Rated 5.00 out of 5 based on 3 customer ratings
(3 customer reviews)

For use as a soil amendment when planting palms. An 8 oz. bag will treat one typical size palm. DIEHARD™ PALM TRANSPLANT is formulated as a preparation to inoculate the roots of palm trees with live beneficial Mycorrhizae fungi, when planting; promoting Mycorrhizal development with new feeder roots. It contains highly selected Endomycorrhizae fungi that will quickly colonize the roots to provide the best possible conditions for the roots to grow and extract water and nutrients from the root zone.

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What it is!

DIEHARDTM PALM TRANSPLANT is used as a soil amendment for transplanting palm trees, i.e., palm oil, dates, etc

Tip: Follow up with DIEHARD BioRush® monthly for Maintenance!

What it does!

Survival, Rooting, Water Absorption, Nutrient Availability, Plant Health, Soil Health, Flowering, Yields and Production

Plant Loss, Fertilizer Use, Need of Pesticides, Heat Stress Damage, Water Use, Losses from Drought Conditions.

Endo-mycorrhizal Fungi, Beneficial Bacteria, Trichoderma Fungi, Sea Kelp Extract, Humic Acids, Horta-Sorb® Water Gel, Root Promoting Vitamins and Amino Acids.

What it contains!

Endo-Mycorrhizae Fungi
Psuedomonas & Streptomyces Species

Humic Acid
Soluble Sea Kelp
Yucca Plant Extract
Amino Acids
Trichoderma Fungi

Water and Nutrient Management Gels
Root Promoting Vitamins
Additional Microbials

How to use it!

  • Incorporate evenly with Backfill, along the sides of the planting pit; adjacent to root ball in the upper 10-12 inches of the planting hole according to the diameter of the root ball, For 2 ft. or less -1 bag ; 3 ft. use 2 bags; 4 ft. use 3 bags; 6 ft. use 8 bags; 8 ft. 12 bags

Weight N/A
Dimensions N/A
Select Sizes

8 oz. Bag, 8 oz. x 20 Box, 8 oz. x 60 Pail, 8 oz. x 100 Case, 25 lb. Box


  1. Rated 5 out of 5

    Lorna Walter

    I have two Trachycarpus Fortunei fan palms growing in my yard in Seattle, Washington. Last Winter was especially cold and wet, and the fronds on my palms were splitting with lots of brown tips. In May I googled the internet, found Horticultural Alliance, and ordered a recommended bag of their Diehard Palm formula. By late summer my palms looked better than they had in the past four years!! I recently ordered (and just received) another 4-pound bag of the “secret Diehard formula”. I’m planning on dosing both trees again this weekend (for a fall and winter feeding). Each palm sprouted five or six new fronds this summer and look so green and healthy now. I’m glad I found Horticultural Alliance because they’re the best!

  2. Rated 5 out of 5

    Dr. Timur Mirzoev

    . I have used DIEHARD Palm (for maintenance) only twice in 4 years and my palm trees are looking great. In fact, anything that was growing close to where the product was applied, started to grow much faster and produce lush results. All of the trees are handling winters much better and people can SEE the health of my trees. I am not a professional landscaper in any way, it is just my hobby. However, now my neighbors come by and take pictures of my landscape and I receive plenty of positive comments from the veterans of the landscape business.

  3. Rated 5 out of 5

    Clint Oster

    Being a Landscape Architect I am always looking for the edge that will make my project better than the others. With the use of this product (since May 1998) we have less call backs and better looking trees.” Thanks for your efforts and superior products.

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