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Bare Root Begins As Christmas Ends

Bare root stock is exactly what it sounds like.

Now that nurseries and garden centers are no longer selling Christmas trees, they have plenty of room for bare root stock. All sorts of deciduous fruit trees, a few deciduous shade trees, shrubs and vines, and even a few perennials can now be purchased while dormant and without the cumbersome media (soil) that the roots need at all other times of the year. Not only is bare root stock easier to handle and transport in small cars, but it is also much less expensive than canned stock (that has roots contained in media, which is contained in nursery cans). Bare root stock typically costs about a third of what canned stock costs.

Bare root stock also has the advantage of adapting to new garden easier, since it does not need to leave the comfort zone of the media that it would have grown into (within a can) in order to venture out into unfamiliar soil. Instead, it starts to disperse roots into the new home soil immediately as it emerges from dormancy in late winter. Without cans, bare root stock can not get root bound. Instead of developing branch structure that is appealing to nursery marketing, bare root stock can get an early start on developing branch structure that is most practical and efficient for the gardens that it gets installed into.

It seems that all of the ´stone’ fruit can be found as bare root stock. These include apricot, cherry, plum, prune, peach, nectarine, almond (which is the seed, or ´stone’, of a peach like fruit) and the odd hybrids of these. The pomme fruits, apple, pear and quince, are perhaps the second most popular of bare root stock, although quince is still rather rare. Ornamental trees, shrubs and vines include flowering crabapple, flowering cherry, flowering quince, alder, poplar, willow, lilac, forsythia, wisteria and clematis. Perennials include rhubarb and artichoke.

Bare root stock can be purchased as soon as it becomes available, but does not do much until it starts to grow in spring. It should get planted quickly and soaked in, but will get more water than it needs from rain afterward. It should not need water again until after it blooms or gets new leaves in late winter or early spring. Despite guarantees of fruit in the first year, none should be expected. The few fruit trees that might set fruit will probably produce only useless underdeveloped fruit because new plants are busy producing new roots and growing. Actually though, this apples to canned stock as well, except only for citrus, olives and other evergreen fruit trees.

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Winter Bloom Might Be Limited (deferred from yesterday)

Some camellia varieties bloom for winter.

Except for flowers that bloom randomly throughout the year, most autumn bloom is done. Much of the formerly spectacular autumn foliar color succumbed to wintry rain and wind. Many colorful winter berries have already gone with migratory birds who consume them. Overwintering birds appreciate what lingers. Fortunately, some winter bloom continues.

Cool season annuals likely provide most winter flowers prior to spring. Ornamental kale generates a foliar display like a pastel version of summer coleus. Snowdrop bulbs bloom only white, but look sharp if other bloom is scarce. A few species contribute winter bloom merely because they lack regard for seasons. African daisy blooms whenever it wants to.

However, winter bloom is not comparable to spring bloom. That is an unfortunate reality. Most species that bloom randomly throughout the year bloom best for spring or summer. Most species that bloom specifically during winter are relatively subdued about doing so. Although pollinators are less active, competition for their pollination services is minimal.

Witch hazel is becoming more popular locally for its fragrant winter bloom on bare stems. Modern cultivars bloom with earthy tones of yellow, orange, red, and burgundy red. They prefer cool wintry weather though. Bloom may be inhibited somewhat within mild coastal climates. Winter jasmine bloom, although limited to only brilliant yellow, is more reliable.

Some species of Mahonia likewise bloom reliably but exclusively bright yellow. They are evergreen instead of deciduous. So is andromeda. Its pendulous ivory white or pale pink blooms are more striking in form than color. Daphne, which likely finished bloom already, is more striking in fragrance than color. Its light pink bloom is mostly obscured by foliage.

Camellias are among the most reliably colorful of winter bloom. Their floral color ranges through all hues between white and red. Floral form and abundance are notably diverse. Some bloom rather sparsely. Various cultivars bloom at various times throughout winter. Sasanqua camellias generally bloom earlier, with relatively smaller but profuse flowers. Camellias unfortunately lack fragrance.

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Living Christmas Trees Eventually Grow Up

Although relatively compact, even spruce trees eventually grow up.

One of the problems with driving my favorite vehicles that were old long before I learned to drive them is that I spend considerable time waiting for a bus or walking. The cool thing about that is that I get to seem so much scenery that I would otherwise drive past. While waiting nearly an hour for a bus at the Cavallero Bus Terminal in Scott’s Valley, I went across the street to see the landscape of the somewhat new Post Office, which has actually been there for many years now.

The landscape is a bit sparse in front (I think because of architectural modifications after the landscape was designed), so was outfitted with recycled live Christmas trees. Although none of these particular trees seem happy in the local climate or sandy soil, I had wanted to get better acquainted with them for some time. They are an odd assortment of spruce and fir that are rare here.

The more typical concern with the more common live Christmas trees is not that they are not well suited to local climates and soils, but that they actually do too well and grow much larger than expected. Except for the small rosemary, holly and English ivy ‘trees’, most coniferous evergreen live Christmas trees are young pines that get remarkably large; and some waste no time doing it! The most common live Christmas trees are Italian stone pines, which happen to be the two very large and broad trees in Blaney Plaza in downtown Saratoga!

Canary Island pines, which had been more common than they are now, do not get quite as broad, but do get very tall and messy. Years ago, Aleppo, Eldarica and Monterey pines all took their turns being popular live Christmas trees. Each of them grows large enough to require significant garden space.

This is of course not a problem for the few live Christmas trees that happen to get planted where they have plenty of space. However, those that get planted where they do not have room to grow can cause serious problems. Because they seem so cute and innocent while they are young, and are so often expected to stay cute and innocent, many often get planted dangerously close to houses, where they can displace porches, walkways and even foundations! Large pines, particularly Italian stone pines, are also too messy and potentially combustible (if not pruned and groomed regularly) to be too close to houses.

Sadly, large pines do not like to stay in containers too long. They can be pruned for a few years, but eventually get congested roots. (Bonsai techniques of root pruning can maintain even the largest types of pines in containers indefinitely, but not many of us know these techniques.) Small pines, like Austrian black, Japanese black and Scott’s pine (which has no relation to Scott’s Valley), as well as other small coniferous evergreens, like certain junipers, can stay in containers much longer, but these are the sort that are small enough to get planted in the garden, so do not necessarily need to stay in containers anyway.

If space is not sufficient, pines and other live Christmas trees that eventually get too large really should be given to friends and neighbors who have space to accommodate them. Fortunately, most do not require much attention once they get established after two years or so.

Posted on by tonytomeo · 2 Comments

Cut Foliage For Christmas Decor

Coniferous evergreens are popular Christmas decor.

Christmas trees are extreme cut foliage. They grow on farms like cut foliage that florists use, but are entire trees! Although most fit under household ceilings, some within public venues are famously grand. Nonetheless, they are ultimately as disposable as any other cut foliage. Eventually, after their Christmas season, they become common greenwaste.

Other cut foliage is also popular as home decor through the Christmas season. Much of it is from the same sorts of coniferous trees that become Christmas trees. Almost all of it is evergreen, since deciduous vegetation is already defoliating. A few deciduous stems with colorful bark, such as red twig dogwood, are nice too. So are colorful winter berries.

Cut foliage is more practical as wintry decor within climates with cooler winter weather. Not much blooms during such weather. However, because of this same wintry weather, people prefer to be inside. While inside, they appreciate the color, texture, and perhaps aroma of cut foliage. Locally, such foliar decor for winter is more traditional than practical.

Actually, the most traditional cut foliage of Christmas is uncommon within local gardens. Scraps from the lowest branches of Christmas trees are a good source of minor bits of it. Premade wreaths and garland include a few types that are otherwise unobtainable here. Improvisation is necessary to create wreaths and garlands from locally available foliage.

Only a few of the few blue spruce that live here grow large enough to share many stems. Their best foliar growth is also their most important structural growth. Removal of it might cause minor disfigurement. Other spruce, as well as various fir, are very rare within home gardens. So is Eastern white pine, although a few other pines are notably common here.

Atlas cedar, Deodar cedar, various cypress and various juniper are also rather common. A few sorts of holly are uncommon but not rare, but they produce only a few berries here. Holly olive may be more common, and resembles English holly, but produces no berries. Southern magnolia is a strikingly untraditional cut foliage, but becomes fragile as it dries.

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Wintry Weather Can Damage Trees

(This posted in 2011.)

Wind brings out the worst in trees.

Pasadena sustained the worst of the damage caused by the strongest Santa Ana Winds in three decades. Huge piles of debris from broken trees are much more than can be removed any time soon. Falling debris and trees damaged many roofs, cars and anything else that happened to get in the way.

Other towns and neighborhoods throughout the area, particularly those at the base of mountains, also sustained major damage. At the same time, severe winds ravaged the San Francisco and Monterey Bay Areas as well, particularly in the Santa Cruz Mountains and the hills of the East Bay.

Some of the damage caused by wind in urban areas might have been less disastrous if trees had gotten the respect and attention that they deserve. Some trees develop structural deficiencies that need to be corrected by pruning, either to eliminate the problems, or at least to decrease the strain exerted onto the structurally deficient parts. A few trees that become unstable as they mature may likewise need to be pruned or even removed.

It is not always possible to prune trees to remove all structural deficiencies without damaging the affected trees more, or causing more structural problems to develop. For example, major pruning to remove all parts that may get blown down by wind, such as pollarding or ‘topping’, may seem to be effective for the short term, but actually stimulates the development of vigorous secondary growth or watersprouts that are disproportionately heavy and even more likely to tear off from the older limbs.

Structural pruning more often involves thorough reduction of weight and wind resistance. Weight of foliage and stems directly applies leverage against unions where smaller stems are attached to the larger stems from which they originate. Wind resistance adds more leverage as foliage gets blown about by wind. Thinning obviously removes significant weight, and also decreases wind resistance to allow wind to blow though the affected canopies.

Besides helping to compensate for structural deficiency, structural pruning is also beneficial to potentially unstable trees for the same reasons. However, unstable trees typically need even more reduction of weight and wind resistance. Some of the most unstable trees and those that are deteriorating need to be removed because their instability cannot be accommodated.

During winter, while deciduous trees are bare, evergreen trees are more susceptible to wind damage, obviously because they retain their weight and wind resistance through winter while the weather is the most severe. Unstable trees become even more destabilized as rain softens the soil. Regardless of the potential for susceptibility to wind damage, this would be a good time of year to get any needed tree maintenance done, prior to any more windy and rainy winter weather.

Arborists certified by the International Society of Arboriculture are the most qualified to identify potential structural problems or instability, and to prescribe corrective procedures. A list of certified arborists can be found at the website of the International Society of Arboriculture at http://www.isaarbor.com.

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Frost Is Simply Too Chill

Some minor frost damage is acceptable.

Chill can be good. Frost can be bad. The difference is thirteen degrees Fahrenheit. Chill is at or less than forty-five degrees. Frost is at or less than thirty-two degrees. Chill helps some flora to maintain its seasonal schedule. Frost causes some flora to freeze. Both are limiting factors of home gardening. Both are weather patterns that are limited by climate.

Many species from climates with more pronounced seasons rely on chill. They know that it occurs only during winter, and that they should bloom afterwards. Duration of such chill is more important than temperature. Any temperature at or less than forty-five degrees is equally sufficient. Within that, different species require different durations, or ‘chill hours’.

This limits the selection of many species, like various fruit trees. Citrus orchards formerly grew within the San Fernando Valley. They require no chill. Stone fruit orchards formerly grew within the Santa Clara Valley. They require a bit of chill. Pomme fruit orchards grow in the Willamette Valley. Many cultivars of pomme fruit perform best with significant chill.

Frost also limits the selection of many species. Pomme fruits do not mind it. However, if it happens late, it can ruin stone fruit bloom or developing fruit. It might damage citrus trees whenever it happens. Some climates here experience frost annually. Some experience it only rarely or mildly. Several coastal climates experience merely minor chill without frost.

Many garden enthusiasts grow a few species that are vulnerable to frost. Of course, such species are safe within frostless climates. Elsewhere, they may need shelter during cold weather. Potted vegetation may benefit from seasonal relocation. Temporary tenting can shelter imobile vegetation in the ground. Some vegetation is too large to shelter, though.

Vegetation that sustains frost damage is unsightly. However, it is best to delay pruning or grooming until subsequent frost is unlikely. Damaged outer growth insulates undamaged inner growth. Besides, pruning stimulates new and more vulnerable growth. Some types of vegetation should want only superficial grooming. Others might require major pruning.

Posted on by tonytomeo · 4 Comments

Christmas Trees Grow On Farms (2011)

Christmas trees grow on farms rather than forests, but some farms are in forests.

(This is an old article from 2011, so much of the information within is no longer relevant.)

Douglas, grand, white and Noble firs, as well as sierra redwoods, Monterey pines and at least fourteen other varieties of Christmas trees can be found and cut at Santa’s Tree Farm and Village near Half Moon Bay. Certainly, no one needs that many Christmas trees; and most select only one. Yet it is good to know that somewhere within such a vast selection, there is the perfect Christmas tree. Santa’s Tree Farm and Village also provides wreathes, garlands, tree stands, flocking, fire retardant and delivery.

On weekends, Sleighbells Gift Shop is open from 9:00 a.m. to 4:00 p.m.; and through December 18, Santa Visits between 9:30 a.m. and 4:30 pm.. For $2, children from two to ninety-two and older can ride the train from 9:30 a.m. to 4:00 p.m., as weather allows. Younger children ride for free. Santa’s Tree Farm is open between 8:00 a.m. and 5:00 p.m. on weekends (except for closing at 1:00 p.m. on Christmas Eve), and from 9:00 a.m. to 5:00 p.m. on weekdays.

Except for trees on the Diamond lot and pre-cut trees, prices range from $46 to $69. VISA and Mastercard and leashed dogs are welcome. Santa’s Tree Farm and Village is at 78 Pilarcitos Creek Road at Highway 92, six and a half miles from Highway 280 on the way to Half Moon Bay. Coupons, showtimes (yes, ‘showtimes’) and more information can be found at the website http://www.santastreefarm.com, or by telephoning 650 – 726 2246.

Atlantic cedar, Austrian pine, Arizona cypress, Leyland cypress Scott’s pine, sugar pine, white fir, as well as many other varieties of Christmas trees can also be obtained from Crest Ranch Christmas Tree Farm, located in the Santa Cruz Mountains west of the San Lorenzo Valley. Douglas firs, pines, cedars and cypress are $37 up to five feet tall, and $7.40 for each additional foot. White and Greek fir varieties are $42 up to five feet tall, and $8.40 for each additional foot. All sales are cash or check. An ATM is available.

The beautifully scenic picnic area is a good excuse to bring lunch, or at least get something at the snack bar. Leashed dogs are welcome. More information can be found at the website http://www.crestranch.com or by telephoning 831 – 426 1522. Crest Ranch Christmas Tree Farm is open from 8:00 a.m. to 5:00 p.m. until December 20, and is located at 12200 Empire Grade outside of Felton.

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Berries Get Colorful For Winter

Firethorn berries are very reliably abundant.

Some vegetation excels at exploitation of wildlife. All sorts of flowers use color and floral form to attract pollinators. Many flowers rely on fragrance or flavorful nectar for this same purpose. Many flowers employ a combination of such techniques. After pollination, many species produce fruit to draw wildlife to disperse their seed. This includes winter berries.

Just as flowers appeal to particular pollinators, fruits appeal to particular consumers. Big fruits appeal to animals who eat them, perhaps sloppily, but drop the seed within. Acorns and nuts appeal to squirrels who bury more than they can retrieve. Winter berries appeal to birds who do not digest the seed within. The birds deposit the seed wherever they go.

It is a mutually beneficial arrangement. Birds, whether migratory or overwintering, eat as many berries as they want. Vegetation that provides winter berries benefits from efficient dispersal of its seed. Naturally, such fruits ripen as birds are fattening up for winter. They are brightly colorful to attract hungry birds. They are small enough for birds to eat whole.

This is convenient for home gardening. It provides some color after defoliation of autumn foliar color, and prior to spring bloom. It is actually more appealing where cooler weather accelerates defoliation. Also, such color contrasts more prominently against snow within a stark landscape. Within any climate though, such berries last only until birds find them.

For some, birds and squirrels who come for winter berries are welcome. Some prefer the color of winter berries. Ultimately though, the wildlife determines how long winter berries linger. Anyone can cultivate vegetation that produces winter berries. Very few can protect such fruit from wildlife that craves it. Berries rarely last long enough to rot through winter.

Firethorn produces the most colorful winter berries. Various cotoneasters are similar, but with somewhat subdued rusty red color. Toyon develops larger but looser clusters of fruit. English hawthorn fruit resembles that of cotoneaster, but on bare stems. Hollies produce only a few berries. They are dioecious, so need male pollinators which are rarely nearby.

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Deciduous Foliage Is Efficient

Maple foliage only seems to be messy because it all falls at once.

(Horridculture will resume on Friday.)

Contrary to popular belief, most deciduous trees, those that drop all their leaves in autumn, are not as messy as most evergreen trees. There are of course a few exception; such as cacti that lack foliage completely, or Italian cypress that drop their finely textured foliage straight down within a very narrow drip-zone, where it decomposes and disappears unnoticed. Very few leaves fall from a big silver maple through winter, spring and summer, so that almost all of the raking is done when almost all the leaves get shed in autumn. However, a big Southern magnolia generally drops leaves throughout the year, so that raking is always necessary.

The problem is that when deciduous trees get to be messy, they are very messy. Also, they get to be messy at the worst time of year, when their leaves mix with rain to clog drains and gutters. Unraked leaves become hazardously slippery when they get wet and start to decompose. It is amazing how something that can be so appealingly colorful through autumn can so quickly become such a nuisance.

Leaves of deciduous trees somehow seem to be better for composting than those of some of the evergreen trees. Anyone with a Southern magnolia knows how slow the foliage is to decompose. Foliage of camphor, bay, carob and various eucalyptus certainly decompose slower than various maple, ash, poplar and birch. Many of us outfitted with green waste bins or curbside collection of green waste prefer to recycle the less desirable evergreen foliage, and compost primarily deciduous foliage. Those of us who do not compost but need to rake under large or many deciduous trees may fill bins for several weeks, or leave very big piles of leaves at the curb.

Small leaves, such as those of most elms, or finely textured compound leaves, such as those of silk tree, jacaranda or locust, may not need to be raked if they fall onto lower shrubbery or ground cover. Small leaves or the small leaflets of disintegrating compound leaves simply sift through the lower plant material to decompose below. However, large elms may produce such an abundance of foliage that some may need to be removed. Maple and other large leaves are not so easy to ignore. They can shade lawns, ground cover or bedding plants, so need to be raked as they fall.

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Dormancy Facilitates Survival Through WInter

Deciduous vegetation defoliates for winter dormancy.

Dormancy is not exclusive to vegetation. Many animals are dormant while they hibernate through cold winter weather. Some animals are dormant while they aestivate through hot and dry weather. Fungi and bacteria can maintain dormancy for many years or centuries. Dormancy is a technique for avoiding unpleasant situations, such as cold or hot weather.

Like some animals, fungi and bacteria, some vegetation is dormant through dry weather. This is evident within local chaparral climates and nearby desert climates. Even within a few coastal forests, buckeye defoliates during summer. Such vegetation resumes activity in response to late autumn rain. However, most vegetation here prefers winter dormancy.

Such winter dormancy is especially evident among deciduous species. Many evergreen species merely halt or decelerate their growth, but without defoliation. Several evergreen species defoliate only partially. A few only shed their old foliage as new foliage replaces it during the following spring. Few species prefer to grow most vigorously through winter.

There are a few advantages to defoliation for winter. Wintry wind blows much more freely through defoliated canopies. Evergreen canopies are therefore more vulnerable to wind. In other harsher climates, defoliated canopies do not accumulate much snow. Evergreen canopies might accumulate more snow than they can support. Some get heavy with rain.

Foliage is not as useful through winter as it is through summer anyway. The sun is lower to the south. Consequently, less sunlight gets through more of the atmosphere. Days are shorter while nights are longer. Furthermore, cooling autumn and winter weather inhibits photosynthesis. For deciduous species, foliage becomes less of an asset than a liability.

Dormancy, whether it involves defoliation or not, facilitates a few horticultural techniques. Bare root stock becomes available at the beginning of winter. Transition from its farms to home gardens is much less stressful during dormancy. So is the aggressive pruning that roses and deciduous fruit trees require. Most pollarding is safest during winter dormancy.