Plant library · Shrubs
Pyracantha coccinea
Firethorn is a large, thorny evergreen shrub that brings a strong vertical and visual boundary to sunny garden edges. At about 10 feet tall and 8 feet wide, it is best treated as a permanent structural planting rather than a filler between shorter shrubs. White flowers arrive from late spring into early summer, followed by orange-red winter berries that draw birds.
Use Firethorn along a property line, at the back of a broad border, or against a wall or fence where its dense, spiny growth can form a screen. It can also be trained flat against a vertical surface, making it useful where ground-level bed depth is limited. Keep it away from narrow paths, gates, play areas, and frequent circulation routes, and reserve a reachable side for pruning and tying in growth.[1][2]
Set plants 6 feet apart, center to center, for a continuous hedge or barrier. Each shrub can ultimately occupy an 8-foot-wide footprint, so allow the branches to knit together rather than expecting clear gaps between mature plants. For a single specimen, hold roughly 4 feet of open bed depth on each side of its center and avoid placing smaller plants where thorny branches will overtake their space.
Place Firethorn in full sun for the intended flowering and berry display. Its low-water needs suit a well-drained planting area once established; avoid giving it the lowest, wettest pocket of a bed. It can handle dry conditions and clay soil, but soil that stays waterlogged is a poor fit.[1][2]
The shrub holds its place in the plan through the year, with late-spring to early-summer bloom followed by bright fruit in fall and winter. Leave enough visual room around it for the berries to read against a wall, fence, or open backdrop. Pruning immediately after flowering reduces the following fruit display, so decide whether a tightly clipped outline or winter berry effect matters more.[1][2]
The sharp thorns make this a poor choice beside a route where people regularly brush past the planting. Build maintenance access into the layout instead of relying on reaching through the shrub from a path. In colder exposed parts of its range, a sheltered position away from cold winds is more dependable, especially where winter exposure is severe.[1][2]
Editorial content updated 2026-07-20.