High Desert Approved and Prohibited Plant List

The vines below are Grandfathered (vines previously allowed or naturally growing).

Trumpet

Grasses

Grasses are plants with narrow leaves growing from the base. They are often herbaceous plants with a low ignition and fuel load. The table’s height and width ranges are estimates, water tends to increase the values. Each genus of grass requires a specific height to ensure enough sunlight to provide the roots the ability to withstand drought and reach nutrients.

Planting Instructions:

Plant and water according to instructions. They can be planted near the home, but not within 5 feet of building structures. Do not plant under or next to shrubs. They can be planted under trees as long as the grass height is maintained at less than 8 inches.

Maintenance Instructions:

Keep grasses well-watered. Maintain the mowed or trimmed height according to the instruction. Remember the root structure requires different grass heights per different grasses. Do not allow plants to become ladder fuels under trees or next to shrubs.

Fire Intensity & Propagation:

Fire intensity and propagations depend on the grass type. The height and width of the grass are the plant’s fire load and its potential fire propagation size. Well-watered grasses (lots of green leaves and a few dead or senescent leaves) are not easily flammable nor subject to fire propagation. The small height size lends these grasses to a horizontal fire. However, all grasses become highly flammable and prone to rapid fire propagation if they are dried out and/or dead. If grass’s heights are not maintained they can become ladder fuels, especially under trees, shrubs, and vines.

Revised November 15, 2022 Page 24 of 33