While flashier but typically weaker modern cultivars of so many other specie are being developed, the most popular of the many cultivars of English boxwood, Buxus sempervirens, remain the same. There is not much to improve on. Most cultivars get only a few feet tall, and are densely foliated with inch long evergreen leaves that are excellent for topiary and low formally shorn hedges.
One of the difficulties with formal hedges, or any formal application, is replacement of any specimens that die. There are not very many of the different cultivars available locally; but it can be quite difficult to distinguish between some of them. One specimen of the wrong cultivar ruins conformity! Another concern is that the aroma of the foliage when disturbed may be objectionable to some.
In the wild, English boxwood grows as small trees or rather larger shrubs with relatively open structure. Locally, such specimens are only very rarely found in old Victorian landscapes, such as at the Winchester House. ‘Suffruticosa’ is so compact that it popularly allowed to grow as as unshorn and nearly spherical shrubs. ‘Argenteo-Variegata’, ‘Variegata’ and ‘Marginata’ are variegated.
Unlike all the fancy and popular Japanese plums and European prunes, wild plum, Prunus americana, is almost never planted intentionally. It is a common understock for the more desirable types, and usually grows as suckers from below graft unions. In fact, it often grows from the roots of plum or prune trees that died or were cut down earlier. They can eventually form thickets.
Classic but simple mirror plant, Coprosma X kirkii, was a utilitarian shrubby ground cover for many years before all the colorful modern cultivars that are so popular now were invented. Individual plants can cover quite a bit of ground without getting any deeper than two feet. It is particularly useful in coastal landscapes, because it is so resilient to wind and exposure, as well as sandy soil.
Avocado trees, Persea americana, grown from seed need to be about five years old to produce fruit that can be considerably different from the fruit from which the seed was taken, although such fruit is almost always quite good. Some trees need to be twice as old to produce. Grafted trees from nurseries are specific varieties that can start to produce their specific fruit immediately.
To avoid confusion with dwarf fescue blue turf grass, Festuca ovina glauca is more familiarly known as blue festuca. If planted close together and left to spread as a small scale ground cover, it is much lumpier and mounding than uniformly spreading turf. It is a clumping perennial that is more popularly grown as distinct tufts of finely textured blue gray foliage that looks like gray sea urchins.
The dark bronze and variegated varieties of tree houseleek, Aeonium arboreum, are so much more popular than the simple species, that the simple species with plain green foliage is now rather rare. The succulent stems do not stand much more than three feet tall. They get about as broad, and can get even broader as lower stems develop roots and grow into new plants. The succulent rosettes of foliage of well watered plants can be fragile to handle. Mature plants can bloom in spring with unusual conical trusses of yellowish or chartreuse flowers.
Even with all the unusual breeds of daffodil and related narcissus that are available nowadays, the traditional big yellow types that resemble the classic ‘King Alfred’ daffodil are probably still the most popular, even if real ‘King Alfred’ are unavailable. Although all narcissus are daffodils, the term ‘daffodil’ typically refers to those with fewer but bigger and bolder flowers that lack fragrance.
The sword of a gladiator was known as a gladio, and it probably resembled the leaves or floral spikes of gladiolus. These narrow and pointed leaves stand nearly vertical, angling only slightly to the left and right of a single flower stalk that can get as tall as six feet. The floral spike supports several very colorful florets that are arranged to the left and right, but tend to lean toward the front.
It is no more in season now than the other stone fruits like apricot, cherry, plum and such, but this is the time of year that almond, Prunus dulcis, needs work. Established trees get pruned while bare and dormant. New trees, preferably bare root, get planted. The most popular modern cultivars available are self pollinating, and labeled as such. Old traditional cultivars require pollinators.
If it got as big as it does in the wild, Oriental spruce, Picea orientalis, would not fit into many home gardens. It can get more than a hundred feet tall! Fortunately, it does not often get much more than twenty five feet tall locally. Trees that compete with taller trees in forested landscapes might get to forty feet tall. Their symmetrically conical canopies get about fifteen or twenty feet broad.