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Below are photos of our sheet mulching project on Carlson Blvd, Richmond Annex!

 

 

 

 

 

 

 

 

 

Located between San Pablo Avenue/El Cerrito to the east, Carlson Boulevard is the main thoroughfare through what is referred to as the the annex, connecting downtown Richmond with downtown El Cerrito.

Some sheet mulching basics if you want to try yourself:

It is great for very weedy areas.  Sheet mulching helps soil hold moisture and does not require digging the soil.

Trim any plants close to the ground.  If your soil is heavily compacted, poke holes every foot or so to a depth of 6-12 inches.

Next

Soak the area well with a garden hose.

Add a layer of grass clippings, manure or compost  just to about 1 inch.

Add sheet mulching – this can be a layer of newspaper or corrugated cardboard overlapping sheets by a minimum of 6 inches.  Layers ensure that weeds or grass will not grow through.

Soak

 

 

 

 

 

 

 

 

Next, add a 1 inch layer of green materials; straw, leaves, tiny branches and soak thoroughly.  Adding another layer of compost will ensure you are introducing enough beneficial bacteria, fungi and other microbes into the sheet mulch.  These beneficial bacteria are what will restore the health of your soil.

 

 

 

 

 

 

 

 

 

A note about the materials we used – corrugated cardboard.

We receive calls from many people throughout the San Francisco Bay Area who have poor soil.  It happens enough that we thought people might be interested to know more about the process of rebuilding.

If you have the following problems chances are poor soil is the culprit:

  • Soil is cracked and dried in the summer
  • Digging holes is difficult whether or not it is wet or dry
  • Water tends to pool on the surface, then drains very slowly or runs off the surface.
  • Leaves are yellow and have brown dead sections

Much of the above symptoms are due to a lack of organic matter.  Look at the color of your soil.  It will be dark if it has enough humus.  Humus is the foundation of healthy soil and is formed by decomposition of plants, leaves or animal matter and provides nutrients for plants.

Below are tips on how to rebuild your soil.  They are also part of our LivingSolutions organic landscape management program.  It’s a comprehensive sustainable approach to landscape management.  For more information about our program, see our website:

Mulch

Tree service mulch is free, attractive and provides organic matter.  It is made from the branches and brush which are run through a grinding machine and chipped into small wood chips.  This will gradually break down and add nutrients to the soil helping it to hold more water, reverse compaction, slow erosion and reduce weed growth.

Compost

Purchase it or make it with kitchen scraps and yard trimmings.  Avoid meat, eggs or dairy.  Apply compost with the least disturbance, on top of soil.  The compost will improve soil structure and increase its ability to hold moisture.

Organic Soil Amendments

We recommend using 100% worm castings as a top dressing.  Worm castings are

Poor Soil

odorless and have the appearance of coffee grounds.  They impart a slow release of nutrients to the soil, increase its water holding capacity and immunity to disease.

Compost Tea

It’s a liquid microbial inoculant which provides essential nutrients to the soil.  It is rich in plant extracts and sea kelp.  Compost tea also reduces germination time, promotes vigorous growth and increase drought resistance.  It can be sprayed directly on plants or on soil.

Avoid Excessive Digging

Good Soil

Every time soil is disturbed through digging or excessive foot traffic it damages the delicate soil structure.  This limits a plant’s roots access to nutrients, air and water.

Limit of Eliminate the use of Pesticides or Synthetic Fertilizers

Synthetic fertilizers will help keep plants green and blooming but only a small percentage is actually used by the plants.  They can leach from the soil into ground water.  They feed the plant, not soil and the nutrients are insufficient over the long term.

If you keep up this practice you will start noticing that your plants look healthier and have more vitality.