Berm.An earthen mound designed to provide visual interest, screen undesirable views, and/or decrease noise levels.
Bubbler.An irrigation type that allows water to gently soak into the ground with minimal erosion or loss of water due to evaporation.
Caliper.The diameter of a tree trunk measured at breast height (4-1/2 feet above ground level). The caliper of a multi-trunk tree is determined by the full caliper of the largest trunk, plus half (1/2) the caliper of the other trunks. This measurement is used for newly planted trees.
Clear-cutting.The removal of all trees or a significant majority of the trees on a parcel of land.
Critical root zone (CRZ).The area of undisturbed natural soil around a tree defined by a concentric circle with a radius equal to the distance from the trunk to the outermost portion of the drip line but not less than one foot radius for each one inch DBH.
Diameter at breast height (DBH).The diameter in inches of a tree as measured through the main trunk at a point four and one-half (4-1/2) feet above the natural ground level.
Director.The planning director of the City of Celina or his/her designee.
Drip line.A vertical line run through the outermost portion of the crown of a tree and extending down to the ground.
Drought tolerant/low water demand plant.The ability of a plant to be drought tolerant is primarily due to the plant's ability to limit water loss through the leaves and acquire more water through the roots. Plants have developed several mechanisms to reduce water loss, many of which can be recognized in native and cultivated plants.
Fencing, protective.Snow fencing, chainlink fencing, orange vinyl construction fencing or similar fencing with a four (4) foot approximate height. The director shall determine the appropriate type of fencing for any particular property or portion thereof. This fencing is intended to be of a temporary nature.
Grass, ornamental.A grass type that is generally considered in the landscaping industry to have ornamental qualities, and which is typically grown in a flower garden. Ornamental grass typically grows to a height of between six (6) inches and thirty-six (36) inches and does not tolerate being cut below six (6) inches. These said grasses are usually used as an accent grass and not the main coverage of a yard. These grasses are commonly grown for the display of their leaves or flowers and may contain a variety of colors depending on the season.
Grass, turf.Grass commonly used in regularly cut lawns or play areas, such as, but not limited to: Bermuda, St. Augustine, Fescue, and Ryegrass blends.
Green.An open space, available for unstructured recreation. A green may be spatially defined by streets, landscaping, and/or building frontages. Its landscape shall consist of lawn and trees.
Groundcover.Low growing plants, deciduous or evergreen species that cover the ground and used instead of turf. Plants that generally do not exceed eighteen (18) inches in height are classified as groundcover.
Impervious.A substance that does not allow the passage of water through it.
Irrigation system.An automatic watering system designed for watering landscaping and landscaped areas for a specified amount of time at a specified time of day. Irrigation systems are typically used to conserve water and time. All irrigation systems shall be equipped with an approved backflow prevention device to protect the water supply (if connected to city water supply) and a freeze and rain sensor.
Landscape buffer.The area within the boundaries of a given lot or, where applicable, the adjoining street right-of-way, which is devoted to and consists of plant material, including, but not limited to, grass, trees, shrubs, flowers, vines and other groundcover, native plant materials, planters, brick, stone, natural forms, water forms, aggregate, and other landscape features.
Landscaping.Any live plant material such as trees, shrubs, groundcover, and grass used in spaces void of any impervious material or building structure and areas left in their natural state.
Limits of construction.A line of delineation on the tree preservation plan which shows the boundary of the area within which all construction activity will occur.
Low water use irrigation system.The term low water use irrigation system is used to describe any low-pressure system that applies water in a controlled area. The most important feature of these systems is that it applies water very slowly and allows the water to be absorbed fully into the soil with minimal evaporation loss.
Mews.An open space at the front of a double row of residential units in lieu of a street. Vehicle access and mailing addresses via the associated alleyway.
Overhang zone.The area adjacent to the edge of a parking space on which portions of a vehicle (such as the hood or the trunk) overhangs the sidewalk or landscaped area, rendering this space unusable for pedestrian use.
Parkway.The area of public right-of-way located between the curb or edge of pavement and the property line or between the curb or edge of pavement and the sidewalk.
Plaza.An open space available for civic purposes and public commercial activities. A plaza is spatially defined by adjacent building frontages. Its landscape shall consist primarily of pavement, but may include shade in the form of planters with small ornamental trees or structure. Plazas frequently utilize fountains or water features.
Pollinator garden.A pollinator garden is a garden which is designed to provide for the needs of local pollinating species. This includes selecting native and adapted plants that will provide food for various life stages, along with physical features, to provide water and nesting habitat.
Screening.A technique used to protect and separate uses and site functions from one another for the purpose of decreasing adverse noise, wind or visual impacts, and to provide privacy and security (e.g., walls, fences, berms, landscaping).
Shrub.A self-supporting woody perennial plant of low to medium height characterized by multiple stems and branches continuous from the base, usually not more than ten (10) feet in height at maturity.
Sight triangle (visibility triangle).The area of unrestricted visibility required at a corner to allow for the observation of other vehicular movement, pedestrians, and cyclists in the proximity of intersecting streets and sidewalks.
Square.An open space available for unstructured recreation and civic purposes. A square is spatially defined by building frontages or streets. Its landscape shall consist of paths, lawns and trees, formally disposed. Squares shall be located at the intersection of important thoroughfares.
Topsoil.Topsoil is the surface layer of soil containing partly decomposed organic debris, and which is usually high in nutrients. This term may also apply to good quality soil sold at nurseries and garden centers.
Tree.Any self-supporting woody perennial plant which will attain a minimum trunk diameter of three inches (3") DBH and normally attains an overall height of at least fifteen (15) feet at maturity, usually with one (1) main stem or trunk and many branches. It may appear to have stems or trunks. The following further define specific tree types.
(1) Tree, large canopy. A tree characterized by its high crown of foliage or overhead canopy, a large woody perennial usually having one trunk and numerous branches reaching a mature height of at least thirty (30) feet and a mature crown of at least twenty-five (25) feet.
(2) Tree, small ornamental. A relatively low growing tree that may grow to a mature height of up to twenty-five (25) feet and a mature crown of up to fifteen (15) feet and provide color due to its fruit, berries, flowers, or leaves.
(3) Tree, protected. Any tree that has a trunk DBH of six (6) inches or greater at a height of four and one-half (4-1/2) feet above the ground or which is otherwise noteworthy because of species, age, size, or rarity.
(4) Tree, replacement. A tree species from the city's approved plant list with a minimum caliper size of three (3) inches and height of seven (7) feet.
(5) Tree, signature. A tree of unique species that is not regularly used or a tree of sufficient size at time of planting, to be no less than 6" in DBH, within a prominent location, or is otherwise distinguished.
(6) Tree, urban. A tree specifically selected for its ability to withstand harsh urban conditions, its relatively low maintenance, its suitability for use in the streetscape through its noninvasive root system and upright branching habit, and its associated imagery and overtones.
Weeds.Vegetation that because of its height and growth pattern is objectionable, unsightly, invasive, or unsanitary; this term specifically excludes ornamental grasses, shrubs, bushes and trees, cultivated flowers, and cultivated crops.
Xeriscaping.A method of landscaping that emphasizes water conservation, accomplished by following sound horticultural and landscaping practices, such as planning and design, soil improvement, limited turf areas, use of mulches, use of low water demand plants, efficient irrigation practices, and appropriate maintenance.
Yard.A yard is defined as an open space adjacent to a building that is generally kept with natural grass and/or plants and is pervious in nature. The following further define specific yard types.
(1) Yard, front. The area extending across the front of a lot between the side property lines and the minimum horizontal distance between the street, the main building, or any projections thereof other than the projections of uncovered steps, balconies, or porches.
(2) Yard, rear. The area extending across the rear of a lot and being the required minimum horizontal distance between the rear lot line and the rear of the main building or any projections thereof other than the projections of uncovered steps, unenclosed balconies, or unenclosed porches.
(3) Yard, side. The area between the main building and the side line of the lot, and extending from the required front yard to the required rear yard and being the minimum horizontal distance between a side lot line and the side of the main buildings or any projections thereof.
(Ordinance 2019-42 adopted 10/8/19; Ordinance 2024-21 adopted 4/9/2024)