Impenetrable Hedge: Holly (Ilex) makes a dense, impenetrable hedge. There are dark green-leaved, golden-variegated and silver-variegated varieties which may be planted separately or in combination. /. opaca (American holly) is often used for hedging and comes in many variegated forms. Holly will make good hedges about 5-1-Oft in height. It is very hardy and long-lived, but rather slow-growing.
When the leading shoots of conifers reach 6-l2in above the desired height, cut off their tops about 6in below this point. This leaves sufficient space for the hedge's top to create a bushy nature at the desired height of the hedge.See Also Flowering Hedge:Boltonias (Boltonia asteroides) are another genus of asters named after an English botanist, James Bolton. They have common names of false chamomile or the thousand-flowered aster and will grow under most conditions asking only for full sun. The flowering stems are 3 to 4 feet tall and literally covered with starry flowers. 'Snowbank' is the cultivar generally found in American nurseries and persists into Oc¬tober and (like the New England aster) does not mind a few light frosts. These plants can be grown as a flowering hedge and are particularly beautiful in a wild garden.
The large-flowered clematis are divided into several groups according to their parentage. These groups are Florida, flowering mainly in early and mid-summer; Jackmanii, flowering mainly in late summer and early fall; Lanuginosa, flowering at different times between mid-summer and the early fall; Patens, flowering mainly in early to mid-summer; Texensis, flowering mainly from late summer to mid-fall and Viticella, also flowering mainly from late summer to mid-fall.
On The Other Hand See Formidable Hedge:The new leaves are a downy, whitish gray below and a green-gray I above and look like the leaves of a thistle without such sharp points. They Fan out from a ribbed stem that resembles a stalk of celery. Given good soil and a long growing season cardoons should reach 6 feet by summer's end. One plant can be a focal point standing out with regal splendor from other plants scattered about, and if you have the room, a row of these beauties will make a large and formidable hedge.
When the leading shoots of conifers reach 6-l2in above the desired height, cut off their tops about 6in below this point. This leaves sufficient space for the hedge's top to create a bushy nature at the desired height of the hedge.
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