22 



THE NORTH DAKOTA FARMSTEAD 



SIBERIAN PEA TREE (Caragana arborescens) . The Caragana pro- 

 duces a handsome, dense, tall hedge that requires very little pruning. 

 (See Fig. 38). After the leaves drop, rather early in fall, the green 

 bark produces a pleasant effect. It is also desirable for shrubbery 

 clusters. 



RED TWIGGED DOGWOOD. There are several species all of which are 

 very desirable because of the color their bright red bark gives to the 

 winter landscape. There are two Dative forms: Cornus stolonifera 

 and Cornus serica and one imported form: Cornus sanguiana, some- 

 times called, Siberian Dogwood. All are hardy and do well on even 

 fairly dry soils. They need some attention each year to keep down 

 the suckers which they produce. 



Figure 23 Red Twigged Dogwood (Cornus stolonifera} on Experiment Station 



Grounds. 



HAZELNUT (Corylus americana). The Hazelnut is native to North 

 Dakota. A medium to tall shrub, suitable for shrubbery clusters in 

 dry areas. 



THORN APPLE OR HAWTHORN (Crataegus coccinea) is a shrub or 

 small thorny tree, producing white flowers in spring, followed by 

 brighf red edible fruits that are very ornamental lasting far into the 

 winter if not eaten by birds. Both this species and the Large Fruited 

 Thorn (C. punctata) , which is larger and produces more flowers, 

 are native. There are several other Hawthorns that could well be 

 used, among them C. rotundifolia which often does better than the 

 native species. 



RUSSIAN OLIVE (Elaegnus angustifolia) . This is one of the most 

 valuable species for the semi-arid parts of the state. Tt is a small 

 tree or very tall shrub with small, narrow silvery leaves that come out 

 late in spring and remain on the shrub until early winter. Tt pro- 

 duces many small silvery leaves that come out late in spring and remain 



