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Soil Testing, Water Testing & Plant Tissue Testing

Wallace Laboratories has many years of experience in assisting farmers, professional landscaping companies and home owners produce better gardens and improving landscape by analyzing soils, plant tissues and water.

Wallace Laboratories’ agronomic soil analysis not only includes pH, salinity, the concentration of soluble salts, and sodium but also for all 14 essential nutrients and over a dozen toxic metals including arsenic, cadmium, lead, and mercury at no extra cost. Recommendations and interpretations are also provided with the report. Plant Tissues are analyzed to optimize the growing conditions and to fine tune your landscaping site.

Complete Green Company

PAM (polyacrylamide) is a soil conditioner used to improve soil structure which increases the plants capacity to grow. Click here for more information.

EDDHA, free acid is available from Complete Green Company.
(EDDHA – Ethylenediamine-di-o-hydroxyphenylacetic acid)
Call or email for pricing and availability.


Help Improve your soils today

Submit your Soil Samples

how to submit samples

Wallace Laboratories News

Current news updates

Rick W.

Fantastic service with super quick response and turnaround. Amazing knowledge and ability to provide guidance, the best I know of.

Jonathan M.

Excellent knowledge base, great service.

Rob V.
Los Angeles, CA

Lifesaving operation, literally, with tender concise professional support for novice customers.

Bob T.
Castaic, CA

A true family run organization with the experience, equipment and technical knowledge to give accurate results on a timetable suitable to the customer.  (Speed is just a question of money, as the saying goes) They take the time to explain results and also to figure out the correct test procedure, based upon what is needed…

Heather V.
Arroyo Grande, CA

Wallace Labs is the very best choice for soil testing in the USA.  We are so lucky to have such talented and dedicated professionals here in California to help us with our soil nutrition issues.  We have worked with them for years and find both Garn and John to be very knowledgeable and helpful every step of the way, for us and for our clients too.  I would give them a solid 5 stars without hesitation!

Bill B.

Excellent experience with Wallace Labs. Our 1 yr old son tested for high levels of lead due to some old sports turf we had in our backyard. Before we brought in new, safe material we needed to be assured that the underlying soil was not contaminated. I dropped off our sample to John at 4:45 pm on Thursday and we had the full panel results emailed to us by 9:08am on Monday.
The report was detailed and easy to understand, we are grateful for their expertise and quick turnaround time. We highly recommend Wallace Labs.

E T.

What an AMAZING resource. Highly recommend. Your peace of mind about the soil you’re using for your edible plants is worth every penny.

Nedra G.

Such kind service. I appreciate their service.


365 Coral Circle
El Segundo, CA 90245
United States


Phone: +1 310-615-0116
Toll Free: +1 800-GREEN-99
Fax: +1 310-640-6863

hours of OPERATION

Mon-Fri: 8AM – 5PM
Saturday: Closed
Sunday: Closed

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