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Pyracantha – Firethorn

Pyracantha coccinea

Pyracantha
Shrubs

A tough evergreen shrub with glossy leaves, clusters of white flowers in spring and heavy crops of red-orange berries through fall and winter. Its sharp thorns make it a natural barrier, and it can be trained flat against a wall as an espalier.

Medium
Full sunpreferred
RedSpring – Fall
Ask a designer about it
Mature size6–12′ tall and wide, depending on variety
Growth rateModerate to fast
Water useModerate; more than most desert shrubs
SunFull sun; avoid hot west exposures
BloomSmall white clusters in spring
Cold hardinessAbout 0°F; no concern in Phoenix
FoliageGlossy, narrow, dark green leaves; evergreen
ThornsYes — sharp spines along the branches

Living with it in the Phoenix Valley

Watering

Follow the shrub schedule in our Landscape Care guide. Pyracantha needs regular water in the low desert, more than most desert shrubs. Keep the soil well drained, though: soggy, alkaline soil is what turns its leaves yellow.

Pruning

Trim lightly after the spring bloom, then again in early fall to open up the berry display. Frequent shearing cuts off the flowers and the berries that follow. Wear heavy gloves; the thorns are sharp.

Yellow leaves

Iron chlorosis, yellow leaves with green veins, is the most common problem in Phoenix’s alkaline soils, especially where the soil stays wet. Better drainage and an iron supplement help.

Pests

Aphids and spider mites can appear. Fire blight, a serious disease in wetter climates, is rare in Phoenix’s dry air.

How our designers use it

A living barrier

Planted along a property line or below a window, its thorny branches discourage foot traffic and give birds cover.

Espalier on a wall

Trained flat against a block wall, it adds green structure without taking up much ground. It does best on east or north walls rather than hot west exposures.

Winter color

The berries ripen in fall and hold into winter, when few other shrubs are putting on a show. Birds will eat them.

Good to know

Around the pool

We keep it away from pool decks, paths and seating. The thorns are sharp, and dropped flowers and berries add litter and draw birds.

Pairs well with

Similar plants

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Picturing one in your yard?

Our designers can show you where it will thrive, what to plant beneath it and how it fits the rest of your landscape.

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