Best Root Stimulant For Trees for Planting and Transplanting

#1 · Best Overall

1. MitoGrow Tree & Shrub

• Form: Granules, Powder

Best for: Multi-ingredient tree support.

Why it ranks #1: Explicitly targets trees and shrubs and combines 2.50% indole-3-butyric acid with B vitamins, Bacillus bacteria, and endo- and ectomycorrhizal fungi.

MitoGrow combines 2.50% indole-3-butyric acid with B vitamins, Bacillus bacteria, and endo- and ectomycorrhizal fungi, giving tree and shrub care several named components in one granular or powdered formula. The company says its biostimulant helps plants use existing nutrients more efficiently without adding excess fertilizer.

The IBA supports root development, while the listed fungi and beneficial Bacillus bacteria are presented as contributors to nutrient uptake; together, these ingredients connect the formula to establishment and plant support. MitoGrow says it works with any fertilizers and nutrients, so it can fit into an existing feeding routine. Its stated results window is one to four weeks, depending on tree or shrub size, which gives buyers a product-specific expectation rather than an immediate-results promise.

Skip it if you need a liquid concentrate; MitoGrow is listed in granule and powder forms.

Pick MitoGrow if you want a multi-ingredient granular or powdered option for tree and shrub establishment that can accompany fertilizer. Account for its stated one-to-four-week results window, which depends on plant size, rather than expecting an instant change.

Listed on Amazon as: Tree & Shrub – It's Not Dead Yet mitogrow

#2 · Tree-Specific Powder

2. TPS Root Stimulator for Trees

• Form: Powder

Best for: Outdoor tree establishment.

Why it ranks #2: Named for trees and described for planting and relocation, with support for root development, nutrient uptake, and tree stability in powder form.

A dry mycorrhizal fertilizer aimed specifically at trees gives TPS Nutrients Root Stimulator a clear planting and relocation role. It supports root growth during establishment and nutrient uptake afterward, with stated suitability for shade trees, fruit trees, and other outdoor plantings in landscapes or orchards.

This powder focuses on supporting root development while trees are planted or relocated, a useful match for establishment work rather than a general list of houseplant uses. Its stated support for nutrient uptake connects root growth to the tree’s ongoing access to nutrients, while the shade-tree and fruit-tree suitability covers common landscape and orchard settings. Handling requires gloves and eye protection, and the directions identify it as a dry mycorrhizal fertilizer, so application involves working with powder.

Skip it if you want a liquid concentrate for transplant watering; Bonide Root & Grow is supplied as a liquid concentrate.

Consider TPS Nutrients for outdoor tree planting or relocation when you want a tree-focused dry mycorrhizal fertilizer. Its powder format and handling precautions matter; choose a liquid option instead if you prefer not to apply a dry product.

Listed on Amazon as: Root Stimulator for Trees, 16 oz

#3 · Broad-Use Concentrate

3. Bonide Root & Grow

• Form: Liquid

Best for: Transplants and mixed gardens.

Why it ranks #3: A 32-ounce liquid concentrate expressly lists trees and fruit trees, alongside transplants, shrubs, berries, and other plants.

Indole-3-butyric acid (IBA) is the active root-stimulating ingredient in Bonide Root & Grow, letting gardeners use one liquid concentrate for seeding and transplanting. Its listed plant range also includes fruit trees, shrubs, vegetables, berries, flowers, houseplants, and ornamentals, making it a versatile option for varied planting jobs.

Use Root & Grow when seeding or transplanting to stimulate early root formation and support stronger root development; the product also aims to reduce transplant shock and promote more vigorous growth. Its 32-ounce concentrate format suits gardeners treating multiple kinds of plantings, from trees and shrubs to houseplants and vegetables. Because the supplied directions refer users to the label for full instructions, follow that label for application details rather than assuming a dilution rate.

Skip it if you need a stated mixing rate before buying; the supplied listing directs you to the label for full instructions.

Choose Bonide if you want one IBA-containing concentrate for trees and a broad mix of garden or houseplants, especially during seeding and transplanting. Check the label for application directions, since the supplied details do not specify a dilution rate.

Listed on Amazon as: Bonide Garden Rich Root & Grow Root Stimulator & Plant Starter

#4 · Landscape Liquid

4. Fertilome GAL Root Stimulator

• Form: Liquid

Best for: Landscape beds and bare-root planting.

Why it ranks #4: Its one-gallon liquid concentrate is intended for planting trees, shrubs, and bare-root plants and is described as helping reduce transplant shock.

Ferti-lome GAL Root Stimulator comes as a two-pack of liquid concentrate for planting work, with stated use on trees, shrubs, flowers, and bare-root plants. Its planting-time application supports early root growth and establishment, while the product also aims to help reduce transplant shock.

The listing recommends using this liquid plant root stimulator each time you plant, making it a fit for recurring work in gardens and landscape beds. Its focus on early root development pairs with transplant-shock support for new plantings and bare-root plants. The product is described as a one-gallon liquid concentrate, but the supplied information does not provide a mixing rate; check the label for directions before preparing the solution.

Skip it if you need a listed mixing rate before use; the supplied product details do not state one.

Ferti-lome GAL fits landscape gardeners who regularly plant trees, shrubs, flowers, or bare-root specimens and want liquid concentrate in a two-pack. Check label directions for mixing, since the supplied listing does not state a rate.

Listed on Amazon as: Fertilome GAL Root Stimulator (2-Pack)

#5 · Twin-Bottle Pack

5. Fertilome Root Stimulator

• Form: Liquid

Best for: Liquid concentrate for new plantings.

Why it ranks #5: Includes two 32-fluid-ounce bottles of water-soluble concentrate, with listed uses including trees and support for transplant establishment.

Two 32-fluid-ounce bottles of Fertilome Root Stimulator and Plant Starter give gardeners liquid concentrate for repeated planting jobs. The water-soluble formula mixes with water, and its listed uses span trees, shrubs, roses, annuals, perennials, and houseplants, making it useful across a mixed garden.

This hormone-type root stimulator and fertilizer is intended to aid fast, strong root structure, while its transplant-assistance claim addresses shock during establishment. Because it is water-soluble, the concentrate can be mixed into a usable fertilizer solution; the label provides the mixing rates. Two bottles offer supply for multiple planting tasks, but the supplied information does not quantify how many trees either bottle treats, so coverage depends on label directions and application volume.

Skip it if you need a tree-specific dry mycorrhizal powder; TPS Nutrients Root Stimulator for Trees is listed for outdoor trees.

Fertilome suits gardeners planting trees alongside roses, annuals, perennials, or houseplants who prefer a water-mixed liquid concentrate. Follow label mixing rates, and consider a tree-specific powder if your priority is a dry mycorrhizal product.

Listed on Amazon as: Fertilome 10645 Root Stimulator and Plant Starter Solution, 32-Ounce Pack of 2

#6

6. Trifecta Myco Supreme 13 oz

• Form: Granules

Best for: Larger-volume mycorrhizal use.

Why it ranks #6: The 13-ounce mycorrhizal granules can be mixed with water or sprinkled into soil, but the listed use is broader than tree-specific.

The 13-ounce Myco Supreme offers Trifecta’s stated 141,000 propagules per ounce in a larger package than its 2-ounce version, giving growers more product for repeat or broader applications. Its granular powder can be mixed with water or sprinkled directly into soil, pots, and beds.

Direct sprinkling offers a straightforward route for soil, pots, and beds, while mixing the granules with water provides another application method. The supplied directions also name indoor and outdoor growing, hydroponic systems, rockwool, and greenhouses, extending its listed compatibility beyond conventional beds. These options make it adaptable to different setups, though the supplied facts do not specify an application amount per tree; use the product directions to determine coverage for the intended planting.

Skip it if you only need a small trial quantity; Trifecta Myco Supreme Root Stimulator 2 oz is listed in a smaller package.

This larger Trifecta format suits growers treating multiple pots, beds, or varied growing systems who want both dry and water-based application options. Determine coverage from the product directions, since the supplied details do not give an amount per tree.

Listed on Amazon as: Trifecta Myco Supreme Root Stimulator | 13 oz

#7

7. TPS Granular Root Growth Stimulator

• Form: Granules

Best for: Cuttings and transplant work.

Why it ranks #7: Granules are described for early root development and transplants, but the listing focuses on plants generally rather than trees specifically.

Granular application is the defining practical feature of this TPS Nutrients root growth stimulator, which is listed for both cuttings and transplants. The formula supports early root development and plant establishment, offering one format for propagation tasks as well as helping newly moved plants get started.

For cuttings, the listing identifies the granules as usable rooting powder; for transplants, it says the product supports success and early establishment. That combination can simplify a workflow involving propagation and replanting without switching between separately described formats. The product is also characterized as a granular root fertilizer for consistent feeding, though the supplied details provide no application rate or tree-specific directions, so consult the product directions for the amount and use method.

Skip it if you want a liquid concentrate with tree-specific planting claims; TPS Nutrients Root Stimulator for Trees is listed for outdoor trees.

Choose this TPS Nutrients granular option if your planting routine includes cuttings and transplants and you prefer a dry format. The supplied listing does not give tree-specific directions or rates, so verify its instructions for your intended use.

Listed on Amazon as: Granular Root Growth Stimulator – Microbial Supplement for Faster Root Establishment & Reduced Transplant Shock, 6 oz

#8

8. Seedlingers Root Boost

• Form: Liquid

Best for: Seedlings and new plantings.

Why it ranks #8: The quart liquid concentrate supports roots and early growth in seedlings, transplants, and new plantings, with no tree-specific use stated.

Compost tea and plant extracts are among the traditional and organic ingredients in Seedlingers Root Boost, a liquid concentrate focused on early growth. Messinas says it builds microbial life and improves soil health, positioning the quart bottle for seedlings, transplants, and other new plantings.

The formula’s organic-based ingredients are tied to soil health and microbial life, while its root-development and early-growth claims suit seedlings and newly planted specimens. It is also described as helping plants tolerate stress during early growth, a relevant consideration during establishment. The quart bottle is a liquid concentrate, and the directions say to shake well before use; the supplied information does not give a general mixing rate, so consult the full label for application details.

Skip it if you need a stated dilution rate before use; the supplied Seedlingers details do not give a general mixing rate.

Choose Seedlingers for seedlings, transplants, and new plantings when soil health and microbial life are part of your priorities. Shake the liquid concentrate before use, and consult its full directions because a general dilution rate is not supplied here.

Listed on Amazon as: Seedlingers Root Boost Quart Concentrate

#9

9. Trifecta Myco Supreme 2 oz

• Form: Granules

Best for: Compact mycorrhizal treatment.

Why it ranks #9: This 2-ounce mycorrhizal granule is described for roots and multiple growing mediums, but its listed applications do not identify trees.

The 2-ounce Myco Supreme packs a stated 141,000 propagules per ounce into a small-format mycorrhizal inoculant, giving growers a concentrated powder for root-focused applications. Trifecta says it can be placed directly at roots or mixed with water, allowing different application approaches around potting.

Myco Supreme’s endomycorrhizae powder can go directly onto roots or be mixed with water and poured in after potting, so the same product supports more than one planting workflow. The listing also names use in a wide variety of growing mediums. Its concentrated propagule figures are a product claim, not a specified application rate; the supplied directions do not state how much to use per tree, so follow the product’s instructions when planning coverage.

Skip it if you need more product on hand for repeated applications; Trifecta Myco Supreme 13 oz comes in a larger listed size.

This compact Trifecta option suits growers who want a concentrated mycorrhizal powder for root contact or water-based application around potting. Its 2-ounce size is a boundary for larger jobs; check instructions for the amount needed per tree.

Listed on Amazon as: Trifecta Myco Supreme Root Stimulator | 2 oz