High-Performance Flexible Growth Medium
Flexterra® HP-FGM™
High-Performance Hydraulic Erosion Control for Demanding Slopes and Channels
Steep slopes, long slope lengths, intense rainfall, and difficult access
can quickly exceed the capabilities of conventional hydraulic mulch.
Flexterra® High Performance-Flexible Growth Medium™ forms a continuous,
flexible, erosion-resistant matrix that protects seed and soil while
supporting rapid vegetation establishment.
Flexterra HP-FGM is designed for demanding sites where erosion
protection, moisture management, surface bonding, and vegetation
establishment must work together from the first application.
Where Flexterra HP-FGM Fits
Flexterra is used where project conditions require more than basic
hydraulic mulch or lower-performing fiber matrices. It is suited to
steep, highly exposed, difficult-access, and time-sensitive sites where
soil loss could lead to repair work, delayed stabilization, or compliance
concerns.
More Than Mulch. A High-Performance Growth Medium.
Flexterra combines engineered fibers, interlocking matrix structure,
soil-bonding components, and water-management technology to provide
erosion protection and create favorable conditions for vegetation.
Bond Seed and Soil Together
The applied matrix conforms to the soil surface, fills small
irregularities, and creates continuous contact that helps resist
rainfall impact and shallow runoff.
- Continuous surface coverage
- Strong soil bonding
- Protects seed from displacement
- Helps reduce rilling and surface erosion
Create a Productive Seedbed Environment
The flexible matrix helps retain useful moisture, moderate
surface conditions, and maintain close contact among seed,
soil, fibers, and amendments.
- Supports moisture retention
- Promotes rapid germination
- Supports root development
- Allows vegetation to grow through the matrix
How Flexterra Works
Flexterra is hydraulically applied over a prepared soil surface. Once
applied, the system forms a porous, flexible, erosion-resistant blanket
that remains in close contact with the soil while vegetation develops.
01
Engineered Fiber Matrix
Interlocking fibers create a continuous protective layer
across the prepared surface.
02
Moisture Management
Water-management components help retain moisture around seed
during the critical establishment period.
03
Seed and Amendments
Seed, fertilizer, and prescribed amendments are held close
to the soil surface for consistent establishment.
04
Prepared Soil
Proper grading, soil preparation, testing, and amendment
selection create the foundation for performance.
Why High-Performance Hydraulic Protection Matters
Conventional hydraulic mulch is primarily intended to support seed
germination. Flexterra adds a higher level of erosion resistance for
sites where rainfall and runoff can remove soil before vegetation has
time to mature.
01
Immediate Surface Protection
The matrix begins protecting seed and soil as soon as the
application is completed and cured.
02
Flexible Soil Contact
The hydraulic application conforms to surface contours and
maintains contact across irregular terrain.
03
Rapid Vegetation Response
Moisture management and close seed-to-soil contact support
fast, consistent establishment.
04
Efficient Application
Hydraulic placement reaches broad, steep, and difficult
areas without requiring blanket installation crews.
Application Guidance
Flexterra HP-FGM should be installed over a properly prepared soil
surface using suitable hydraulic equipment, water volume, loading
procedures, mixing sequence, nozzle technique, and specified application
rates.
Soil testing, seed selection, fertilizer, amendments, and application
rate should be coordinated with slope geometry, rainfall exposure,
runoff conditions, vegetation goals, and project specifications.
Areas of concentrated flow, transitions, outlets, channel bottoms,
severe scour potential, or hydraulic conditions beyond the tested
capabilities of the system may require additional reinforcement or a
different erosion-control solution.
Important:
Final product selection and application rates should be confirmed using
project-specific site conditions, tested performance data, manufacturer
guidance, hydraulic calculations, and the approved project specifications.
Demanding Site Conditions
High-Performance Protection Across Disturbed Sites
Flexterra is designed for sites where erosion exposure,
constructability, slope geometry, and vegetation establishment must
be addressed through one coordinated hydraulic application.
01
Roadway Slopes
Protect long cuts, fills, shoulders, interchanges, and
transportation embankments exposed to heavy rainfall.
02
Landfills and Reclamation
Stabilize large disturbed areas where access, slope length,
soil quality, and rapid establishment create challenges.
03
Stormwater Facilities
Protect pond slopes, berms, swales, and drainage areas during
vegetation establishment.
04
Utility Corridors
Stabilize pipeline, transmission, and infrastructure corridors
across broad or inaccessible terrain.
05
Channels and Drainageways
Support vegetation and surface protection where hydraulic
exposure remains within tested system capabilities.
06
Commercial Development
Protect disturbed slopes and open areas during site development,
infrastructure installation, and final stabilization.
Hydraulic Mulch vs. Flexterra HP-FGM
The correct product depends on slope, rainfall exposure, runoff,
establishment period, access, and the level of erosion protection the
site requires.
Selection matters:
A lower-cost mulch can become the expensive choice if the site requires
repair, reseeding, sediment cleanup, or repeated mobilization after a
rainfall event.
Soil Building + Surface Protection
Pair Flexterra With ProGanics® BSM™
Where the existing soil cannot support sustainable vegetation,
Flexterra can be installed as part of the ProFlex™ System with
ProGanics BSM.
ProGanics BSM improves the depleted growing environment, while
Flexterra protects seed and soil against erosion during establishment.
01
Evaluate the Soil
Identify organic matter, pH, nutrient, salt, biological, and
physical limitations.
02
Build the Growing Environment
Apply ProGanics BSM and prescribed amendments to improve the
depleted substrate.
03
Protect the Surface
Apply Flexterra HP-FGM to secure seed and soil while
vegetation develops.
Permanent Reinforced Vegetation
Combine Flexterra With Futerra® HP-TRM
For sites requiring permanent turf reinforcement, Flexterra can be
installed with Futerra TRM or Futerra R45 HP-TRM as part of the
GreenArmor™ System.
Flexterra provides immediate surface protection and supports rapid
establishment, while the turf reinforcement mat remains in place as
a permanent structural component within the root zone.
01
Permanent Matrix
Futerra provides a permanent three-dimensional reinforcement
structure.
02
Hydraulic Infill
Flexterra fills and covers the matrix while protecting seed
and soil.
03
Reinforced Vegetation
Roots, vegetation, soil, and the permanent matrix integrate
into one system.
R.H. Moore Technical Support
Match the Application to the Site Conditions
R.H. Moore helps connect soil conditions, slope geometry, rainfall
exposure, vegetation goals, product selection, quantities, equipment,
application rates, and contractor execution.
01
Evaluate
Review soils, slope, runoff, rainfall exposure, access,
vegetation goals, and consequences of failure.
02
Select
Confirm whether Flexterra, another hydraulic product, or a
reinforced system best fits the project.
03
Calculate
Determine acreage, application rate, product quantity, tank
loads, seed, amendments, and water requirements.
04
Support
Assist contractors with loading, mixing, application technique,
coverage, sequencing, and jobsite coordination.
Need High-Performance Hydraulic Protection?
Bring Us the Site Conditions.
Connect with R.H. Moore for Flexterra HP-FGM product selection,
application rates, quantity calculations, specification support,
equipment planning, contractor coordination, or project-specific
technical guidance.