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Annuals Change With The Seasons

50930thumbLike it or not, the warm season annuals that were so flashy all through spring and summer will eventually need to be replaced with cool season annuals to provide color through winter. It is always unpleasant to pull up the annuals of a previous season while they are still blooming, even if they are already getting scruffy and discolored. It is actually easier if they got roasted by recent warmth.

Some warm season annuals last longer than others. Many are actually perennials that can be overplanted with new cool season annuals as they get cut back or go dormant through their ‘off’ season. Some cur back perennials may not survive through winter; but those that do can regenerate next spring, just as the cool season annuals that obscured them all winter are finishing.

Wax begonias, for example, are warm season annuals that can continue to bloom until they get frosted. Where sheltered from frost, they only need to be cut back because partial defoliation exposes knobby bare stems. If they can be hidden by pansies or violas through their bare phase, they never need to be removed, and some will be happy to regenerate in spring.

Conversely, cyclamen, sweet William, chrysanthemum and some primroses are cool season annuals that have the potential to survive under the lush growth of warm season annuals next summer; but that is a topic for later. (Some people are allergic to primroses like poison oak.) Iceland poppy and ornamental cabbage and kale are not so perennial, but are quite colorful through winter.

Alyssum and nasturtium really are annuals that do not survive much more than one year. However, they can perform through summer where sheltered from heat, or through winter where sheltered from cold. In ideal situations, their self sown seedling replace deteriorating older plants, so that they can perform throughout the year. Nasturtium should be planted as seed, not from cell packs.

Calendula is a popular cool season annual early in the season, but may not last through the end of winter. Yet it is popular because it is so excellent through autumn. Chrysanthemums are even flashier, although they are often replaced as soon their first bloom phase finishes.

Posted on by tonytomeo · 24 Comments

Six on Saturday: Gazania

 

Gazanias were not planned. The English daisies that were planted last spring as warm season annuals that might hopefully continue as perennials succumbed to rust. Seriously! This rust was nasty! I had no idea that English daisy was so susceptible to rust! They were so ugly that they needed to be removed. They were replaced with the gazanias a bit more than half way through.

Gazanias are not the flashiest of choices for the prominent planters that they went into, but they work. If they continue to bloom through winter, they can stay as long as they like. If they stay long enough to get bald spots, we can trim around the edges and plug the scraps back into the bald spots. I would rather put a bit of effort into maintaining them than replace them as the seasons change.

These pictures were taken about two weeks ago, along with the picture of the gazania that was posted last week. For some unknown reason, the gazanias are presently taking a break from blooming.

1. White is actually not my favorite color for gazanias. Yes, white is my favorite color. I just think that gazanias are at their best in brighter colors like yellow and orange. This white is not the best anyway. It looks like very pale yellow to me.P80922

2. Yellow, in conjunction with orange, is one of the two classic colors for gazanias, and is one of my two favorites . . . in conjunction with orange.P80922+

3. Orange is the other half of the caption to the picture above. (Just read the same caption, and switch ‘yellow’ for ‘orange’, and ‘orange’ for ‘yellow’.)P80922++

4. Pink might really be light burgundy. It was a bit darker when it first bloomed. This might be one of those colors that only girls can identify.P80922+++

5. Yellow with red stripes looks like something that blooms in the garden of Ronald McDonald.P80922++++

6. Cream with burgundy stripes looks like something that blooms in the garden of a clown with slightly more discriminating taste.P80922+++++

This is the link for Six on Saturday, for anyone else who would like to participate:

https://thepropagatorblog.wordpress.com/2017/09/18/six-on-saturday-a-participant-guide/

Posted on by tonytomeo · 6 Comments

Start Cool Season Annuals Early

30925Twice a year, it becomes necessary to discuss the unpleasantries of pulling up the flowering annuals (as well as vegetable plants) of one season, to relinquish space for those of the next season. Just a few months ago, cool season annuals got replaced with warm season annuals. Now, those same warm season annuals will get replaced with cool season annuals for the next few months.

It is unpleasant because the outgoing annuals are probably still blooming when it is time for them to go. It might be easier to wait for cool season annuals to get roasted by hot weather, or for warm season annuals to get frosted. Unfortunately, by that time, the incoming annuals would be at a disadvantage. Hot or cold weather is also uncomfortable for plants that are not yet established.

Sure, warm season annuals like warmth, but only after they have sufficiently dispersed their roots to sustain their growth during warm weather. This is most efficiently accomplished while the weather is still mild earlier within their season. Cool season annuals likewise do not mind cool weather, but do not grow as well as they do during the warmer weather earlier within their season.

This is why it is better to plant pansy, viola, sweet William, Iceland poppy, stock, calendula and the various primroses earlier rather than later if possible. There is no exact science here. A forecast for warm weather certainly justifies delay. Cyclamen and ornamental cabbage and kale are a bit more sensitive to warmth, so could wait a bit longer. They grow well through cold weather anyway.

Chrysanthemum, alyssum and nasturtium are odd ones. Chrysanthemum, although perennial, is most often planted as a short term autumn annual while it is already blooming or is just about to bloom. It rarely gets a second chance if it finishes bloom before winter. Alyssum and nasturtium can be both warm and cool season annuals. They only gets replanted this time of year because individual plants perform through one season or the other, but probably not both. Nasturtium should be grown from seed.

Posted on by tonytomeo · 33 Comments

Six on Saturday: Again – Not My Garden

 

There are just too many cool things blooming in my colleague’s garden to not get some more pictures. Some may seem to be redundant to others that were shared earlier, as well as to some that have not been shared yet. The unknown salvia and lion’s tail are finishing their bloom, as it the know what time of year it is. The weather may not seem like that of late summer, but they know otherwise. I got these pictures while I could. African iris and African daisy are oblivious. They bloom whenever they want to, and African iris can even bloom a little bit through winter if it chooses to. Autumn sage, as the name implies blooms best about now. Of these six, only the four O’clock will deteriorate in autumn and die back through winter. The salvias will get pruned back anyway.

1. Four O’clock, Mirabilis jalapa, are the same as those featured last Saturday in Six on Saturday, and in the following brief article about the individual plants that bloom with flowers of different colors. This one looks like a blob of mustard with a bit of ketchup that squirted out of a hamburger as someone bit into it. The rich red flower in the background that looks more like plain ketchup is on the same stem.P80908

2. Autumn sage, Salvia gregii, is a different cultivar of the same species featured yesterday. The picture that was posted yesterday was from a specimen in the landscape at the library in town. This picture is that of a cultivar of smaller stature but with bigger flowers. The zonal geraniums of questionable (pink, salmon, peach or whatever) color that were featured last week can be seen in the background.P80908+

3. Black and blue salvia, Salvia guarantica, looks just like this. . . or this looks just like black and blue salvia. I really do not know what it is. It sure is an exquisite blue though. The base of the plant is rather scrawny, almost as if it intends to grow only as an annual. It will get cut back like other salvias, but not as aggressively. If it regenerates from the base like it should, the old growth can be cut back later.P80908++

4. Yellow African iris, Morea bicolor, is sort of cliché. However, this is the only one anywhere around. Seriously, with all the many acres of landscape that my colleague maintains out there, this is the only one. The more common white African iris, Dietes iridioides, is lacking completely. (‘Dietes‘ and ‘Morea‘ are synonyms, but ‘Dietes‘ is uses more for the ‘iridiodes, and ‘Morea‘ is used more for the ‘bicolor‘.)P80908+++

5. African daisy, Osteospermum ecklonsis, looks something like gazania. There are plenty pictures of gazania as well, but I will use them for the next two weeks. This species of African daisy is shrubbier and more colorful than the sprawling types that were popular as ground cover back in the 1980s. It blooms more profusely, and with more vivid colors. I probably should have gotten pictures of the other colors too.P80908++++

6. Lion’s tail, Leonotis leonurus, will be featured in my weekly gardening column this week, which shows up here on Tuesday. I am no fan of orange, but I can not dislike this bloom. The color is as flashy as that of California poppy. I will never understand why this perennial is not more popular than it it. It has been available longer than some of the less impressive salvias, but salvias are trendy. They are related of course.P80908+++++

This is the link for Six on Saturday, for anyone else who would like to participate:

https://thepropagatorblog.wordpress.com/2017/09/18/six-on-saturday-a-participant-guide/

Posted on by tonytomeo · 1 Comment

Different Time Zones

P80901KIf the flower on the left is a four o’clock, is the flower on the right a five o’clock, or perhaps a three o’clock? Is one a.m. and the other p.m.? What about the flower of the same species that I featured twelve hours ago? What about those in another picture that I will share next Saturday?
Of course, only the colors are different; not the name . . . or the time.
What is odd about these two seemingly different flowers is that they are on the same plant. In fact, they are on the same stem, separated only by a few inches.
Four o’clocks can be odd that way. Individual plants typically bloom with exclusively pink, red, white, yellow or orange flowers. The shades and hues of these colors are variable, but are typically homogeneous throughout each entire plant.
Some plants bloom with flowers of one color that are spotted or variably striped with another. Their flowers are not as homogeneous as those that bloom with only one color, so some of their flowers might be uniformly one color or the other, without spots or stripes. Some plants bloom with a few different colors!
Distinctly bright pink (but not light pink) flowers seem to be the most fragrant and the least variable, typically devoid of spotting or striping. They may be more closely related to the wild species, as it would have been found in its natural range in the Andes, prior to breeding for more interesting colors. Perhaps, after enough generations, other four o’clocks would eventually revert to the same characteristically fragrant bright pink flowers, just like many varieties of nasturtium eventually revert to standard bright orange and yellow. It is hard to say now, while naturalized four o’clocks have yet to do so.

Posted on by tonytomeo · 31 Comments

Six on Saturday: Not My Garden

 

My garden really is not much to talk about. Really. It is just a bunch of redwoods with a bit of other native vegetation dominating the few items that I added into the mix. There are fourteen stock fig trees, but they are very small and mostly obscured by the underbrush. The elderberries, currants and huckleberries are the same as what grows wild, so they do not look like much either. Even the cane berries look very similar to the native blackberries. There is a quince tree, some rhubarb, and some small prickly pear, but they are barely visible amongst the other vegetation. Well, that is enough talk about why my garden is not much to talk about.

These pictures are from one of the gardens that one of my colleagues maintains.

1. Hibiscus is probably the flashiest bloom in this garden now. I have no idea what cultivar this hibiscus is; and I am not even certain about the species. It sure is impressive though. This flower is more than six inches wide!P80901

2. Red honeysuckle is something that I really want to grow, but can not justify it. I mean, it does not exactly ‘do’ anything more than look good. It is not fragrant like Japanese honeysuckle is. This one took a while to bloom.P80901+

3. Zonal geranium happens to be one of my favorite perennials, even if others consider it to be too cheap and common. I do not know if this one is pink, peach, salmon . . . or one of those odd colors that only girls can see.P80901++

4. Mandevilla is my best guess. Again, I do not know the species. Did I mention that this is not my garden? I do happen to like this one though, because it is so perfectly white. Otherwise, I am none too keen on mandevilla.P80901+++

5. Morning glory is quite happy here. This one is annual of course. There was a perennial white morning glory known as a moonflower nearby, but it succumbed to frost last winter. Hope for its recovery ran out months ago.P80901++++

6. 4:00 (four o’clock) is a prolific naturalized exotic species. I would not say that it is invasive, but merely prolific. I do not know if this one is 4:00 a.m. or 4:00 p.m., but I do know it will not be the last. More on that later.P80901+++++

This is the link for Six on Saturday, for anyone else who would like to participate:

https://thepropagatorblog.wordpress.com/2017/09/18/six-on-saturday-a-participant-guide/

 

Posted on by tonytomeo · 4 Comments

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.

Posted on by tonytomeo · 8 Comments

Flowers Might Be Getting Scarce

70830thumbIt makes sense for flowers to bloom in spring. Winter is too cool, windy and damp for both flowers and the insects that pollinate many of them. By summer, successfully pollinated flowers have faded, are busy making seed to disperse in autumn. Some plants produce fruit to get birds and other animals to disperse their seed. There are certain advantages to blooming early in the spring.

Native plants that are endemic to chaparral climates are quicker with bloom, so that they finish before the air gets too arid. Desert plants might bloom for less than a week. Some tropical plants might bloom whenever they want to because they do not understand the concept of seasons, but they are not the prominent plants in our gardens. Therefore, flowers get scarce this time of year.

Besides the few perennials and annuals that bloom as long as the weather stays warm, there are not many plants that bloom reliably so late in summer. Belladonna lily, which is also known as naked lady, might be one of the flashiest, as its bright pink flowers bloom on top of bare stalks before the low basal foliage develops. It was actually dormant through the warmest part of summer.

Billowy and bold pampas grass flowers bloom this time of year, but are uncommon. The boldest type of pampas grass is too big and difficult to manage for home gardens. The smaller type has dingy tan flowers, and is so invasive and weedy that it is unavailable in nurseries. Those of us who have it in our gardens did not plant it. Other grasses with nice late flowers are not very colorful.

Russian sage has become one of the more popular late blooming perennials. More traditional Japanese anemone, goldenrod, lion’s tail and showy stonecrop all seem to have lost popularity over the years. Mexican blue sage should bloom best late in summer, but often finishes sooner than expected. Yarrow often blooms later than expected, until summer ends. Marigold, blanket flower and some sunflowers bloom until frost. Chrysanthemums, whether grown as annuals or perennials, are just beginning late in summer.

Posted on by tonytomeo · 16 Comments

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.

Posted on by tonytomeo · 4 Comments

Flowers For Late Summer Bloom

80905thumbNo mater how much work we put into our roses to sustain bloom all through the season, and not matter how successful we are with that endeavor, the first spring bloom is always the best. Some roses continue to bloom in floriferous phases afterward, while others bloom sporadically but continually; but there is nothing like the first bloom phase. The last blooms are just waiting for autumn.

Of course, concentrating resources into early bloom is very sensible. That is why so many plants bloom only once in spring. It gives them time to get pollinated, develop seed and fruit structures, and finally disperse their seed or fruit structures, all before winter. Plants that bloom in summer or autumn are either from regions where winters are not too harsh, or where summers are harsher.

Because summer weather in most regions tends to be warmer and drier than spring weather, flowers that prefer to bloom in summer tend to be more prolific but smaller and less colorful. By this time of year, they are more reliant on wind for pollination rather than insects anyway. Therefore, they do not need to be big and colorful to attract pollinators, although some are fragrant just in case.

Sunflower, blanket flower, cone flower, zinnia, cosmos, delphinium, dahlia and of course rose, are some of the favorite flowers in the garden as well as for cutting in late summer and into autumn. Cut dahlia flowers should get their water changed daily so that they do not rot and smell bad so soon. Canna blooms about now, but does not last so well as cut flowers. Lily-of-the-Nile is finished.

Believe it or not, lemon bottlebrush is a delightful cut flower for those who are not allergic to it or repelled by the aromatic foliage. So are some of the showier eucalyptus, such as the red flowering gum, Eucalyptus ficifolia. Mexican blue sage that was cut back to the ground over winter blooms a bit in spring, takes a bit of time off through summer, and then starts to bloom as summer ends, ultimately blooming spectacularly early in autumn. A few other sages bloom as late, but few are good for cutting.