Showy Stonecrop

60914They sure took their time getting this far along. The bluish green succulent foliage of showy stonecrop, Hylotelephium spectabile, (formerly Sedum spectabile) first appeared at ground level in early spring, and has been growing into rounded mounds so slowly that it now stands less than three feet high and wide. Smaller types are half as big. Blooms are only now beginning to turn color.

Broad and flat-topped floral trusses of minute flowers are almost always some sort of pink. Sometimes, they are almost terracotta red. Sometimes, they are somewhat peachy. They might even be blushed with a bit of lavender. ‘Stardust’ blooms white. The biggest blooms can be as wide as five inches. If not pruned away as they fade, the blooms (according to some) dry nicely by winter.

New growth starts to appear from the ground almost as soon as old stems die in late winter. Established clumps can be divided in spring every few years. Even small plants can spare a few small pups that will grow into new plants. Stems might get taller in partial shade, but might also need to be staked as they bloom. Bees really flock to the flowers because not much else blooms so late.

Glossy Abelia

50916With 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.

Lion’s Tail

80919It does not get much more orange than this. Lion’s tail, Leonotis leonurus, tends to start with a relatively light duty bloom phase in the middle of spring, and then continue blooming in increasingly prolific phases until it finally culminates with the most spectacular bloom phase of the year about now, late in summer or early in autumn. The bloom is about as bright orange as California poppy!

Deadheading and pruning between bloom phases is not as simple as it might seem. Cutting back too aggressively postpones the next bloom phase. Bloomed stems should instead be cut back just below the deteriorating blooms. This unfortunately allows maturing plants to get somewhat overgrown and in need of more severe pruning over winter, before their first bloom phase of spring.

By now, well blooming plants may be as tall as six feet. As they mature, plants tend to get a bit wider than tall. The narrow evergreen leaves are about three inches long. Bloom is typical of related salvias, with dense tufts of tubular flowers neatly arranged in tiers on upright stems. Lion’s tail just happens to bloom with distinctively wide floral tufts. Cultivars with yellow or white flowers are rare.

Blue Marguerite

60907Most blue flowers are blushed with purple to some degree. Except for lily of the Nile, true blue flowers are quite uncommon. Even with their yellow centers, the tiny daisy flowers of blue marguerite, Felicia amelloides, seem to be too blue to be real. They are almost expected to fade to lavender. Bloom may not be as full as it was a month ago, but continues as long as the weather is warm.

Mature plants are usually less than a foot and a half tall, and not much wider, with a symmetrically rounded form. The branches are rather fragile, and can be broken by something as trivial as a clumsy cat. They really are not strong enough for bouncy dogs or children. Yet, their tiny oval leaves are just raspy enough to deter deer. Unfortunately, blue marguerite plants live only a few years.

Schedule Adjustment

P80624Something that I neglected to consider about the first year anniversary of this blog is that what was new is now old. The articles from my weekly gardening column that were new when posted last year are now a year old. That necessitates an adjustment to scheduling.
Recent articles get posted on Mondays and Tuesdays. Each article gets split into two separate posts. The first part on Monday is the main article, which is about a specified horticultural topic. The second part on Tuesday is about the featured species. Older articles from the same time a year earlier get posted in the same manner on Thursdays and Fridays. That format worked well until now. Articles that were new in the beginning of September of last year are scheduled to be recycled now, for the beginning of September this year.
Obviously, there is no point in posting the same articles twice. ‘Flowers Might Be Getting Scarce’ and ‘Fernleaf Yarrow’ were already recycled earlier, before I noticed that they were two of the first articles posted a year ago. The simple solution would be to back up a year, to recycle articles from 2016 instead of from 2017. However, those articles were already recycled on Thursdays and Fridays. Therefore, the schedule will be backed up even farther, to recycle articles from the same time in 2015. I am trying to keep this simple. Of course, no one should notice. The articles are appropriate to the season regardless of what year they were written in.
What might get noticed is that a few extra articles will be added to the mix. This will only continue between about now and the beginning of November, which was when I started recycling articles last year. Because the blog started in the beginning of September, and I started recycling year-old articles in the beginning of November, there are articles from September and October (between about September 1 and November 1) of 2016 that have not yet been recycled. I want to use them up just to that none get left out.
This is probably way more explanation than anyone needs, particularly since it is mostly in regard to something that should not get noticed; but it will explain the few extra articles between now and November. If I get a bit of time later today, I might add the first of the superfluous articles tonight.

Autumn Sage

50909Perhaps 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.

Creeping Myoporum

80912The familiar sandalwood, Myoporum laetum, that is such a resilient small tree or big shrub in windy coastal climates, might make the wrong impression for the less familiar creeping myoporum, Myoporum parvifolium. Creeping myporum does not get much more than a foot high unless it climbs over stones or other obstacles, and it might stay less than six inches deep in exposed spots.

The evergreen foliage is dense enough to prevent most weeds from getting through. The tiny and narrow leaves are only about half an inch or an inch long, perhaps a bit longer. Clustered white starry flowers that begin to bloom late in spring continue to bloom through summer. Although tiny, and neither profuse nor remarkably showy, they are a nice accent to the rich green of the foliage.

Creeping myporum prefers full sun and occasional watering. It rots easily if watered too much. Its other weakness is that it does not tolerate traffic well. Creeping myoporum is a low growing shrub with woody stems that can break if trampled on. Individual plants can get ten feet wide if they get the chance. They are typically planted much closer together so that they cover the ground faster.

Fernleaf Yarrow

70830‘Moonshine’ is probably the epitome of fernleaf yarrow, Achillea filipendulina, even though it is technically a hybrid. From the middle to the end of summer, its three inch wide corymbs (flat-topped trusses) of tiny bright yellow flowers stand as high as three feet above ferny and gray basal foliage. Bloom is best in full sun and warm exposure. Established plants do not need too much water.

Most varieties of fernleaf yarrow also bloom with bright yellow or gold flowers. Some might bloom with pale yellow, rosy pink, pale pink, reddish, white or pink and white flowers. All are good cut flowers, and can be dried. Some varieties are more compact. The most compact varieties work nicely in planters of mixed perennials. Butterflies and hummingbirds find them wherever they are.

Pruning out deteriorating blooms may promote sporadic subsequent bloom until autumn. However, some plants may bloom all at once, and then not bloom again until the following summer. Large blooms on the most vigorous plants may need to be staked. New plants can be propagated by division from mature plants. ‘Moonshine’ and many other cultivars are sterile. Others might self sow.

Cosmos

80905Their pastel hues and blends of pink, lavender, near red and white are so perfect for the middle of spring when cosmos, Cosmos bipinnatus, begin to bloom. They are just as perfect as bloom continues right through summer and almost to autumn, when the tall and airy plants finally begin to wear themselves out. If they continue through autumn, they eventually succumb to frost in winter.

Individual flowers are as delicate as they look, but are prolific. New flowers replace older flowers a quickly as they fade. Deadheading promotes even better bloom. A few of the last flowers to bloom can be left as the season ends to sow seed for next year. However, fancy cultivars are not true to type, so subsequent generations will be more like the basic specie, with simpler flowers.

Cosmos likes full sun exposure, rich soil and regular watering. Mature plants are about two or three, or even four feet tall, although the most popular varieties stay shorter and more compact. The species name of ‘bipinnatus‘ refers to the pinnate leaves that are divided into very narrow lobes that are also divided into even narrower lobes. The collective foliage is very delicate, lacy and airy.

California Bay

70823Just because California bay, Umbellularia californica, can be used like Grecian or sweet bay for culinary purposes does not necessarily mean that it should be. California bay has a stronger and much more pungent flavor and aroma. Some might suggest substituting less than half California bay for Grecian bay. However, even if the intensity is adjusted accordingly, the flavor might be off.

As the name suggests, California bay is native to California. However, because it is from rainier climates, it prefers a slight bit more water than it would get naturally in the drier parts of the local chaparral climate. It provides nice cooling shade in large landscapes, but is a bit too dark and messy for refined home gardens. The aromatic leaf litter can annoy delicate annuals and seedlings.

Well exposed trees can eventually get more than thirty feet tall and almost as broad. Forest trees that compete with other trees can get a hundred feet tall! Small trees can be shorn as hedges. If not watered too generously, the roots tend to be rather complaisant. However, old trees can eventually develop massively distended burl growths known as lignotubers at the bases of their trunks.