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Six on Saturday: Stormy Weather

Several days of stormy weather were predicted, and came with a flash flood warning and a tornado warning for Christmas, but it really was not that bad. No floods. No tornados.

1. Sandbags were readily available for those who might have needed them for the storms that were expected. The wind was strong, but the rain was not as torrential as predicted.

2. Hedera helix, English ivy and a rotten stump of Lithocarpus densiflorus, tanoak were among the vegetation debris that needed to be removed from roadways after the storms.

3. Pseudotsuga menziesii, Douglas fir contributed to the mess as well. This small bit did not reach the ground, though. Larger branches interrupted electrical service to the area.

4. Cyclamen persicum, florist’s cyclamen looks rather shabby after so much windy, cold and rainy weather without interruption. The weather should be a bit drier for next week.

5. Iris unguicularis, Algerian iris has been more resilient to the weather; and it has been blooming for a long time. This might be its third appearance here in my Six on Saturday.

6. Leucojum vernum, snowflake is what we know as snowdrop. Now that snowdrop is so commonly available online, there could eventually be some confusion with their names.

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 · 7 Comments

Major Cutback

After several years of posting daily to this blog, I must cut back drastically. My posts for Thursdays and Fridays had been recycled articles from my gardening column, going back for as many years as this blog has gone forward. So, since this blog began eight years ago in September of 2017, the posts for Thursdays and Fridays have gone back for eight years from 2017, which was 2009. (However, I believe that I posted articles for 2010 twice inadvertently.) These recycled articles will no longer continue to be posted here. Furthermore, the elaborations that I post for Wednesdays and the pictures that I post for Sundays will no longer continue to post regularly. I may post them occasionally, but more likely will not. I hope to continue to post for ‘Six on Saturday’, but I am not even certain about that. Ultimately, I will only commit to posting my gardening articles on Mondays and Tuesdays, since I write those articles for the gardening column anyway. Blogging has been fun, but it is also a time consuming commitment. I may enjoy it more when it is less of a burden, and without the sometimes redundant and sometimes outdated recycled articles.

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Mugo Pine

Mugo pine exhibits very compact growth.

Although it classifies as a tree, mugo pine, Pinus mugo, is more like shrubbery. Old trees may be only a few feet tall, and maybe twice as wide. Not many are more than eight feet tall. Their form is densely rounded. Foliage is deep forest green. Stiff paired needles are only about one to two inches long. Plump cones are not much longer, and are quite rare.

Mugo pine, although native to the Alps, is a traditional feature of Japanese gardens. Yet, it is rare within other types of gardens. It does not grow fast or big enough to be practical for much more than aesthetic appeal. It does excel at that, though, by developing such a distinctly rounded form. It can work well as foundation planting or a short informal hedge.

Mugo pine is not particularly discriminating about local soils or climates. It merely craves sunny and warm exposure. Mature specimens do not need much water, but are healthier with occasional irrigation. Mugo pine appreciates room for unrestricted growth. Shearing deprives it of its natural form and texture. If necessary, selective pruning may be tedious.

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Evergreen Foliage For Christmas Decor

Pines provide delightful cut evergreen foliage.

Berries such as firethorn might be the most colorful features of some home gardens now. Flowers can be scarce for late autumn and winter. Yet, people still enjoy decorating their homes with vegetation from their gardens. Cut evergreen foliage actually becomes more popular than cut flowers had been. It is a basic component of traditional Christmas decor.

Christmas trees are the most extreme form of cut evergreen foliage. With few exceptions, though, they do not grow within home gardens. Instead, they grow on farms and become available for sale before Christmas. Availability from such sources is remarkably diverse. Not many home gardens have adequate space for cut Christmas tree cultivation anyway.

Wreaths and garlands are the second most extreme forms of cut evergreen foliage. Many are available for sale like cut Christmas trees are. However, many people create wreaths and garlands from what inhabits their gardens. After all, wreaths and garlands are merely stylized floral design which lack containers. Most, but not all, lack anything floral as well.

Because wreaths and garlands lack containers, their components must not wilt too soon. The best evergreen foliage is coniferous. However, some broadleaf foliage works nicely. Even defoliated deciduous twigs can be intriguing. Pine cones can substitute for flowers. There are not many rules to floral design, or for the composition of wreaths and garlands.

Collection of evergreen foliage for wreaths and garlands should not disrupt a landscape. Ideally, such foliage should be in need of removal anyway. For example, stems that need pruning can provide significant material. Pruning cuts from source material must be done properly, without stubs or disfigurement. The many rules of responsible gardening apply.

Fir, spruce, pine and cedar are some of the better evergreen foliage for Christmas decor. They are uncommon, though, within local home gardens. Italian cypress, arborvitae and juniper are more common. Boxwood, various hollies and various pittosporums are some broadleaf alternatives. Southern magnolia and New Zealand flax may add bold contrast. So do coral bark Japanese maple twigs or tufts of ornamental grass.

Posted on by tonytomeo · 6 Comments

Six on Saturday: More Unseasonal Azaleas

Half of these blooms are right on time. The other half are azaleas that really should wait until spring to bloom. I hope that some refrain from blooming now to bloom in season.

1. Osmanthus fragrans, sweet osmanthus may not be much to look at, but is exquisitely fragrant. I believe that the current cool and humid weather enhances its floral fragrance.

2. Viburnum tinus, laurustinus, which is not typically very fragrant, likewise seems to be more fragrant with cool and humid weather. This one blooms white without pink blush.

3. Osteospermum ecklonis, African daisy blooms significantly less while weather is cool, but seems to never be completely without bloom. This one blooms with a billowy center.

4. Rhododendron spp., azalea should not be blooming now. Flowers that bloom now will be finished and unavailable to bloom in spring. I believe that this cultivar is ‘Coral Bells’.

5. Rhododendron spp., azalea, which is likely ‘Fielder’s White’, is blooming prematurely also. If I remember correctly, it typically does this, but somehow blooms for spring also.

6. Rhododendron spp., azalea with double bloom is probably a recycled florist specimen. I have no idea what cultivar it is. It certainly is colorful. I hope it saves bloom for spring.

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/

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Norfolk Island Pine

Norfolk Island pine seems to have been built rather than grown.

            In coastal areas of Southern California, the Norfolk Island pines, Araucaria heterophylla, are among the most distinctive large trees. Perhaps they are better described as ‘unusual’ . . . , or even ‘strange’. They are so symmetrical that they seem to have been assembled from prefabricated kits than to have grown as natural trees. Their strictly organized conical branch structures and remarkably straight central trunks are always visible through their uniformly open canopies. In such mild climates, they can get nearly a hundred feet tall and half as wide, so are not easy to hide. In Hawaii, their symmetry has actually made them popular as Christmas trees. Their finely textured juvenile foliage is comprised of narrow, half inch long pine-needle like leaves, which are wider among adult growth.

            Locally though, Norfolk Island pines are primarily enjoyed as houseplants, particularly since they can grow slowly and live in pots for many years. The climate is just a bit too cool in winter for them to be very happy in the garden. However, as they eventually get too large for their homes, many end up in the garden anyway. They stay much smaller and are not nearly as symmetrical as they are in milder climates, and may be damaged by the more severe frosts every few years, but they have a certain appeal and distinction regardless. Those that get planted in the garden while young seem to be more symmetrical than those that get disfigured by living as houseplants longer. For some reason, trees that develop weak or curved trunks as houseplants tend to continue to grow with interestingly irregular trunks and branch structure.

Posted on by tonytomeo · 3 Comments

Frost Protection

For many species, frost damage is not as bad as it looks.

            My colleague in the Los Angeles area still sends me seeds for all sorts of strange plants that I probably should not be growing in my less climactically temperate garden, making it difficult to conform to the primary rule of frost protection: ‘Select plants that are appropriate to the particular climate.’ No matter how often I remind my clients of this rule, I really do not want to abide by it. There are just too many interesting but inappropriate plants.

            So the next option is to grow frost sensitive plants in containers that can be moved to sheltered areas prior to frost. That worked while I had an extra parking space in the carport and some room under the porch for giant bird-of-Paradise, plumeria, philodendrons and such. Eventually though, some of these plants get too large to be contained; and I really do not want to keep pruning them back. Besides, I prefer to grow things in the ground.

            The third option is to put sensitive plants in spots that are naturally warmer, or where they are sheltered below the canopies of large evergreen trees, lath or wide eaves. Just remember that plants under eaves are also sheltered from rain, so may need to be watered occasionally through winter. Steep slopes are not quite as cold because cold air drains off. However, flat areas below slopes get colder as they catch cold air that drains from uphill. South facing exposures are of course warmer than northern exposures.

            I know probably better than most that there are always some plants that are not ‘appropriate to the particular climate’, that I do not want to grow in pots, and that prefer to be out in exposed parts of the garden. For example, bougainvilleas are somewhat tender, have sensitive roots that do not like to be confined, and really want to be out in the open to take advantage of warming sunshine during summer. Such plants in colder areas will either need to be protected, or will get damaged by frost.

            Burlap suspended above the foliage by stakes is typically enough to protect sensitive plants from frost. I have used old towels and linens where my neighbors can not see. Plastic sheeting is also effective, but should be removed before sunlight warms the air too much underneath. Paper grocery bags or cardboard boxes are enough for small plants.

            I actually allow some of my larger plants that would be difficult to cover to get damaged by frost, and then prune out the damage later. If they are too big to cover easily, they are probably big enough to survive frost. Damaged stems should be left until the end of winter both to insulate stems below, and also because early pruning stimulates new growth that is even more sensitive to frost. 

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Pollinator

A pollinator is a vector of pollen, besides wind. Most are insects. Some are animals. Their only qualification is that they collect and deliver pollen between flowers. Almost all are unaware that they do it as they visit flowers for nectar, which the flowers produce to attract pollinators. Bees, which are probably the most common pollinators, visit flowers to collect pollen with which to make their honey, and pollinate in the process.

So, what about the flowers that provide pollen for pollination, particularly for dioecious species such as hollies, date palms and kiwi vines? (Dioecious plants are either male or female.) ‘Bing’ cherry is not dioecious, but is not self pollinating either, so needs another cultivar of sweet cherry for cross pollination. Such a cultivar is known as a pollinator.

My female kiwi vine just recently acquired a male pollinator. It does not look like much yet, but will grow up to bloom with male flowers to provide pollen for the female flowers of the vemale vine. Because kiwi vines are dioecious, the female vine would be fruitless without pollination from the male vine. Perhaps the male pollinator will need a pollinator to deliver its pollen to the female vine.

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Atlas Mountain Palm

Atlas Mountain palm resists frost damage.

Mediterranean fan palm is a shrubby palm, with a few small trunks. Atlas Mountain palm, Chamaerops humilis var. argentea, is an even shrubbier variety. Mediterranean fan palm can grow slowly to about twenty feet tall. Atlas Mountain palm grows even slower to only about eight feet tall. Its several trunks become strikingly sculptural only after many years.

The primary allure of Atlas Mountain palm, though, is its distinctly silvery gray foliar color. Individual fan shaped leaves may be nearly two feet broad, with deep and narrow clefts. Petioles are so nastily thorny that grooming and pruning can be painfully difficult. Mature trunks can be six inches wide with dense coats of petiole bases. Bloom is not prominent.

Atlas Mountain palm is notably undemanding. Once established, it does not crave much water or fertilizer. Nor is it finicky in regard to soil quality. It is resilient to both extremes of heat and cold. After several years, it might benefit from thinning of superfluous trunks and pups. Like many palms, Atlas Mountain palm should perform well within big pots or tubs.