Tree Secret® Tree Fertilizer

Name: Tree Secret® Tree Fertilizer
Brand: Dr Jimz
SKU: 3
Price: 34.95 USD
Availability: InStock
Rating: 4.9 (1441 reviews)

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$34.95

Feed Your Trees... and Create A Lush Paradise Around The Yard!

Tree Secret® tree fertilizer formerly known as Save-A-Tree is a biologically correct (non-synthetic) fertilizer that has been created specifically for enhanced tree success. Our small batch, extra potent blend of readily available tree nutrients are exactly what your trees, plants, and bushes need to revitalize and look great for years to come. The competition doesn't come close!

Nitrogen found in most chemical lawn fertilizer is largely responsible for the unnatural rapid growth that weakens trees by thinning their protective cell walls; this opens the door for disease, wind damage, and bug infestations...

Plants and bushes need the same nutrition as slow growing trees. Give your yard a serving of this ultra potent, undiluted, carbon based fertilizer and watch in amazement as your trees thrive and your landscape transforms into a lush paradise.

Excellent results on all trees, bushes, and evergreens! Use 2 times per year to save a dying tree and 1 time per year to maintain good tree health.

Happy trees have less problems. This stuff works.

Save 10% on cases of 6 or more jugs

Buy 64 ounce Tree Secret® Today! Freight Paid To All US States.

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Why Buy Tree Secret® Tree Fertilizer

Forty years of experimentation lead to the product we now call Tree Secret®; this one of a kind tree fertilizer is a fermented blend of over 60 pure ingredients that create a special nutrient cluster which allow the tree to more easily absorb the vital nutrients needed to be high quality, strong, and problem free.....applying Tree Secret® is very similar to the process we see in nature when a tree feeds on the nutrients from composted leaves found on the forest floor.

When you apply Tree Secret® vitamins for trees you are doing much more than tree fertilizing; you are feeding it all the nutrition that the tree needs to be happy from the roots on up. Tests by microbiologists at Boise State University showed that 24 hours after tree fertilizing with Dr. JimZ®, there was an increase of 70 percent in beneficial bacteria in the soil. After a week, there was a 400 percent increase. This organic matter in the soil sets the stage for solid trees with beautiful color that yield increased amounts of delicious fruit.

We call our nutrients Biologically Correct because they are designed to stimulate microbial life in the soil and supply nutrients at a biological level. When your trees recieve nutrients at a biological level everything improves!

Traditional nutrients for trees are aimed at quick growth. “You can force-feed a plant by applying high doses of water-soluble fertilizer, and get a 10-foot tall rose bush. But the quality of the roses may not be what you want. Plants like roses may become more susceptible to aphids, because rapid growth means thin cell walls, and it is easier for the aphids to attack. Today's organic gardeners understand this.” - Jos Zamzow

The solution to weak trees and over-fertilized bushes is to feed them with the proper nutrient clusters they need to heal themselves and strengthen their immune system (yes, trees and bushes have immune systems too). So, if your trees and bushes look like they could use a little help, or if you just want to make your beautiful yard even more stunning.... there is nothing better than Tree Secret® nutrients for trees. This is mother natures premium cocktail for extraordinary results!

The story of Tree Secret® began more than 20 years ago when Boise nursery owner Jim Zamzow, whose friends affectionately dubbed him “Dr. Jim” because of his constant experimentation, started giving customers at his Idaho nursery a brown liquid organic fertilizer in used two-liter soda bottles.

Tree Secret was so successful, especially for growing fruit trees and improving soil in the vegetable garden, that customers soon had to bring their own bottles if they wanted more of the nutrient rich super fertilizer. By mid-summer the 55-gallon drum that contained the experimental batch of vitamins for trees was empty.

Last year customers bought more than 90,000 gallons of Tree Secret®... .and we have now officially sold over 1 million units. We feel good that we have been able to help so many people with tree nutrients over the years. It is our goal to help make the world a better place by providing the best possible alternative to chemical fertilizer.

Use in your yard for stronger trees, robust bushes, and beautiful perennials! Use in your garden for big, delicious fruits and vegetables!

Instantly transform from Hobby Gardener To Master Gardener, Feed Your Trees and be the Envy of the Neighborhood!

Buy Tree Secret® Tree Fertilizer Today!

Lived Up To The Hype!

"The internet is full of miracle tree tonics and liquid fertilizers that promise to promote rapid growth, root system expansion, and improve tree health. Dr. JimZ’s Tree Secret actually does this.I initially bought it as a last-ditch effort to save a Japanese Cedar that suffered from a great deal of browning anddying foliage over the winter.I was nervous about using fertilizer to promote rapid growth on a weakened tree. I was impressed with the idea of an undiluted, biologically correct, organic tree fertilizer that focused on providing nutrients for long-lasting tree health.After a few weeks, I was so impressed with the results that I bought two more gallons.I’ve so far used it on six trees with great results, but none so dramatic as the initial Japanese Cedar. I've already bought sevenmore gallons for fertilizationthisfall and make this a regular part of my tree maintenance for struggling tree or those where I’m seeking to promote long-term growth beyond what I feel traditional fertilizers can provide.Tip: I’ve found out through as support email that using Tree Secret once a year is good to promote growth, while doing so twice a year (in Spring and Fall) is ideal to save a weakened tree." - Alexander A.

Tree Secret Helped Grow A Thick Tree Barrier IN Backyard

Remarkable Growth!

"I got these trees green giant arborvities put in back in 2018. I started using the Tree Secret fall of 2019. By spring of 2020 I could see the results. The last picture is spring of 2022 after using the Tree Secret every early fall. By spring time every year I see remarkable growth. My trees are a barrier because there's a house right behind me. When I go into the yard now the neighbors behind me can't see me. The landscaper recently put in trees on the side of my yard. They are quite small. He said whatever you did for those trees in the back, do for these!" -Troy T.

Liquid Fertilizer feeds organic apples - picture of organic apples

Beautiful organic plums - Dr Jimz save a dying tree - Fertilized with Tree Secret

Picture of grapes on a vine - all natural and organic - Dr JimZ Fertilizer

What Makes Us Different?

The majority of well-known fertilizer companies use chemical based ingredients (nitrogen) that tends to “burn out” the soil; depleting it of important nutrients needed to grow happy, problem free plants, trees, and lawns.

Our products are biologically correct and made with ingredients that will enrich your soil with the necessary carbon and trace minerals needed for optimum growth, overall plant success, color, and exceptional taste.

With Dr. JimZ® you can expect to yield more fruits and vegetables that have less problems, a longer shelf life, and taste the way mother earth intended. Our products are perfect for gardeners, farmer, & growers. Full Money Back Guarantee.

Overall rating: 4.8536754 / 5 from 1442 reviews.

AI Generated Review Summary

Tree Secret® Tree Fertilizer revitalizes trees, plants, and bushes, leading to lush growth and healthier appearance. Customers report significant improvements in tree health and foliage vibrancy, with noticeable differences in tree and shrub appearance.

Summary topics

Tree Growth (7%): Customers loved the new growth in their trees and plants after using Tree Secret®.
Tree Appearance (14%): Customers appreciated that their trees look amazing and healthier after using Tree Secret® fertilizer.
Noticeable Difference (3%): Customers expressed appreciation for the noticeable difference in health and appearance of their trees and shrubs.
Product Results (11%): Customers loved the amazing and great results they achieved with the product, which was easy to apply and guarantee good results.
Tree Health (34%): Many customers loved the Tree Secret® for its ability to bring their trees back to life and healthy growth.

Review topics: ["color","shipping","feel","problem","look","results","improvement","price","customer service","summer","weather","use","instructions","water","trees","fertilizer","growth","leaves","plants","difference","change","foliage","bushes","branches","application","evergreens","work","fall","shrubs","food"].

Review highlights

"Great product, trees and shrubs, beautiful full foliage, even the “ elder” trees are happy!" — Carol H.
"Tree Secret was easy to mix and use, and has our young arbor vitae and maple trees looking great!" — Thomas S.
"My fruit trees are looking beautiful and strong and they all have the biggest crop of fruit that they have ever had." — Linda P.

Reviews

Historical Society 's Dedication Tree in need of help.

"Dr. Jimz, I purchased some of your "tree revitalizer" because there is ONE ( of 4) large Caliper crepe myrtles planted and dedicated to individual's loved ones as well as our veterans at our town's local Historical Society grounds that looks like one of your advertised trees "before" & "after" photos. THIS particular crepe myrtle right side is pretty much dead while the left side still flurishes. Since THIS tree is special to me, I decided to give your tree revitalizer a try! ( see pics attached) I'm asking for advice on the best manner in which to distribute your product for optimal results in bringing this special tree back to life. Your response will be greatly appreciated! GYDBD@yahoo.co G. G. Yarborough Bladenboro Historical Society Bd. Mbr."

— Graham Y. (5/5)

What a difference Dr. Jim’s makes on languishing p

"A few years ago, I first used chicken Soup for the soil in our greenhouse in late summer, when our veggies were languishing from heat and plain well water drenching. The nutrient boost it gave was amazing! New tomato formation, cucumber more plentiful, greens thickening convinced me there was something to his products. We applied Tree Secrets to our newly planted ligustrums that were turning brown. Within a week they made a turn-around and new green foliage appeared. We planted Green Giant arborvitae and I believe it contributed to their initial growth spurt. In a couple years they have tripled in size, however one of them is under stress. We are now actively feeding this tree health dosages and are monitoring its recovery. I have all the confidence it will indeed thrive again. Thanks Doc!!"

— Rolling C. (5/5)

I have a small Oak

"I have a small Oak tree planted in my front yard. It is about 2" Diameter and was planted in Nov 2025. I thought it was looking a little sad by August. I bought the Tree Secret and I also bought a watering boot. I mixed up the juice and put it in the bag. I was gone out of town for about 3 weeks. When I got back it was looking better. I just applied a little more before fall. This stuff works!"

— Jeffrey G. (5/5)

Tree Secret Fertilizer Leaked During Shipment

"Ordered 2 gallons. Upon arrival, 1 gallon had leaked into the plastic bag it was placed in. There is now less than 1/4 of a gallon, and I'm not opening the mess. Can't seem to find a telephone # to contact about getting a replacement. Not happy, as I needed both gallons for all my trees; now a set back and want a replacement or refund. Can someone please contact me?"

— Pam (1/5)

Heritage Birch

"We have an almost 30 year old heritage Birch that starts losing leaves in July in Missouri. Figured it was due to heat and lack of moisture, so watered more with no effect. Used Tree Secret and this year the leaf loss is incredibly reduced and the tree just looks healthier. Will keep using this and hope we get the same results. Very pleased."

— Alan S. (5/5)

jury is still out

"We have a large tree that has been struggling since we bought the house. We have tried iron to green up the leaves... Spring and fall, and that hasn't worked. Tried Tree Secrets.. still no improvement. Hoping that maybe it will kick in next spring. But due to the size of the tree-- it took an ENTIRE bottle. (since we have yellow leaves instead of green, we did have a professional out who said it needed iron, so he did a dose of iron a year ago in the fall, and we repeated this spring. Still no green up) SO I am stumped... Might do another dose of iron.. It didn't help that last winter was very dry too. We live in Utah. Ordered another bottle of Tree Secrets... Will use next spring, I guess???"

— Barbara G. (4/5)

I have been in landscaping

"I have been in landscaping professionally for over 20yrs. And have brought plants out of bad states through endless pruning and fertilizers. I seen the ads and read up on Dr. Jimz. Bought a bottle for a dogwood that was looking to be on its way out. To my amazement 2 weeks later I went back to the house (to do other work) and the dogwood was doing amazing! Had buds on branches I myself would have cut out. I will be buying more for sure."

— Brandon B. (5/5)

My trees started to yellow

"My trees started to yellow so I tried this hoping it would help. It didn’t help at all and they are continuing to die."

— JOHN H. (1/5)

Did absolutely nothing for me unfortunately

"Purchased it for a few trees, 2 maple type trees who aren't dead but all foliage died earlier season and they're bare (neighbors all have full coverage) they're showing no improvement. Put it on a few arborvitae. . 2 look the same, 1 fully died unfortunately. Given the cost I'd hoped to "rescue" the one arborvitae which was yellowing (fully brown now), and hopefully recover some foliage on the two trees out front. . but I've seen no improvement."

— Shawn (1/5)

Magical

"Prior to treating my River Birch trees (3), they looked scrawny, thin and small leaves what few there were. After two treatments with Tree Secret by JimZ, the River Birch trees are flourishing, new leaves aplenty and are large, tons of new growth and NO Aphids. Finally my trees look awesome. Thank you!!! I highly recommend Tree Secret by JimZ…. you won’t be disappointed!"

— Paulette J. (5/5)

Q&A

is Tree Secret non-toxic to animals?: Tree Secret is all natural and toxin free. It is safe to use around animals and pets :) We hope you give it a try!
I have arborvitae and boxwoods in containers on my deck. Three are less than 1" thick - would I use a much smaller amount since they are in containers vs in-ground? Thank you!: When applying to trees that are in containers it is important to be careful and not over-apply. It is a good rule of thumb to apply at half rate and then reapply if needed. Hope this helps!
I have a massive hedge of 4 10 ft tall by 6 ft wide yews that are around 40-50 yrs old. Since they are almost like trees, would I use the shrub measuring guide or the tree measuring guide to determine how much fertilizer to apply?: It would be best to measure them as you would a tree :) Hope this helps!
Hi, My Tree Secret bottles are in my shed. The weather got down to between 10 and 32 for several weeks this year (Zone 8A, Memphis, Tn 2024-25) will they still be useable. I want to feed my trees in a couple weeks.: Absolutely! Tree Secret can freeze and get hot without any problems. The nutrients are good for 3 years :) Hope this helps!
What is the dosage for white pines and balsams at mature stage. I have 36 trees. (tree secret): The amount needed for best results depends on the diameter width of the tree trunk 4' up from the base of the tree. Use 1 cup per caliper inch of tree trunk (diameter), mix with water and evenly apply from the base of the tree to the drip line. Then water into the root zone. You will LOVE the results!

Frequently Asked Questions

What makes Tree Secret® different from other fertilizers for trees?

Most tree fertilizers on the market use synthetic nitrogen that forces fast growth while weakening the tree. Instead of thinning cell walls with chemical fertilizers, Tree Secret® 4-1-2 feeds the soil microbes so they can break down and deliver nutrients at a biological level, supporting stronger root growth and enhanced nutrient availability. This promotes a healthier tree with fewer problems.

There is an array of essential amino acids, multiple sources of minerals, trace minerals, and micro trace minerals all in natural chelated forms. We have an array of organic acids from mineral extracts and have multiple sources of carbon. There is an assortment of sea plant extracts and some compounds found in sea fog that come from the respiration of sea plants, as well as other important plant components. All ingredients are transformed into a colloidal nutrient that is non-leaching and easy for microbes to consume, digest, and feed the plants at a biological level. You won't find a more complete solution; that's why we consider it the best fertilizer for trees on the market.

Can I use Tree Secret® on shrubs, bushes, and fruit trees?

Absolutely. Tree Secret® works on all types of woody plants, including deciduous trees, evergreens, fruit trees, shrubs, and bushes. Plants and bushes need the same nutrition as slow-growing trees, making this complete fertilizer the perfect choice for your entire landscape. Use it twice per year on stressed or dying trees and once per year for general maintenance. For larger trees, base your dosage on trunk diameter to make sure you're applying enough.

When is the best time to apply fertilizer for trees, and how do I know if my trees need it?

If you have not fertilized your trees yet this year, right now is always the best time to start improving your soil. Tree Secret can be applied anytime; however, it is best to apply in the spring and again in the fall to help trees store nutrients before winter. For established trees, one to two applications per growing season is typically enough. Signs of nutrient deficiency include pale or yellowing leaves, brown needles, stunted new growth, and a thin canopy. Tree Secret® is an excellent foundation for any tree care program because it delivers essential nutrients without the salt buildup and problems that come with synthetic options. We offer a full satisfaction guarantee & hope you give it a Try!