Maintenance is essential in the first 30 feet and these plants require water resources and time. Even some palms such as mexican fan palm washingtonia robusta mediterranean fan palm chamaerops humilis and date palm phoenix dactylifera are too flammable to be used in firescaping.
Many broadleaf evergreens manzanita and especially conifers plants with needle like leaves are full of highly flammable oils that burst into flame with extreme heat.
Firescaping the most flammable plants. Most sources agree that while all plants can burn some are measurably more dangerous than others. They are also one of the most fire prone species and are sometimes referred to as a gasoline bush by firefighters. Plant trees such that when they reach their mature height their canopies will be at least 10 feet apart and their limbs at least 10 feet away from your chimney the roofs of smaller buildings and.
Junipers are coniferous plants in the genus juniperus of the cypress family cupressaceae. They might sizzle and wilt during a fire but will never produce a flame. But what about the most flammable plants the ones you should consider removing or at least not planting.
Beware of flammable plants. Give your plants space. Consider the well known hens and chicks sempervivums sedums ice plants agaves jade plants and yuccas.
Also be sure to remove branches within 15 feet of chimneys and stovepipes. Plants within the first 30 feet of a structure are the most fire retarding. More fire resistant plants trees evergreen shrubs and trees can give you greenery and resist flames too.
Use succulents in the 30 foot defensible zone next to your house and try low growing succulents in the firebreak area beyond that. Hedera juniperus vinca major the list of the most flammable plants and the less flammable plants are compilations of various sources listed in references. Perry wyse and curran s research found the most flammable plants commonly found in new zealand included gorse eucalyptus rimu silver beech and manuka.
Junipers juniperus spp are one of the hardiest most versatile and drought tolerant shrubs. These plants are known for the amount of dead fuel that accumulates inside them high oil or high resin content. Arizona cypress c upressus glabra italian cypress c upressus sempervirens leyland cypress c upressocyparis leylandii.
Cypress trees and shrubs that are especially flammable include. Fire retardant plants can catch and help extinguish firebrands. All sources recommend the removal of these most flammable plants from landscapes.
While the least flammable included. Common name botanical name. More complete plant lists can be found in the firescaping book and at the firesafe marin site.
See zone 1 plants. Where you put each type of plant is as important as the plant species itself.