The term “clog plant” refers to plants that create physical obstructions, particularly within plumbing and drainage systems. Certain species can pose significant challenges by interfering with underground infrastructure. Understanding how these plants cause blockages and how to mitigate their impact is important for maintaining property integrity.
How Plants Cause Clogs
Plant roots are drawn to water, nutrients, and oxygen, readily available in underground pipes like sewer lines, septic systems, and storm drains. Even hairline cracks or loose joints can release vapor or water, attracting nearby roots. These fine roots can penetrate openings, then grow and expand inside, forming dense masses that restrict water flow. This growth can eventually lead to complete blockages. Beyond pipes, aggressive groundcovers and invasive aquatic plants can also impede waterways.
Common Plants Associated With Clogs
Several plant species are known for aggressive root systems that infiltrate and damage underground pipes. Trees such as willows, poplars, and certain maples, including silver maples, are particularly notorious. Willows are highly water-seeking, with roots that spread significantly. Poplars develop extensive, fibrous root networks that grow both horizontally and vertically, forming dense mats inside pipes. Oaks and elms also have powerful root systems that can exert pressure on pipes, leading to fractures.
Beyond pipe-damaging trees, fast-spreading groundcovers can overwhelm garden spaces. Invasive aquatic plants like water hyacinth, floating pennywort, and parrot’s feather can also block ponds and drainage ditches.
Preventing Clogs From Plants
Selecting appropriate plants is a primary step; choosing species with less aggressive root systems or those that are slow-growing can reduce risk. Small, non-invasive trees like Japanese maples or dogwoods are often recommended. Proper planting distance from underground pipes is also important, with a general guideline of keeping trees and shrubs at least 10 to 20 feet away from sewer lines. Larger trees with extensive root systems may require even greater distances, sometimes up to 50 feet or more.
Physical root barriers, made from materials like plastic, fiberglass, or geotextile fabric, can be installed to redirect root growth away from pipes. These barriers contain roots within a designated area. Chemical root inhibitors can also be applied to the soil to deter root growth near pipes. Regular monitoring of your landscape and plumbing system, including professional pipe inspections, helps identify and address potential issues. Knowing the location of your sewer lines by checking property documents or calling utility services can further aid in strategic planting.
Resolving Plant-Related Clogs
When plant roots have infiltrated pipes, several methods can address the issue. Mechanical removal techniques, such as using a plumbing snake or auger, cut through root masses. For severe clogs, hydro-jetting uses high-pressure water jets, typically ranging from 3,000 to 8,000 PSI, to cut through tough root blockages and thoroughly clean pipe walls. This process removes existing roots and clears accumulated debris.
Chemical treatments, such as copper sulfate or dichlobenil-based foaming root killers, can eliminate roots inside pipes. These chemicals target and dry out roots, causing them to decay and be flushed away. Foaming agents expand to coat the pipe’s interior, ensuring comprehensive treatment. For recurring or extensive root intrusion, professional plumbers can perform camera inspections to assess damage and determine the most appropriate long-term solution, such as pipe relining or replacement.