2018-2019 Horticultural Catalog

Give your plant’s root system
a biological boost with GROTAB
3 in 1 products!
Grotab 3 in 1 Tablet - Premium Plant Starter (12-8-4 or 4-8-4)
• 3 in 1 compressed biostimulant in tablet
form that creates a synthesis of 3 different
approaches to the fertilization of all trees,
shrubs, ornamentals and garden plants
• Contains: Root inoculant (Trichoderma),
Biostimulant (Mycorrhizae Glomus
Intraradices), and NPK (12-8-4 or 4-8-4)
• Increases plant development
Qty/ Catalog Price per Each
Analysis Pack Number 1-11 12 & up
12-8-4 100 07-05920 $ 38.10 $ 35.00
Each 2 & up
500 07-05930 170.00 155.00
Each 2 & up
1500 07-05940 470.00 446.50
1-23 24 & up
4-8-4 16 66-01040 6.69 6.21
1-19 20 & up
36 66-01060 13.45 12.50
1-11 12 & up
100 66-01080 38.10 35.00
• Activates soil microorganisms
• Activates the root system
• Increases nutrient absorption
• Increases resistance to abiotic stress
• Holds 3x its weight in water
• Will not burn roots
• Easy to use, no mixing or measuring
• Use 1-2 tablets per plant based upon size.
Grotab fertilizers fertilizers
Grotab 3 in 1 Powder 12-8-4
Perfect for blending with soil mediums for the establishment of a healthy root system.
Growtab 3-in-1 Powder reduces transplant stress by giving the plant a blend of
beneficial microbials including Mycorrhizae & Trichoderma. It is a product composed
of spore and mycelium of living fungi not genetically modified. Also contains a
fertilizer boost of 12-8-4 that will really get your plants off to a great start.
Use at these rates:
4-6” root mass or container ............... 1/2 Tablespoon
6-12” rootmass or container .............. 1 Tablespoon
12-18” root mass or container............ 2 Tablespoons
18-24” rootmass or container ........... 2-3 Tablespoons
24” or larger rootmass or container.. 3-4 Tablespoons
Use and Dose: Mixing into
soil medium:
Thoroughly blend Grotab
3 in 1 powder at 1 pound
per 3 cubic yards of soil
medium
In greenhouse transplanting: Can be applied by lightly dusting or dipping
small rooted plants into powder just prior to transplanting.
Price per Each
Size Catalog # Each 2 & up
10 lb 66-01140 $ 260.00 $ 247.00
184 800-325-3055
www.hummert.com