

Community Forum

Explore Landscaping

About.com Special Features

Green Your Clean

Rid your home of grime and harsh chemicals by cleaning with these natural items. More >

Basic Cleaning Supplies

Every home is different, but this basic cleaning supply list is a good starting point. More >

Landscaping

  1. Home
  2. Home & Garden
  3. Landscaping

©2009 About.com, a part of The New York Times Company.

All rights reserved.