First, it’s good to know that ALL plants and trees will burn, but some are more susceptible than others. Ones that contain fats, waxes, oils etc are more prone than those that contain gummy resinous sap.

Plants

Groundcover
Blanket Flower
Coast Barrel Cactus
Dwarf Periwinkel
Echiveria
Firethorne
Lavender Cotton
Redberry
Rosea Ice Plant
Trailing Gazania
Sedum
Verbena

Vines
Blood-Red Trumpet Vine
Star Jasmine
White Potato Vine

Perennials
Autumn Sage
California Poppy
Lavender
Lily Of The Nile
Mexican Evening Primrose
Monkey Flower
Penstemon
Red Hot Poker
Sea Lavender
Seaside Daisy
Wallflower

Shrubs

Agave
Aonium
California Lilac
California Wild Rose
Cape Honeysuckle
Elderberry
Golden Yarrow
Matilja Poppy
Mock Orange
Natal Plum
Pomegranate
Photinia
Red Yucca
Scrub Oak

Trees

African Sumac
Citrus Trees
Brisbane Box
California Sycamore
Cottonwoods
Flowering Cherry
Flowering Plum
King Palm
Maple
Oaks
Sweet Gum
Tulip Tree
Walnut
Willow
White Poplar
White Alder

There are of course many more and this is just a selection, your local garden nursery will be able to help you out.

Post from: Portable Fire Pump
Fire Resistant Plants and Trees