Quercus to Rhamnus - Notes on the Best Shrubs and Trees

Quercus - Notes

See Oak.

Quick - Notes

See Crataegus and Chapter 24.

Quince - Notes

See Pyrus and Cydonia; also Chapter 18.

Raphiolepis - Notes

The best known is japonica, an evergreen with white fragrant flowers in spring, best grown on a wall and protected with a mat in severe weather. Loam and peat.

Fig. Raphiolepis Japontca (K. OVATA). A fine shrub for a sheltered wall. Photo by E. J. Wallis.

Retinospora - Notes

Handsome small Conifers, which botanists now class with Cupressus, but which are grown in gardens and nurseries under the name Retinospora. See Chapter 17.

Rhamnus - Notes

Buckthorn. These include both evergreen and deciduous species. The most important of the former is Alaternus, a tree growing up to twenty feet high, with green flowers in spring; there are narrow, broad-leaved and silver-variegated forms. The narrow-leaved (angustifolia, syn. Perrieri) is the best. Californiens is also evergreen and grows up to twelve feet high. The most important of the deciduous species is Frangula, the Black Dogwood, which grows up to ten feet high and has greenish-white flowers followed by black fruit; there are narrow-leaved and golden variegated forms; it does well by water. Alpinus is also deciduous and has black fruits. Ordinary soil.