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ROBOVATIONS/CLASSIFICATION RECORD/SPECIALTY ROBOTSRELEASED 2019REASSESSED 2026.06.11
Franklin Robotics

Tertill Garden Weeding Robot

A passive weeder designed for hands-off operation in established garden beds. The product has been formally discontinued by the manufacturer with no support available. Owner reports from active units confirm reliable weed-cutting for unmowed areas when operational.

Tertill Garden Weeding Robot
FIT CHECK

Will the Tertill Garden Weeding Robot fit your application?

Describe your use case using the controls. Each choice reads the spec sheet for you, flagging where the Tertill Garden Weeding Robot is built for your space and where it isn’t.

Garden bed size

Weed pressure

What you plant

Upkeep style

A classification of fit for the conditions you set — not a recommendation. Verdicts describe engineering design intent, not test results.

SPECIFICATION

The full spec sheet.

Priced below the category median, with every figure charted against the category below.

10 in diaTOP5 inSIDEDimensional drawing
Key specificationsManufacturer-published
Footprint
10 in dia · 5 in tall
Weight
2.4 lbs
Mapping & navigation

Pressure-switch height sensor, pseudo-random path within bounded area

Where it lands · ranked across 24 specialty robotsThis robotMedianTypical range
Runtime420min
60 min960 min
Near median
Price$349
$25$100,000
Bottom of range
Weight2.4lbs
0.09 lbs2,646 lbs
Bottom of range

Position shows where the figure sits across the tracked category — not a quality judgment.

OWNERSHIP

Living with it.

Steady performer in contained beds; battery and motor durability improve over seasons.

Owner reports from multi-year deployments confirm reliable cutting mechanics and battery longevity. The primary failure point is moisture ingress during heavy rain; drying and cover storage extend lifespan. Manufacturer has iterated battery design across generations to improve winter performance.

Owner effort~30 minhands-on per month
ConsumablesNonereplaceable parts / yr
Reliability trend Stableowner-reported arc
What goes wrong · 3 documented · 0 self-recover
Occasional
Moisture damage in wet climatesCorrosion of battery terminals, motor bearing stiffness
Owner fixDry-storage winter maintenance, cover during heavy rain
Occasional
Debris binding in diskReduced cutting effectiveness, increased motor load
Owner fixWeekly manual inspection and removal of grass clumps
Rare
Perimeter edge escapeRobot exits bed boundary, lost or damaged
Owner fixRaise bed edges or use supplemental physical barriers
Upkeep routine
Weekly52×/yr
Remove grass clumps and debris from disk area.
Monthly12×/yr
Inspect battery terminals for corrosion, clean if needed.
Seasonal4×/yr
Store indoors during winter or heavy rain; check rubber seals before redeployment.
As neededno fixed schedule
Tighten perimeter or bed edges if robot escapes; no user-replaceable consumables.
Cost over time · past the sticker

$349 to buy, with no regularly replaced parts. The purchase price is effectively the full cost of ownership.

Safety notes

CautionRotating disk beneath cover: Contact with spinning blade during maintenance or clearing. Always remove battery before servicing.

NoteUnsupervised operation in yards with children or pets: The robot operates autonomously; keep supervising adults or barriers present to prevent inadvertent contact.

RECORD

How the assessment has moved.

Every announcement, release and reassessment behind the current classification.

Coming soon
Just launched
Active updates
Settled
Discontinued
  1. Aug 2024 · NewsTertill retail availability narrows to direct-only as third-party stock thins
  2. Apr 2025 · Assessment changeTertill fit-profile narrowed following multi-season owner reports on plant damage
  3. Jul 2026 · AssessmentRobovations Score recorded at 69 of 100
  4. Jul 2026 · AssessmentRobovations Score reassessed, overall unchanged at 69
Common questions

What people actually ask.

5 answered
OperationDoes Tertill cut grass, or just weeds?
Manufacturer specs confirm operation only in gardens with plants taller than 2 inches. It will cut grass and short vegetation equally, so it is not suitable for lawns. Owner reports confirm best use in established beds where desired plants are tall enough to be protected by the height sensor.
OperationHow long does the solar battery last on cloudy days?
The robot uses a rechargeable 7-hour runtime on a full charge. Manufacturer specs do not detail charge time under cloud cover; owner reports from temperate climates suggest 2-3 days of operation possible with partial sun before a full-sun recharge cycle is needed.
OperationCan I use Tertill on sloped terrain?
Manufacturer documentation specifies operation on ground with up to 30% slope. Owner reports from sloped gardens describe slower coverage and occasional tipping on steeper sections, so terraced or level placement is preferred.
OperationWhat happens to clipped plant material?
The cutting disk severs weeds below soil level; clippings remain in the bed and decompose naturally. Manufacturer documentation states no collection or mulching occurs, so heavy cutting periods may leave visible debris until breakdown occurs.
OperationDoes Tertill need boundaries or perimeter wire?
No perimeter setup is required. The robot operates within physical boundaries of the bed itself, exiting the bed via a slight tilt or bump response. Manufacturers recommend contained beds (raised boxes or distinct borders) for optimal operation.

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Availability

Where it's sold

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Amazon See current listings
Cite / Embed

Reference the Tertill Garden Weeding Robot classification.

Embed the Autonomy Ladder™ mark or copy the citation. The mark links back to this assessment and updates if the classification changes.

RobovationsAutonomy Ladder™Level IIAssisted AutonomyIndependent classification
Citation
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By RobovationsUpdated: Jun 19, 2026
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