Wednesday, January 21, 2015

American Persimmon. Diospyros virginiana. 1.21.15

Image source:  Plant Illustrations.org 
Diospyros virginiana L.
Catesby, M., The natural history of Carolina, Florida, and the Bahama Islands, vol. 2: t. 76 (1754)
From "Today in History" via the Library of Congress,

On the afternoon of December 16, 1864, Union troops led by General George H. Thomas devastated Confederate forces at Nashville, Tennessee. The battle had begun the day before when Thomas initiated an attack after waiting some two weeks for troop reinforcements and favorable weather.

In November, in an effort to cut off General William T. Sherman's supply line, Confederate General John B. Hood, led the Army of Tennessee out of Alabama and toward Nashville. One of Hood's men remembered the grueling march from Atlanta to Nashville. "After the fall of Atlanta," Confederate veteran Milton Cox told his son John:

we marched northward into Tennessee over frozen ground and how cold it was! Our shoes were worn out and our feet were torn and bleeding…the snow was on the ground and there was no food. Our rations were a few grains of parched corn. When we reached the vicinity of Nashville we were very hungry and we began to search for food. Over in a valley stood a tree which seemed to be loaded with fruit. It was a frost bitten persimmon tree, but as I look back over my whole life, never have I tasted any food which would compare with these persimmons.

19th Century Persimmon tree, Lima Lake, Illinois   Source Univ Chicago.

 Credit line for image:  American Environmental Photographs Collection, [AEP Image Number, e.g., AEP-MIN73], Department of Special Collections, University of Chicago Library.

The image is not dated.  Either late 19th century or eary 20th century.  

American Persimmon is a native American tree, range extending through the old South, northeast to Connecticut, northwest to southern parts if Illinois, and northern Missouri, southwest into NW Texas.

The photo at left is at Lima Lake, Illinois.  I recall my Dad talking about Lima Lake, which was then considered a "swamp", and now would be called a wetland.  The wetland covered an expanse of 10,000 to 12,000 acres near Quincy, IL, the town where my dad spent his life, and where I was born and grew up.   I remember being told that persimmons were bitter, astringent fruits, not suitable for eating.  So never tried one.  I missed out.  A truly ripe persimmon is almost like juicy candy.

Best growth of persimmon was known in the Mississippi river valley, which explains why my Dad was aware of them.

I am interested in some of the native American plants and trees, especially those that might have grown where I grew up.  That is even though I don't live there, and haven't for many years.

Those plants and trees seem somewhat taken for granted.  There are few native American fruit trees - pawpaw, some plums,  and a few others.  Persimmon is also one, known to native Americans, eaten by them, and described in early European colonial works.
Natural range of American Persimmon, Diospyros virginiana.  Source:  JSTOR.org

Source for map image:  JSTOR

Other names for persimmon included  "simmon, possumwood, and Florida persimmon,".  I only knew them as persimmons.

As for growth of American persimmon, they are difficult to transplant at a large size, due to taproot.  Because of that difficulty, some nurseries offer trees at small size, and grow them in specialized tall, narrow, open bottom tree containers.  That is how the persimmon tree came to me from Burnt Ridge Nursery.

From US Silvaculture manual, "Approximately 50 percent of the total radial growth is complete in 70 to 90 days, and 90 percent complete in 100 to 109 days after growth starts in the spring (6). Persimmon responds well to fertilizer."  Based on that info, it seems to me that small persimmon trees should be given nitrogen fertilizer early in Spring or late Winter.  In my yard, that means pee-cycling then.  My tree is just a small sapling.  Other references state not to fertilize, but I think that fertilizing sapling trees might give them a boost, then stop when they are bigger.  The issue with excess nitrogen is it can cause fruit drop.  Fruit drop is not a concern until the trees reach bearing size.

 Also according to the silvaculture manual, trees take a long time to bear, may start in 10 years.  However, seedling trees of most tree species need to go through a maturation process, that is already accomplished in the scion of grafted cultivars.  Because of grafting, the maturation process is skipped, so they may bear - guessing - in 3 to 5 years.  I think the main challenge is getting them large enough, fairly quickly.  The manual also states, "Common persimmon grows in a tremendous range of conditions from very dry, sterile, sandy woodlands to river bottoms to rocky hillsides and moist or very dry locations. It thrives on almost any type of soil but is most frequently found growing on soils of the orders Alfisols, Ultisols, Entisols, and Inceptisols".  I don't know what those soil types mean, but have copied them for future reference.
Image source plantgenera.org

Maritime Pacific NW climate is quite different from the provenance of American persimmons.  I think there are still a lot of unknowns.  However, others have grown them here, and they are available at local mail order nurseries such as Burnt Ridge, Raintree, and One Green World.  The difference in climate is not more than, say, the difference for kaki persimmons, or figs, or peaches, apples, pears, from their origins.

Also from the manual, best growth  "is in areas that receive an average of 1220 mm (48 in) of precipitation annually, about 460 mm (18 in) of which normally occurs during the growing season. Over the range of persimmon, the average maximum temperatures are 35° C (95° F) in the summer and -12° C (10° F) in the winter."    The climate here has a dry summer, most rain being in fall / winter / spring.  Both summer and winter are milder than midwest.   The climate here could be more suitable, or less, or no significant difference, compared to native provenance.

My goal is get the tree off to a good start.  Provide mulch, water well the first couple of summers, provide adequate nitrogen the first couple of years at the right time, and see if we can get a good burst of growth so I have a taste in my lifetime.

The variety that I purchased is reported as not requiring a male pollinator.  If, some time, I find some scion for male persimmon, I may graft them onto either this tree or Saijo, or Nikita's Gift, to produce viable seeds.  That is not a priority for me.

According to One Green World Nursery, "American Persimmon can be grown in all but the coldest regions of the U.S. American Persimmon fruit is ready to eat when it is soft like a tomato... American Persimmon trees are easy to keep at 10-12 ft. in height with pruning."

 The variety I planted is Yates, which is apparently also  called Juhl.  As I recall, this variety originates in Indiana, is larger than most others, and has a darker orange color. 

Monday, January 19, 2015

Digging an Oriental Poppy to Re-Plant. 1.19.15

Oriental Poppy before digging.  1.19.15

Oriental Poppy.  Large hole.  1.19.15
 I dug this oriental poppy to move to the Battleground place.  It's about 13 years old, from seed.  It has been moved once before.

I dug around it like I would a tree, slice vertically into the ground.  Then dig around those slices, in a circle, removing the soil.  Then slice under it, and lift the clump out of the soil.

All came up as one piece.  I think I got the vast majority of roots.  It should survive, and possibly bloom, this year.

I placed the clump into a very large flowerpot.  I am without car today and tomorrow, then can take it to Battleground.

My grandfather liked growing Oriental Poppies.  So I have them partly to remember him.

I also dug up a large clump of daffodils.  Same method.  If careful, they move without a problem, and there is nice bloom the first Spring, as if they were in the new location for years.  More of those to follow.   Transferring as much as I can, little bit by little bit, to the Battleground place.
I think I got almost all of the roots.  1.19.15

Pruning Fig Trees. 1.19.15

Fig "Aubique Petite" before pruning.  1.19.15

Fig "Aubique Petite" after pruning.  1.19.15
 Today I pruned my two front yard fig trees in Vancouver.  These are among my oldest trees, about 13 to 14 years old.  They have spread too wide.  It is difficult getting bird netting over the trees.

Both bear mainly on new growth in fall - "Main Crop" but get a few summer figs on the previous year's growth - "breba figs".   If these were mainly breba varieties, pruning much of the growth now could mean loss of much of next summer's crop.  Since they are mostly main crop, production will not be so affected.

The goal was to make them a bit more compact while still having an open center, with the branches like the sides of a bowl.

I started by standing back and selecting which branches to remove close to the main trunk and scaffold branches.  With each cut, I backed up again to see if I really wanted to remove the next branch.

Once I removed the larger branches, I used the pruning shears to remove smaller ones, aiming always for a bowl shape with open center, and branches not spreading as far and wide.  Finally, I trimmed off some that looked frost damaged, and cut the tips from some to encourage close-in branching.

I'm happy with the results.  The trees are likely to respond with a burst of growth, but also have lots of figs that ripen nicely due to more sun exposure in the trees.  If I want to net the trees, it will be easier.

The last photo shows the cut end of a branch.  These fig trees seem to make multiple rings per year.  The branch can't be more than 14 years old, and probably more like 12.  I planted the tree 14 years ago.


Fig "Hardy Chicago" before pruning.  1.19.15

Fig "Hardy Chicago" after pruning.  1.19.15
Tree rings on 13-year old fig branch.  Ficus carica "Petite Aubique".  1.19.15

Winter Pruning Columnar Apple. 1.19.15

The same tree in 2009



North Pole Apple after pruning.  1.19.15

North Pole Apple after pruning.  1.19.15
Today I am on vacation.  Did a little pruning.  I am not up to a lot, but I can do a little.

I pruned North Pole apple tree, about 14 years old.  The goal is shorten the spurs enough to maintain columnar shape, exposing all apples to sunlight.  Shorten the top so all are within my reach.  I am 5'10 so that means, about 8  ft tall.

Next to clean up the mess under the tree.  Important for disease and insect prevention.  I didn't have the energy, but this week would be a good time.  Last year's apples were all wormy - I refuse to spray poison - and in my frustration, I didn't clean them up

Columnar apples are descended from a sport growing in a Canadian orchard on a McIntosh apple tree.   That was in 1961.  The original, named for the the farmer, is McIntosh "Wijcik".   Most if not all columnar apple trees are descended from the Wijcik mutation.   Hundreds of crosses have been made, resulting in many novel columnar apple trees.   I don't know how the apples, from those trees, taste, or how productive they are.  This North Pole is a good apple.  I am not a connoisseur, so not the best judge.  The main issue is wormy apples, which is culture method, not the tree's fault.  Cleaning up under the tree is important, and I plan to bag them next year. 

The gene leading to columnar growth has been mapped on apple chromosome #10, known as the "co" gene.   This gene is present in all columnar apple cultivars.   The mutation is entirely natural - Anthony Wijcik was looking at his McIntosh trees and happened to observe the unusual branch.  He cut it, using it as scion, propagated it, and ultimately sold it for propagation and development.  That tree was patented by Stark's Nurserys, but the patent has since run out.

Columnar apple trees are known in the UK as "Ballerina" trees.

 In wikipedia, Fisher is given credit for discovering the Wijcik McIntosh, but in Fisher's own writing, "At a Research Station Field Day in 1963, a grower approached me and said he had a peculiar stunted shoot of 'Mclntosh' originating adjacent to a cut at the top of a 50-year-old 'Mclntosh' tree. He had discovered this in 1961. I picked up an empty cigarette package and hastily wrote down his name and address, intending to visit him. Unfortunately I lost the package. Fortunately, two years later (1965) at a similar Field Day I recognized the same man, Mr. Tony Wijcik. Prior to harvest I visited his orchard in East Kelowna and inspected his sport. Although located in an advantageous position at the top of the tree in regard to light exposure, fruit from this sported shoot matured somewhat later than apples on the rest of the tree and had only fair color. The fruit was tightly packed on the very compact single shoot measuring about four feet in length. Mr. Wijcik had, by this time, taken buds and propagated a row of about 20 trees on M.26 rootstock."

I have tried to locate a patent on North Pole apple.  I don't think there is one.  It may have a trademark, which would mean progeny could not be identified by that name, but would be legal.

Back to  this particular tree, I have not found photos of old columnar apple trees.  Most catalog photos show very young specimens, often in containers.  They look like sticks with apples glued to the sides.  The mature tree is more sturdy, and the spurs tend to grow longer with time.

I have found that pruning the spurs back keeps the shape nicely.  I stubbed the top many years ago, and annually remove most of the growth above that point.  The bearing is prolific.  I just need a way to prevent insect damage to the fruit, which is true for all of my apples.

Sunday, January 18, 2015

Fig Trees. Progress Report. 1.18.15

Carini 3-stem.  1.18.15

Aubique Petite.  1.18.15
 Interesting results for me, with my row of figs south of the Battleground house.  Most were protected against voles, with hardware cloth, and against cold, inside inverted garbage cans.

With warm weather, I'm concerned they will break dormancy as the sun warms the cans, so removed them

Carnini looks good.  The can was not quite tall enough, so the top buds were smashed and bent over.  Otherwise, no obvious freeze or herbivore damage.

Aubique Petite, also good.  This has one good stem.  I hope it takes off and grows this year.  It's a very slow growing variety, but quite freeze tolerant and productive.   I never protect its parent in the Vancouver yard, and that tree has done well for 14 years.

The Unknown was a test.  I did not cover it with a garbage can.  I did enclose one stem in hardware cloth.  Animals shredded the stems.  The only viable looking part is what was in the hardware cloth.  That looks freeze damaged.  I don't care - I have plans to replace this one anyway.

Smith was covered with inverted garbage can, and each stem surrounded with hardware cloth.  That tree had the worst damage - most stems are vole-chewed beyond recovery.  I have a containerized Smith.  After more thatn 2 years of this one in ground, it's time to plant something else in that location.

Sal's took the freeze without damage, and without freeze protection.  I do have hardware cloth around the base.

Not pictured, LSU Tiger looks OK.  It was also a bit too tall for the garbage can and the tips were bent.  I pruned off the damaged tips.  Unless there is a really bad freeze, I think it will come through the winter OK.

Conclusions:

If the voles want it, they will get it. Smith must have really tasty bark and stems.

Protection does help somewhat.




Unknown, without protection in can.  1.18.15

Smith.  Protected in can and by hardware cloth.  1.18.15

Sal's.  Not protected in can.  1.18.15