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Hetz Blue Juniper

A juniper with blue spruce color.

Some junipers that were so popular in the 1950s are now somewhat rare, or redundant to modern cultivars. Although not as common as it once was, Hetz blue juniper, Juniperus chinensis ‘Hetzii Glauca’ is still practical for modern gardens. Most junipers with such bluish gray foliage are either low and sprawling, or upright and tall. Hetz blue juniper exhibits an elegant outwardly flaring form.

Mature specimens can get taller than six feet, and as broad as ten feet. The dense evergreen foliage is not quite as blue as that of blue spruce, but is nonetheless striking amongst deeper green. Straight stems point sharply outward at about the same low angle, but in all directions. Removal of lower growth from old and overgrown specimens might reveal peeling bark and sculptural limbs.

Established Hetz blue juniper with warm and sunny exposure is nicely undemanding. Occasional irrigation through the warmest summer weather maintains color and foliar density. However, color naturally fades slightly and slowly through summer. If possible, selective pruning should completely remove obtrusive stems from their origins. Otherwise, stubs might compromise the natural form.

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Glossy Abelia

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Arching boughs of pink abelia blossoms.

With indiscriminate pruning, glossy abelia, Abelia X grandiflora, will never develop its natural form, with elegantly long and thin stems that arch gracefully outward. Sadly, almost all get shorn into tight shrubbery or hedges that rarely bloom. If only old stems get selectively pruned out as they get replaced by fresh new stems, mature shrubs can get eight feet tall and twelve feet wide.

Against their bronzy green foliage, the tiny pale pink flowers that bloom all summer have a rustic appeal. In abundance, they can be slightly fragrant. The tiny leaves are not much more than an inch long. Vigorous young canes that shoot nearly straight out from the roots slowly bend from the weight of their bloom and foliage as they mature.

Partial shade is not a problem for glossy abelia, but will inhibit bloom somewhat. Young plants want to be watered regularly. Old plants are not nearly so demanding, and can survive with notably less water. If alternating canes is too much work to restore old and neglected plants, all stems can be cut back to the ground at the end of winter. New growth develops quickly.

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Quince

Quince fresh from coastal Santa Cruz!

The function of this formerly popular fruit tree has changed significantly to adapt to modern horticulture. The big but hard fruit of quince, Cydonia oblonga, is less perishable than the firmest pears or apples. Without canning or freezing, it lasts through winter in cool cellars. It also provides pectin for jellies of fruits that lack it. However, quince fruit is too hard to eat fresh, so should be cooked.

As food storage became less important, quince became less popular than more flavorful apples and pears, which are edible while fresh. Pectin is obtainable from apple cores and skins, or from supermarkets. However, quince are not completely absent from home gardens. They are now the unseen but common dwarfing understocks that limit the size of pear trees for suburban gardens.

The big lemony yellow fruits that are ripening now may look like very lumpy pears or apples. The largest sorts get as big as small cantaloupes. Developing fruit and new foliage are distinctly fuzzy. Fuzz can be polished off of alluringly aromatic mature fruit. Delightfully pale pink flowers are mostly obscured by new foliage in spring. The deciduous rounded leaves are two or three inches long.

The biggest of quince trees, which are very different from ornamental flowering quince, might get as high and wide as twenty feet.

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Autumn Sage

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Salvia greggii is a modest sage.

Perhaps in the wild, it blooms in autumn. Where it gets watered in home gardens, even if watered only occasionally, autumn sage, Salvia greggii, blooms all through summer as well. If pruned back severely over winter, it starts to bloom even sooner in spring. The tiny flowers are red, rose, pink, peach, very pale yellow, lavender or white. Some poplar cultivars have bi-colored flowers.

Compact autumn sage that does not get much more than a foot tall is uncommon. Larger cultivars get four feet tall and broad, with more open growth. Most get about three feet high and a bit wider. Without severe winter pruning, stems can eventually get twiggy, with sparse foliage on the exterior. The tiny aromatic leaves are less than an inch long, and visually resemble oregano.

Even though it is not native to California, autumn sage is popular for native landscaping because it does not need much water. Just like native sages, it attracts butterflies and hummingbirds.

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Lemon Bottlebrush

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Hummingbirds enjoy red lemon bottlebrush bloom.

As its compact cultivars gained popularity over the years, the formerly common lemon bottlebrush, Callistemon citrinus, became passe. Most are mature specimens in old fashioned landscapes. It is unfortunate. Only lemon bottlebrush and weeping bottlebrush can grow as small trees. (However, lemon bottlebrush is now classified as Melaleuca citrina. Most Melaleuca get notably larger.)

If competing for sunlight, mature specimens of lemon bottlebrush can almost reach upstairs eaves. Well exposed specimens may not get much more than half as tall, with mounding form of about equal width. Removal of low growth to expose sculptural trunks and handsomely shaggy bark promotes higher growth above. Shearing of hedges should not be too frequent to allow some bloom.

Bright red bloom is sporadic through the year, and gets more abundant as summer becomes autumn. The small and staminate flowers are densely set in cylindrical ‘bottlebrush’ formation. These blooms are about two or three inches long, almost as wide, and popular with hummingbirds. Dense evergreen foliage is aromatic. Individual leaves are narrow and about two or three inches long.

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Carob

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John the Baptist really knows carob.

The locusts that John the Baptist ate out in the desert were not grasshoppers. They were the nutritious locust pods of the carob tree, Ceratonia siliqua. Their familiar sweet cocoa flavor was probably fine for a while, but the starchy texture must have gotten dreadfully monotonous. After all these centuries, carob is still grown for food and as a shade tree.

It takes a very long time for a carob tree to get taller than forty feet. Most are less than thirty feet tall, and not quite as broad. Their rounded canopies are very dense. The stout trunk and limbs are quite sculptural, with variably but handsomely textured bark. The five or six inch long evergreen leaves are pinnately compound, with very glossy round leaflets.

Unfortunately, the big chocolaty pods are abundant enough to be messy if not harvested. Trees that do not produce pods bloom in autumn with seriously stinky male flowers that attract flies for pollination. Some trees are both male and female, so are both messy and stinky. Because carob trees are grown from seed, their gender can not be predicted.

Since they are from the drier regions around the Mediterranean Sea, carob trees really do not crave for much water once they have dispersed their roots. They grow somewhat faster if watered generously a few times through summer, but will survive without it. Too much water will cause buttressed roots that will break nearby concrete.

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Bird Nest Cypress

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Bird nests should be so refined.

Port Orford cedar is a grand tree. It is native to the southern coast of Oregon and the very northwestern corner of California. Mature trees in the wild are more than a hundred fifty feet tall. Some of the older big trees within landscapes are more than forty feet tall. However, the cultivar known as bird nest cypress, Chamaecyparis lawsoniana ‘Nidiformis’ is remarkably diminutive and shrubby.

Bird nest cypress grows slowly, and may never get more than five feet high and wide. Individual plants are mounding with rather flat tops. A row of plants eventually becomes a low informal hedge. Distinctively flat sprays of slightly grayish evergreen foliage exhibit a soft feathery texture. Unless pruned otherwise, abundant dense foliage obscures main limbs with fissured reddish brown bark.

Most cultivars of Port Orford Cedar, including bird nest cypress, are uncommon here. They actually prefer cooler and moister climates. Locally, they are sensitive to harsh exposure and wind while the weather is warm. A bit of partial shade is no problem. Established plants do not need much water, but should not get too dry for too long. Selective pruning, not shearing, sustains natural form.

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Coffeeberry

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Coffeeberry must be and ‘acquired’ taste. (Ick!)

Before the 49ers of the Gold Rush discovered that the seeds of the native coffeeberry, Rhamnus californica (or Frangula californica), make a nice uncaffeinated coffee substitute, the native American Indians were eating the fruit and using the leaves and bark herbally. The black berries supposedly make good jelly, but do not last long, and are too bitter while still red or greenish.

Before the birds get them, the quarter inch wide berries are somewhat colorful, but are not very abundant. The small clusters of tiny greenish yellow flower that bloom in spring are not much to look at either. The army green evergreen foliage is the main appeal. New stems are somewhat ruddy. Old stems and main trunks have smooth gray bark.

Large coffeeberry plants in the wild can get more than ten feet tall, with relatively open branch structure. Garden varieties stay smaller, with compact branch structure. ‘Eve Case’, which is probably the most popular variety, stays less than six feet tall, and is densely foliated. ‘Mound San Bruno’ is even more compact, with smaller leaves. ‘Seaview’ is a groundcover.

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Cucumber

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Cucumber can ripen in summer too.

Is it a winter vegetable or a summer vegetable? Technically, like many vegetables, cucumber, Cucumis sativus, is actually a fruit. It dislikes the locally arid warmth of summer, but also is intolerant of winter frost. It performs best through spring and autumn. Seedlings grown as winter ends should be ready for transplant after the last frost. Vines grown now produce a bit more before first frost.

However, in some gardens, some varieties of cucumber can remain productive all summer. Discolored older foliage is more unsightly than detrimental. Newer growth cascading from above might obscure some of it. Vines can climb trellises or over shrubbery. If vines sprawl over soil, the fruit will stay cleaner if set on leaves or newspaper. Regular harvesting promotes continued production.

Most cucumbers are classified as slicing, pickling or seedless cucumbers. There are many varieties within each classification. The most popular are only a few inches long, and harvested before maturity. The largest cucumbers are as long as two feet, and as wide as four inches! Hot weather unfortunately causes cucumbers to be bitter. Rich soil and regular irrigation promote better flavor.

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Sea Foam Statice

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Statice flowers last fresh or dried.

Many of us who already grow sea lavender, Limonium perezii, might wonder why it is a topic for August. In the mildest spots, it gets more credit for blooming in winter while most other plants are dormant. Yet, it is actually classified as a summer blooming perennial because it blooms more reliably though summer in most places.

Bluish purple blooms stand more than two feet tall, just above coarse mounds of evergreen basal foliage that gets more than two feet wide. Each billowed bloom contains many tiny flowers. Larger blooms are too heavy to stand upright, so they lay down on the foliage. The weirdly wavy leaves are on such long petioles (leaf stalks) that they may lay down too.

Established plants do not need much attention or water. Faded bloom should be pruned away. It is not practical to remove all of the faded foliage. Every few years or so, old plants can be reinvigorated by getting divided. Newly divided rhizomes will need to be watered regularly until they disperse their roots. Sea foam statice likes full sun exposure.