Landscaping Rules in Pierce County, WA (2026)

PCC 18J.15.130.C.3

Pruning of Significant and Legacy trees shall be done by a professional tree service only. All plant materials shall be pruned and trimmed as necessary to maintain a healthy growing condition or to prevent primary limb failure.

PCC 18J.15.030.F.3

Significant Trees. At a minimum, 30 percent of significant trees on site shall be retained, preferably reflective of the diversity of species and age within the stand, up to the minimum tree density requirements. All retained significant trees shall be shown to be windfirm.

RCW 17.10.140(1)

Except as is provided under subsection (2) of this section, every owner must perform or cause to be performed those acts as may be necessary to: (a) Eradicate all class A noxious weeds; (b) Control and prevent the spread of all class B noxious weeds designated for control in that region within and from the owner's property.

PCC 11.02.050.B.7

7. Roof rainwater collection systems, which retain stormwater on site for later nonpotable use, will be credited as retention facilities. Systems that are properly sized for their intended use and have a capacity of at least 1,500 gallons per structure will be assigned the same credit as a 10-year Retention Facility. Larger systems capable of retaining the 25-, 50- or 100-year storms will be cr...

PCC 18J.15.070.B.6.a

Installation of vegetative groundcover that is native and drought-tolerant is encouraged but not required within the planting area. Native and drought-tolerant vegetation shall be considered.

PCC 8.08.050.F

Property where solid waste has accumulated or is handled, stored, treated, processed, or buried except for properly permitted solid waste handling sites or facilities... and solid waste securely stored in receptacles or containers designed to prevent threats to human health or safety or to the environment.