This section is from the book "A Practical Handbook Of Trees Shrubs Vines And Herbaceous Perennials", by John Kirkegaard. Also available from Amazon: A practical handbook of trees, shrubs, vines and herbaceous perennials.
Botanical Name | English Name | 1 Deciduous 2 Evergreen 3 Vine 4 Herbaceous Perennial | Ultimate Height in feet | Color | Time of Bloom | Remarks |
Crataegus crus-galli | Cockspur Thorn | 1 | 12 | White | May | S. A native thorn of great value for hedges and screens. Dense in growth. Leaves dark and glossy; fruit brilliant scarlet. Transplants best in early spring. Many varieties. A.G. |
Crataegus cordata | Washington Thorn | 1 | 10 | White | May | S. Good for hedges and screens; particularly attractive in fall, when its leaves assume a most brilliant color. Fruits scarlet. Transplants best in early spring. A. G. |
Crataegus coccinea | Scarlet Thorn | 1 | 15 | White | May | T. Large leaves. Showy with large scarlet fruit. Good for screens. A very attractive small tree. A. D.G. |
Crataegus oxyacantha | English Hawthorn or May | 1 | 10 | White | May | S. Bushy in growth, making good hedge plants. Completely covered in spring with pure white flowers and in autumn with bright red fruit. A. D.G. |
Crataegus monogyna var. Paulii | Paul's Double Scarlet Thorn | 1 | 15 | Carmine | May | T. Flowers numerous. A showy and pretty tree while in bloom. Rather open habit of growth. A. E.G. |
Crataegus monogyna var. alba pleno | Double White Thorn | 1 | 15 | White | May | T. Large, showy flowers. Open in growth. A. E.G. |
Crocus vernus | Spring Crocus | 4 | 5 in. • | Various | April | Bulbous plants common in gardens. Easy of culture and useful among shrubs or perennials. Can be grown in the grass on lawns, and left undisturbed for several years. Do not mow lawns until foliage has ripened in spring. Plant in August or September. Colors in all shades of blue, white and yellow. A. H. |
Cydonia japonica | Japan Quince | 1 | 5-6 | Scarlet | May | S. One of the most attractive spring flowering shrubs. Flowers large and produced in masses. Foliage dark glossy green. Good in hedges or for massing in the shrubbery border. Inclined to be attacked by the San Jose scale. A.G. |
Cydonia japonica var. alba | 1 | 5 | White | May | S. A form of the preceding with showy white flowers. A. G. | |
Cydonia Maulei | 1 | 4 | Orange | May | S. A distinct and beautiful species of the Japan Quince, with large scarlet flowers about 1 1/2 inches across. A.G. | |
Cydonia Maulei var. al-pina Cynanchum | Dwarf Fire Bush See Vincetoxicum | 1 | 3 | Scarlet | May | S. A valuable low shrub densely covered with showy flowers in spring. Fruits very sweet scented. A. E.G. |
Cypress | See Retinospora | |||||
Cypripedium acaule | Lady's Slipper | 4 | 8 in. | Pink-purple to white | May | Good under trees, or in a shady rock-garden. Handsome solitary Orchid-like flowers with pink sac and brown sepals. C. F. |
 
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