Crataegus lavallei ‘Carrierei’ (= C. lavallei)
Habit: Large shrub or small tree, 5-8 (10) m tall, 3-5 m wide, initially stiffly upright to slenderly ovoid, then asymmetrically broad or umbrella-shaped; few thorns; medium to fast-growing, 20-25 cm a year.
Flowers: Large white umbels, single flowers sometimes with touches of pink, end of May to June; plentiful; pungent smell.
Fruits: Like apples, 1-2 cm, brick-red, turning colours late, persistent from October to December, very conspicuous.
Leaves: Late shoots end of May; ovoid leaves, like evergreen; shiny dark green, unusually persistent, orange-yellow in November beginning of December.
Roots: Few twigs, deep roots, not sensitive.
Demands: Sun to light shade; tolerates extreme heat and droughts; very frost hardy; good for urban areas, not susceptible to most diseases.
Soil: Well drained, chalky substrates, dry to fresh, good in industrial areas, moderately tolerant of salt.
Hardiness: Zone 5b
Also see chapter on topiary plants