Unhappy Fishtail Palm

Now that the foliar color has improved, the foliar density is deteriorating.

Fishtail palm is never completely happy here. It is not much happier in Southern California. Even the happiest are discolored to a minor degree. Many are more significantly discolored. Some are so very discolored that they are visually unappealing.

No one seems to know why. I suspect that they would prefer more humidity. Perhaps they prefer more humid warmth. They may dislike the pH of the soil.

Furthermore, fishtail palms are monocarpic. Each trunk dies after bloom. Clumping sorts develop new trunks prior to the demise of a blooming trunk. Those that do not develop replacement trunks die completely.

The illustration above is obviously not of exemplary quality. I took it from the car while driving. This was on northbound Highway 101, at the northern extremity of Pismo Beach. The palm to the upper left of the sign for Spyglass Pointe, with the yellow arrow pointing at it from above, is a fishtail palm. Until recently, it had been famously chlorotic.

Colleagues who drove through Pismo Beach typically asked me about this palm after seeing how chlorotic it typically had been. This it he least chlorotic that I have ever seen it. However, it may be naturally deteriorating after its primary bloom. Although I have not observed any bloom, I can see that new leaves are not developing on the same rate that They had in the past. This picture shows it with only a single open leaf, with another foliar spike extending from the terminal bud.

This particular fishtail palm is not very old. I can remember when the associated residential buildings were constructed less than two decades ago. landscapes and associated trees were added shortly afterward. Since then, the fishtail palm had been unhappy. This likely why fishtail palm is not more commonly available here than it is.

Beyond Fresh Cut Flowers

Palm fronds are striking cut foliage.

Most flowers bloom in spring. Many bloom a bit later and though summer. Not nearly so many start to bloom in autumn or though winter. This time of year, there is more to clean up from fading blooms than there are fresh blooms to cut and bring in.

Much of the color in the garden through autumn is provided by colorful foliage or foliage that gets colorful as the weather gets cooler. Later in winter, some plants have colorful bark and stems that gets revealed by winter defoliation. Coral bark Japanese maple, red twig dogwood and some arctic willows have remarkably colorful twigs.

Blooms of a few plants are sometimes cut and recycled after they fade because their dried flowers, flower stems or seed pods are appealing. Hydrangeas are not so attractive as they deteriorate out in the garden, but can be cut and hung upside down to dry to substitute for fresh flowers later. If done quickly, many types hold their color somewhat. Those that do not hold their fresh color may turn an appealing shade of brown.

Queen Anne’s lace can likewise be a nice dried flower, but is not so easy to hide in the garden while it dries. If cut and hung to dry, individual stems should be hung separately, since they bend and are difficult to separate if hung in clusters. Their flat-topped flower trusses curve inward as they dry, so they look nothing like they do fresh.

The rigid flower stems of New Zealand flax are rather sculptural protruding from their softer foliage. These same stems can be cut, plucked of seed pods, and like dried hydrangeas, used as cut flowers when there is not much else to get out of the garden. Ironically, New Zealand flax flowers sometimes get cut before they bloom, since not everyone appreciates their contrast against their own softly textured foliage.

Years ago, New Zealand flax flower stems were actually dried and spray painted! For those daring to try this technique, it also works well with lily -of-the-Nile flowers stems and trusses (plucked of their seed pods), Heavenly bamboo flower stems, and even dried pampas grass blooms. However, pampas grass blooms are deprived of their fluffiness and most appealing quality by spray paint. Bird-of-Paradise leaves twist interestingly as they dry, to provide texture with or without paint.

Fronds (leaves) of some fan palms can provide bold cut foliage. Mediterranean fan palm is difficult to handle because of the nasty teeth on the stalks, but has nice rounded leave that fan out nicely behind other flowers. They can be cut into smaller fans, or even other not so rounded shapes. Windmill palm is much easier to handle, but is a bit larger, so is more likely to need to be trimmed to shape. All are easy to cut with common scissors, and can be dried and spray painted.

There is probably more in the garden to substitute for cut flowers than would be guessed. Useful plant parts can be found in the least expected of places.

Defoliation Is A Messy Process

Defoliating deciduous foliage must go somewhere.

Autumn foliar color eventually gets messy. Actually, any deciduous foliage can become messy during its autumn defoliation. Color is not a prerequisite. Some deciduous foliage remains green through the process. Furthermore, some evergreen foliage contributes to the mess. A few evergreen species shed a bit more as the weather becomes more wintry.

Contrary to popular belief, deciduous vegetation is neater than evergreen vegetation. It only seems to be messier because it defoliates completely at once. Also, such complete defoliation exposes bare stems. Evergreen vegetation sheds slower throughout the year. As it replaces old foliage with new, it sheds more in seasonal phases, but incompletely.

Deciduous leaves also seem to be messier because they are generally bigger. They do not disintegrate into landscapes as efficiently as tiny evergreen leaves do. They require raking from lawns, as well as groundcover that can absorb smaller leaves. So, they fall most abundantly, and dissipate least efficiently. That is why defoliation is so very messy.

Defoliation of deciduous foliage occurs at both the best and worst time of year. It allows more warming sunlight into homes and gardens while the weather is cooling. It leaves deciduous trees more resilient to eventual windy wintry weather. However, it gets messy while the weather begins to get less conducive to gardening. Summer is about finished.

It truly is ironic. Rain and wind will eventually dislodge the last deciduous foliage during winter. Rain is also why this same foliar debris must not clog eavestroughs and gutters. Yet, it is why removal of such debris can be such an unpleasant chore. Removal of foliar debris from hardscapes is also important. It stains and gets slippery if dampened by rain.

While defoliation decreases shade above, it can increase shade below. Accumulation of foliar debris can detrimentally overwhelm turf and groundcover. Some large leaves can do the same on top of dense shrubbery. Fungal pathogens proliferate within the dark and stagnant dampness below such debris. Shade from such debris inhibits photosynthesis.

Autumn Foliar Color Takes Planning

Some Norway maples are colorful through summer, and then turn yellow for autumn.

Spray paint is no way to get good autumn color in the garden. The healthy rich green king palm out front would look ridiculous and be very embarrassed, not to mention unable to breath, if it were painted yellow, orange and red, like the sweetgum trees that will soon be getting so colorful in the neighborhood now that the weather is getting cool.

Just like every other feature in the garden, autumn foliar color takes proper planning. Most of the plants with the most impressive autumn color happen to be substantial trees, so are not as easy to accommodate in as many situations as flowering annuals are. There are a few smaller shrubby plants and perennials that provide autumn foliar color, but almost all are deciduous, so defoliate to leave bare branches through winter.

Boston ivy (which is not really ivy) is probably the most colorful of climbing vines. It is a bit too aggressive for small spaces though, and damages painted surfaces and just about anything that it gets a hold of. It is best on concrete walls, which is why it is so prominent on freeway soundwalls and overpasses. Grapevine and wisteria are only moderately colorful.

Currant, crape myrtle, pomegranate, smoke tree and redbud are a few of the shrubby plants that provide good color in autumn. Crape myrtle and Eastern redbud are actually more commonly small trees. Many of the Japanese maples with good autumn color are small trees that stay smaller than most shrubbery.

Sweetgum, Chinese pistache, flowering pear and maidenhair tree are the best trees for autumn color, though maidenhair tree turns only bright yellow without the oranges and reds that the others get. Where well exposed, Japanese persimmon is comparable to Chinese pistache. Fruiting pear, apple, apricot, plum, prune and almond trees are not quite as colorful.

Several of the North American and European maples are remarkably colorful, but do not hold their foliage as long as sweetgum does. Silver maple and box elder (maple) happen to be less colorful than the other maples. Various poplars and locusts, as well as tulip tree and black walnut can almost get as bright yellow as maidenhair tree does.

Aromatic Foliage Attracts And Repels

Scented geranium supposedly repels some insects.

After their invention in ancient Rome, window boxes became overly prevalent in Venice. They contained herbs and vegetables where space was limited within such urban areas. Their produce was close to kitchens, and more visually appealing than nearby buildings. Several window box herbs produced aromatic foliage for more than culinary application.

The popularity of window boxes preceded the availability of affordable window screens. Mosquitoes were a nuisance within the swampy ecosystems around Venice prior to that. Therefore, besides their obvious usages, window boxes also sustained aromatic foliage. Such foliage, which was mostly also culinary herbs, repelled some troublesome insects.

Just as flowers attract pollinators with fragrance, some foliage repels insects with aroma. Some aromatic foliage intends to repel other large consumers, such as rodents and deer. Any potential consumers know that flavor is likely as objectionable as associated aroma. Ironically, some flavors or aromas that are unappealing to them are appealing to people.

Culinary herbs are perfect examples. Their strongly flavorful and aromatic foliage is quite repellent to insects and wildlife. However, it is an asset both for culinary and horticultural application. Some such herbs have cultivars for either culinary or landscape application. Trailing rosemary is a groundcover that has slightly milder flavor than culinary rosemary.

Several cultivars of lavender are popular for home gardens even if not for home kitchens. Their aromatic foliage is as delightful as their foliar color and bloom. The foliar texture of fennel is as striking as its foliar aroma. Thyme is both an herb and an aromatic, although irregular, ground cover. Mint and oregano are a bit more casual, but likely more aromatic.

Some of the most popular aromatic foliage has no culinary application, though. Its aroma more than justifies its cultivation. Scented geraniums and sages are remarkably diverse. Although most are quite pretty, a few are simply very aromatic. Most aromatic foliage can not disperse its aroma like floral fragrances. It requires some sort of disturbance to do so. Warmth with humidity enhance typical foliar aroma.

What Is This?! III

Could it be lychee?

Prior to the identification of Hibbertia scandens last week, another mystery arrived. I probably should have mentioned it earlier, but as with the previous mystery, I thought that I would have identified it before I felt compelled to mention it here. Unlike the previous mystery though, I did not recognize it as something that I had encountered in the past.

Someone with whom I work, who is not so horticulturally oriented, brought it from one of the homes that he was working at. It had been left by a former tenant. Initially, I thought that it was merely a can of otherwise unused media in which a common bay laurel seed had germinated. However, it is not a bay laurel seedling. Also, contrary to how it appears in the picture, it is remarkably centered within the can, as if intentionally plugged there.

Initially, I thought that it resembled coffee, Coffea arabica. However, coffee exhibits opposite leaf arrangement, and these leaves are alternately arranged. Besides, viable unroasted coffee seed is not exactly common. Now, I sort of suspect that it could be lychee, Litchi chinensis. Although uncommon, seeded lychee fruit are not as rare as unroasted coffee. Although their leaves are so closely paired among mature specimens that they seem to be oppositely arranged, they are technically alternately arranged, and more obviously so among juvenile growth. If this is lychee, it will not produce identifying bloom for a few years.

Realistically, immediate identification of this seedling is unimportant. I could have put less effort into discarding it than I put into writing about it. Therefore, I will merely give it what it needs until it grows enough for identification. I will not mind discarding it if I identify it as something that is useless. Otherwise, I can find it a home.

Jungle Update

New foliage is already beginning to replace older foliage.

Strelitzia nicolai, giant bird of Paradise is growing! It is not much growth, but it is more than expected. The specimens were heeled in about a month ago to begin the slow process of recovery from division and relocation. Within the damp soil of their temporary situation, they should begin to develop rudimentary roots without actually dispersing them too remotely prior to another relocation to their more permanent landscape after the beginning of the rainy season of autumn. In other words, the roots should begin to grow, but not grow too much.

They can grow more when they get settled within their permanent situation. This is done in two separate processes because the specimens are easier to monitor and irrigate prior to rain within the confined space where they are heeled in. Besides, they would not be very appealing within their permanent landscapes until they begin to recover. Once they begin to recover, they should grow faster, so will not be too unappealing for too long, and even if they are, it will be through winter, when fewer people are here to notice.

Anyway, while they begin the process of recovery and development of rudimentary roots, foliar growth is expected to be minimal. It was expected to stagnate for at least a month or so, and then to slowly resume as the minimal foliage that was retained deteriorates. Like root growth, foliar growth should accelerate after final relocation.

Instead, foliar growth is already accelerating, perhaps as a response to removal of so much of the original foliage while foliage is necessary to sustain rudimentary root growth. Perhaps these specimens actually are as healthy and as vigorous as they seem to be. Although this fresh new foliar growth will be more vulnerable to frost through winter, it is nonetheless gratifyingly encouraging.

Six on Saturday: Welcome to the Jungle

Giant bird of Paradise, Strelitzia nicolai, is a grand perennial. It develops several trunks like those of palms, with lush leaves like those of bananas, and bold white flowers. Their bloom can be messy with its sticky and viscous nectar though. Brent and I refer to them as drooling seagulls. For this reason, these giant bird of Paradise needed to be removed. I was pleased to recycle them. They look pathetic now that most of their foliage has been pruned away to minimize evapotranspiration during their recovery. Most should begin to regenerate roots through summer, and then resume growth for next spring and summer.

1. Giant bird of Paradise does not look so impressive laying on the ground. This is one of two piles of well foliated trunks that must be processed and heeled in until next autumn.

2. ‘A Flock of Seagulls’ demonstrates how abundantly these mature specimens bloomed. They are not just any seagulls, but are dead drooling seagulls. I will glean them for seed.

3. Husks make the trunks seem to be bigger than they are. They are the bases of petioles of leaves that were pruned off over the years. Trunks are leaner and tidier without them.

4. Severed roots are unimportant. They merely indicate that a portion of a subterranean rhizome remains attached to the base of a trunk. Trunks are neater without their husks.

5. Adventitious roots grow from portions of rhizome that remain attached to the bases of the trunks, and from the bases of trunks near the rhizomes. These roots are now buried.

6. Lineup shows that there are about a dozen significant trunks, a dozen shorter trunks, and half a dozen pups. They are heeled in here to begin rooting with frequent irrigation. They will be relocated to their permanent landscape after the rain starts during autumn.

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/

Giant Bird Of Paradise Migration

A Flock Of Seagulls

Giant bird of Paradise is not actually from Paradise, and if it were, it would not be the Paradise in Butte County that burned five years ago. This particular species, Strelitzia nicolai, is from South Africa, Mozambique, Botswana and Zimbabwe. These particular specimens are from none of these places though. They came from Morgan Hill. Nor are they actually birds, although they seem to be migratory like so many species of birds that migrate about the southwestern portion of Africa, and apparently Morgan Hill, but not Paradise. Oh, this is getting confusing.

Giant bird of Paradise, which is unrelated to Big Bird of Sesame Street, is a grand perennial that can get twenty feet tall. It resembles the more common bird of Paradise, but with tall trunks that resemble those of small palm trees. Also unlike the common bird of Paradise, their appeal is more foliar than floral. In other words, their primary attribute is their lush foliage, rather than their bloom. Actually, their bloom can be undesirable within some situations.

In fact, that is why these particular specimens needed to be removed. Their bloom was drooling messy nectar onto the pavement below. In horticultural slang, they are known as ‘drooling seagulls’ because of this habit, and also because their bulky white flowers look like seagulls peeking from the lush foliage, and of course, drooling while they do so.

Morgan, the old F250 who coincidentally is named after Morgan Hill, and I brought these giant bird of Paradise here, where they await processing. They are supposed to be left out of the ground for about two weeks anyway, so that they will be less susceptible to rot when planted and irrigated. After their processing, they will get heeled in here so that I can monitor them more directly as they begin their recovery. The best of them will migrate again to their permanent landscape after the rainy season starts. I should get better pictures of them and their processing for Six on Saturday.

China Doll

Most big China doll trees were formerly docile houseplants.

It is hard to believe that the original variety of the familiar China doll, Radermachera sinica, that grows so slowly to reach an eight foot high ceiling as a houseplant, can actually grow into a substantial fifty foot tall tree with a three foot wide trunk, where protected from frost. Modern varieties with more billowy foliage take even longer to reach the ceiling, and do not go much higher. The finely textured and very glossy foliage is bipinnately compound, which means that each of the half to two foot long leaves are divided into smaller leaflets, which are also divided into even smaller leaflets that are about an inch or so long. Trusses of tubular white flowers that resemble big catalpa flowers are almost never seen among houseplants or modern varieties, but are quite showy on big old trees.