pH Test Strip Kit

Regular price $21.95 Save $-21.95
82 in stock

rePotme now has pH Test Strip Kits in the exact range necessary for testing orchid water, fertilizing solution and mix. Convenient, easy to use, inexpensive and designed for providing the data you and your orchids need. With 15 feet of Test Strip per Kit (roll), you will have plenty to use again and again on multiple pots and over time.

Orchid growers typically want their plants to grow in the middle of that range, 5.5 to 6.0 for optimal orchid growth. The green color that will show on the Test Strip marking that range is easy to spot, not yellow and not blue, and the color comparison chart is right on the container for easy comparisons. Knowing pH is one of the most critical factors in successful growing because that gives you insight into the water and media makeup that your orchids live on. "Flying Blind" on these gauges makes no sense when you can simply look and see with our easy to use and inexpensive test kit.

The maintenance of optimal pH allows orchids to consume the nutrients that we give them. We mix fertilizer and water and hope to feed our orchids. Unfortunately, if the pH is too high or too low, the orchids will not be able to consume all the nutrients we are giving them in the fertilizer. This can result in nutrient deficiencies even as we are pouring nutrients on the plants! Types of water and fertilizer both have an effect on PH. So does the mix your plants are in. Our pH test strips are simple, accurate, low cost and with no calibration required.

There are two primary factors at play when it comes to PH, the pH of what is added to the pot (water, fertilizer) and the pH of the orchid mix. After orchid mix has been in a pot with an orchid for awhile there is a lot happening that can have an effect on the pH of the orchid mix. The orchid mix breaks down over time and that causes changes in PH. That is one reason repotting is so important for these beautiful plants. As fertilizer and water are regularly added to the mix, they have their own pH and they leave behind residue. Testing with our Kit can be done several ways and commercial growers of all types of crops, not just orchids, typically will test the pH of the mix in the pot every few weeks. One method we are particularly fond of is the "pour-thru" method since it does not involve disturbing tender orchid roots. About an hour after orchids have been watered, take a plant and pour nice clean water (distilled or RO) through it until a couple of ounces leak from the bottom of the pot. This water, called the "leachate" can then easily be tested for pH using the Test Kit Strip.

Each Kit has 15 feet of Test Strip and is smaller than a deck of cards. The paper is simply pulled out from the roll, torn off and is ready to use. Compare the color of your piece of strip after dipping it into the liquid you are testing to the chart right on the dispenser and you will know exactly what pH your plants are growing in!

At the end of the day it makes sense to keep both the pH of the fertilizing solution and the pH of the orchid mix within the optimal range for nutrient absorption. For most orchids we recommend a pH between 5.5 and 6.0. To lower PH, use Citric Acid. To raise pH use Lime or Oyster Shell. If the orchid mix pH is too high, micronutrient deficiency can occur. Conversely, if the pH of the orchid mix becomes too low, micronutrient toxicity can occur.

Store in a cool, dry place. Keep out of reach of children.


Yes! She is thrilled with the orchid mix and used it ALL the next day. She thinks it is excellent material and be sure we will be back with another order. She has been collecting orchids for 41 years and said it is the best mix she has ever seen.

Nancy G.

The potting medium you sent is gorgeous!! It's superior to the bark I've been buying at Lowe's. I can't imagine what (my orchids) will do when I put them in your potting mix. It even smells fresh!! Many, many thanks. I'll be ordering from you again.

Janie M.

I repotted it in the Imperial Monterey Orchid Mix that I had on hand, with a sad bloom or two still trying to hang on. Since then, it began growing new roots and leaves. The spike even began to grow/elongate, adding new buds, and rewarded me with 7 new blooms, the size of your palm. A testament that your products work wonders.

Cindy S.

Dear rePotme, Your Order arrived so fast! Once again, I believe that you have the best website, order system and delivery time of any and all internet services (and I am including Amazon, which is also terrific!). Thanks! Your products are first rate, the service is first rate and I am one satisfied customer!!!

Betsy M.

I LOVE EVERYTHING I BOUGHT FROM YOU GUYS! I'm your customer for life! When I first got my orchid mix I couldn't believe how nice it was! I've never seen such nice moss! I have suggested you to everyone I know that grows orchids. Your products are fabulous.

Jennifer B.

I don't even know where to begin! It is not often that a company impresses me the way yours has. Your commitment to customer service, education, quality, excellence, and integrity is evident in every detail - from the products, packaging, shipping, customer service, and the website and all its information. Please give my thanks and appreciation to everyone at!

Abby S.


I am relieved to have finally found an online retailer who actually reads and responds to customer inquiries in a timely manner...My first order from was placed, confirmed, assembled and shipped in less than 12 hours!!!!! Truly Amazing..

Toby P.

I received the potting mix and I have to say that it is wonderful!! I was skeptical to spend a little extra money for the bark mix when I can go to Lowe's and get it for a fraction of the price. But...your mix speaks for itself! So clean, nice and easy to work with. It's the best and I plan on buying for you all again and again. Thanks so much!!

Alicia S.

Since I had such success with that mix and the Paph mix, I have converted some of my Phals to the Imperial Mix...they are showing the same results. Strong growth, good roots and spikes. Your mixes are always fresh and distinctive. I have found nothing on the market like them and recommend them to all my orchid friends. Not sure what you put in them but keep it up.

Cindy B.