Cedrus- Cedar

Magnificent, vigorous conifers; their sole disadvantage is that they grow too large.

Situation:

We see cedars growing in front of terraced houses, about two metres from the house wall. In the course of twenty or thirty years, the tree will grow to at least 8 m across at the base, with a height of 8-10 m. Soon afterwards the entire house will be covered by the tree. Only the slow-growing cultivar ‘Aurea’ is suitable for such a situation; all other forms need plenty of space.

Soil:

Will grow in practically any type of soil, provided the water level is not too high. A certain amount of lime is tolerated.

Propagation:

The species can be grown from seed. Cul-tivars are usually increased by grafting.

Cedrus atlantica, Mount Atlas cedar: Height to 30 m, at least 8 m across at the base. Grown in a free-standing position, it will retain even its lowest branches. Usually the needles are blue grey or silver grey, to 3 cm long, curved at the tip. The branches grow upwards and do not attain the horizontal position so typical of the cedar of Lebanon until an advanced age. The brown cones grow to 8 cm in length, 3-5 cm across. The golden-yellow cultivar ‘Aurea’ remains much smaller . It is fairly tender, but will nevertheless grow in a temperate climate. The best known and strongest form is called ‘Glauca’, with fine blue-green to blue-grey needles. As these trees are usually grown from selected seed, there is a good variety of cultiv-ars. Choose your specimen with care. A little known weeping form of the blue cedar is called ‘Glauca Pendula’. Cedrus deodara, Himalayan cedar: Tree growing to 20 m, at least 8 m across at the base. Grows more slowly than the blue species. The main branches spread horizontally, the young shoots droop. The needles are blue-green or greyish in colour, becoming darker with age. Cedrus libani, cedar of Lebanon: Height to 40 m, very wide.

Caryopteris

Little known shrubs, not entirely winter-hardy; they flower profusely in autumn.

Situation:

Provided it is given a sheltered position,

Caryopteris may survive the winter; full sun is desirable.

Every spring all dry wood should be removed, since the shrub flowers on the new wood.

Soil:

Nutritious garden soil, which must not be too damp; some lime may be added.

Propagation:

Garden varieties are increased only from cuttings taken in summer.

Caryopteris X clandonensis: Height to 100 cm; blue flowers in long-stemmed plumes in early to mid autumn; small, oblong, grey-green leaves with smooth edges. The finest garden variety is ‘Heavenly Blue’, which is deep blue in colour.

Caryopteris incana: Height 50 cm; fragrant violet-blue flowers in late summer and early autumn; the leaves are larger than those of the previous species.

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