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Forcing Bloom From Bare Stems

Forsythia is ideal for forcing bloom.

Spring bulbs, with prechilling, were conducive to the technique of forcing bloom earlier. A few summer bulbs might still be responsive to it, although it is getting late for most. Now, it is about time for forcing bloom with certain dormant deciduous stems. Most are already beginning to bloom. Forcing bloom merely accelerates this process for cut flower stems.

Forcing bloom for dormant deciduous stems is actually simpler than for bulbs. It involves merely cutting stems that are about to bloom and bringing them indoors. The warmth of a home interior is what accelerates profuse bloom. Aridity of home interiors may accelerate the deterioration of this bloom. However, homes also provide shelter from wind and rain.

Witch hazel, flowering quince and forsythia are mostly done blooming locally. Otherwise, they are conducive to forcing bloom, and will be available next winter. Several flowering cherries and flowering plums are now about ready for forcing bloom. Redbuds are ready also, though some will be later. Flowering crabapples should bloom later in their season.

Several fruit trees are as conducive to forcing bloom as their fruitless flowering relatives. Their floral color and profusion are less extravagant only because of their breeding. Fruit is, after all, the priority. With planning, dormant pruning can involve leaving a few surplus stems to cut later. Then, cutting them about now should not compromise fruit production.

With precise timing, wisteria and lilac are conducive to forcing bloom. Technically, so are dogwood and several deciduous magnolias. They bloom relatively slowly though. A few flowers should therefore be blooming before collection of their stems. Evergreen species are less striking in bloom. Fringe flower and Oregon grape can perform elegantly though.

Forcing bloom is more popular where winters are cooler. This is partly because gardens lack floral color for so long through winter. Those who enjoy flowers are in more of a rush to bring some into their homes. Also, dormant vegetation is more reactive to warmth after colder winters. Warmth might not stimulate bloom as effectively after locally mild winters.

Posted on by tonytomeo · 13 Comments

Six on Saturday: NIMBY

Flowers in the gardens of others remind me that I should be more adventurous in regard to trying new things. These six are not completely unfamiliar, but happen to be different from the cultivars that inhabit our landscapes. All are Not In My Back Yard.

1. Salvia chamaedryoides ‘Marine Blue’ sage, like other species here that are more often grown as common annuals, has performed reliably as a perennial for at least a few years. Like other sages, it is very popular with hummingbirds. It stays small, but gets attention.

2. Leptospermum scoparium ‘Ruby Glow’ New Zealand tea tree is deprived of its natural form by frequent shearing, but somehow manages to bloom with a few sporadic flowers. Bees are grateful. Its tiny leaves are very dark green, but perhaps technically not bronze.

3. Rosmarinus officinalis ‘Tuscan Blue’ rosemary is shrubbier with more upright growth than the sprawling ground cover cultivars that I am more familiar with. I still remember this cultivar as ‘Tucson Blue’ because that is how we said it in school prior to about 1990.

4. Primula X elatior ‘Pacific Hybrids’ English primrose can bloom yellow, white, purple, lavender, blue, maroon, red, orange, or, like this specimen, pink; all with yellow centers. They look like the flowers that Mickey Mouse picked for Minnie Mouse, from her porch.

5. Anemone coronaria ‘Mr. Fokker’ windflower has been impressively perennial here for a few years, like the ‘Marine Blue’ sage. Although it technically should be this perennial, it rarely is here. It might prefer cooler winter weather than it typically experiences here.

6. Osteospermum ecklonis ‘Flower Power Compact Purple’ African daisy is notably more compact than its extensive name is. Its purple floral color seems to be more purple than any within the landscapes at work. Perhaps I should grow a copy, but without that snail.

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 · 5 Comments

Not Steel Magnolias

Aspidistra elatior, cast iron plant, is a foliar perennial. In other words, it is grown more for its lush and famously resilient evergreen foliage than for its bloom. The resiliency of its foliage accounts for its common name. Its bloom does not account for much. In fact, it is rarely seen. This is not because it is rare, but because it is not much to see. Such bloom is typically obscured by the lush evergreen foliage. Even if exposed, as in these pictures, it is not prominent. Individual flowers are tiny and dark, and do not extend much above grade. They seem to be designed for pollination by ants or other insects that might walk over them on the ground. In the picture above, one flower is blooming to the far left, another is beginning to bloom to the far right, and a third floral bud seems to be developing below that which is is beginning to bloom to the far right. Even the closeup of the far left bloom below is more weird than visually appealing. The floral form, texture and color suggest that they are intended to attract flies. I did not notice if the floral fragrance was consistent with that assumption, nor do I want to. I know what sort of fragrances flowers disperse to attract flies. However, I suspect that if such floral fragrance were notably objectionable, cast iron plant would be known for sometimes producing it, or not be quite as popular as it is.

Posted on by tonytomeo · 17 Comments

Six on Saturday: Color of Profusion

Tulip is the only single flower of these Six this Saturday. The other five are dinky flowers that are colorful in their natural profusion. Even tulip is more colorful with at least a few friends, as it bloomed in its landscape. Flowering quince shows only three flowers in this closeup picture, but it actually blooms more comparably to forsythia or spirea.

1. Tulipa X hybrida, tulip is of an assorted batch, but seems to be the same color as all of the others. Such batches typically contain a preponderance of varieties that happen to be overly abundant when they are mixed, but are not likely to be completely homogeneous.

2. Spirea prunifolia, bridal wreath spirea could have bloomed more fluffily if it had been in a sunnier situation. This specimen has been in partial shade in the storage nursery for too long as it waits for reassignment to a real landscape. I remember it only as it blooms.

3. Ceanothus thyrsiflorus, California lilac is the same that I posted a picture of here two weeks ago, but neglected to remember until now. It is the only of these six that is native. It could have been installed intentionally into its landscape, but it more likely grew wild.

4. Chaenomeles speciosa ‘Orange Storm’ or ‘Double Take Orange’ flowering quince has a pair of cultivar names, which is two more than I can identify for the other five of my six. I can not determine if one is more correct than the other. It is pretty, but a bit overrated.

5. Forsythia X intermedia, forsythia was with the bridal wreath spirea and ‘Double Take Orange’ flowering quince in the storage nursery for a long time before assignment to the landscape that it now inhabits only last winter. It has not grown much, but blooms well.

6. Loropetalum chinense, Chinese fringe flower is pretty enough to be an illustration for the gardening column. I may feature it next week or the week after. If I do so, it must be within its bloom season. When it became a fad several years ago, I was not so keen on it.

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 · 19 Comments

Six on Saturday: Bluem

Blue is the rarest floral color. Furthermore, many flowers that appear blue are somewhat purplish, or perhaps more purple than blue. These six all look blue to me, although I can not see blue very well.

1. Iris unguicularis, Algerian iris has been blooming long enough for a third appearance here in four months. That may seem to be redundant, but it is my favorite for this week. I still do not know when to expect its last blooms. It is from Tangley Cottage Gardening.

2. Viola cornuta, viola exhibits more insect damage than I was aware of when I took this picture. Well, this is embarrassing. I do not select annuals at work, but I do enjoy taking credit for them. These bloom longer here than they would within the Santa Clara Valley.

3. Viola X wittrockiana, pansy also performs better here than in the Santa Clara Valley. These blue pansies alternate with white pansies, which I prefer; but I took this picture to conform to the blue theme. We have not yet found any color that is not appropriate here.

4. Hyacinthus orientalis, hyacinth blooms thinly on floppy stems in partial shade, but is impressively reliably perennial. We should probably move the bulbs while dormant, but would prefer to instead remove an unwanted bay laurel tree that shades their landscape.

5. Ceanothus thyrsiflorus, California lilac is both locally native and added to at least one of our landscapes. Unfortunately, it is not easy to accommodate. It grew too large for its particular applications, but is difficult to prune properly without removing its best parts.

6. Myosotis sylvatica, forget-me-not is naturalized here, but not too aggressively so. It is pretty near but not within cultivated landscapes, where it can benefit from supplemental irrigation without incurring damage from weeding, raking and other gardening activity.

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 · 15 Comments

Six on Saturday: Late Winter Color

Color is relatively scarce as spring bloom is only slowly beginning. A bit of winter bloom remains. Not all flowers bloom earlier here than in other regions. Some could actually be a bit later than expected.

1. Lemna minor, duckweed does not grow much during cool winter weather, but lingers until sloshed by rain. After surviving through a dry January, it finally succumbed to rain during early February. Its monochromatic green revealed this more vibrant color below.

2. Viburnum tinus, laurustinus is not among my favorites. I seriously do not understand why it is as popular as it is. Nonetheless, several feral specimens inhabit some of the less refined landscapes. I do appreciate how the white bloom of this specimen is not blushed.

3. Arctostaphylos X densiflora ‘Howard McMinn’ manzanita qualifies as a locally native species, but is actually an unnatural hybrid of two species that, although native close by, are not locally native. I should not be so critical. It performs well within our landscapes.

4. Leucojum aestivum, summer snowflake does not wait for summer to bloom. We know it as snowdrop because it blooms when real snowdrop, Galanthus nivalis, would bloom. There is no confusion since real snowdrop is very rare here. I have actually never seen it.

5. Iris X germanica ‘Rosalie Figge’ bearded iris is redundant to a similar picture two and a half months ago, but continues to bloom. I am beginning to wonder if it ever stops now that it has been doing so continually for so long. Fortunately, no one is bored with it yet.

6. Camellia japonica, camellia is a different unidentified cultivar than that which posted with ‘Rosalie Figge’ bearded iris two and a half months ago, so is not so redundant. Most camellias were not blooming then, and even now, many are only beginning their bloom.

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

Winter Flowers Bloom In Season

Some flowers naturally bloom during winter.

Evergreen foliage and colorful berries might be more prominent than flowers about now. They should be. Evergreen foliage is, as implied, evergreen. Colorful berries need to be appealing to wildlife that disperses their seed through winter. Not so many winter flowers bloom, though. Most flowers want their bloom season to be favorable for their pollinators.

Flowers that do not rely on pollinators can bloom whenever they choose to. Yet, because they do not rely on pollinators, most waste no resources on floral color. Flowers are, after all, only colorful to attract pollinators. Therefore, if flowers that need no pollinators bloom now, most are easy to ignore. Flowers that are colorful now can probably justify being so.

Most colorful flowers bloom while their pollinators are most active, during warm weather. Some from cooler climates can bloom now simply because they do not know it is winter. Some from milder climates can bloom now because they do not know how cool winter is. Several winter flowers actually bloom now to exploit pollinators who are active in winter.

Winter flowers of some species of Salvia appeal very specifically to hummingbirds. Such species are native to regions where hummingbirds overwinter. Their floral colors are the sort that hummingbirds pursue. Their floral structure and nectar favor the eating habits of hummingbirds. They bloom during winter because that is when they expect their guests.

Camellias of various cultivars are among the most popular and reliable of winter flowers. Different cultivars bloom at slightly different times. Witch hazel cultivars can bloom nicely on bare stems where chill is adequate. Winter jasmine requires less chill and blooms as splendidly, but only with yellow. Oregon grape is also limited to yellow, but is evergreen.

Cool season annuals generally provide the most colorful of winter flowers. Unfortunately, most perform only until warmer spring or summer weather. Pansy, viola and primrose are the most familiar. Primrose becomes popular a bit later, and can continue as a short term perennial. Ornamental kale looks like big winter flowers, but is really big colorful foliage.