Dendromecon harfordii, known by the common names Channel Islands tree poppy and Harford's tree poppy, is a species of flowering plant in the poppy family.
It was formerly treated as subspecies of the related species Dendromecon rigida, and had the botanical name Dendromecon rigida subsp. harfordii.
A species of flowering plant in the poppy family known by the common names Channel Islands tree poppy and Harford's tree poppy. It is sometimes treated as subspecies harfordii of its relative, Dendromecon rigida. This is a shrub or small tree reaching heights between 2 and 6 meters. It has thin branching stems covered sparsely in smooth-edged, oval-shaped silvery leaves 3 to 8 centimeters long. It bears showy flowers with four bright yellow petals each 2 or 3 centimeters long. The fruit is a curved, cylindrical capsule over 7 centimeters in length.
Channel Island Bush Poppy is spectacularly beautiful, easy to grow and very fast growing. It can grow to 6 feet in two years, and is covered by beautiful yellow flowers most of the year. It likes full sun and well draining soils, though does well in dry part shade also. It likes gentle slopes and flats. They are very tolerant of summer water for their first two years, but when mature, best to cut down to 1x / month or eliminate supplemental water completely, especially if the plant is in part shade.