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Wednesday, July 6, 2011

Field Trip This Saturday - Scheduling Conflicts?

Greener Gardeners:  

It has been pointed out to me that two other Extension Horticulture classes with some of our students have field trips this Saturday as well.  Because field trips are considered part of your instruction hours and you are expected to be there, this puts you in a bind - which instructor do you snub or what information do you dare miss?  

Orchid and I would like to do our best to ameliorate the situation and so tomorrow evening, I will present an option to the class that we do an afternoon field trip - from 1 to 3:00 PM.  If we can't agree on that, we'll revert to the original plan - BUT those of you having conflicts with our future field trips need to let us know as soon as possible so we can immediately look for solutions.  

I don't know that we CAN, but we will try.  One fine sunshiney day, Extension will require all instructors to submit their syllabus in advance so this can be done before the quarter starts, but until that glorious day, we muddle through as best we can.  

See you tomorrow night!

david

Thursday, June 23, 2011

Greener Gardens: Sustainable Garden Practices Biology X498.10

COURSE SYLLABUS

Instructors: David King and Orchid Black
Phone: redacted

COURSE TITLE AND NUMBER: Greener Gardens: Sustainable Garden Practices BIOLOGY X498.10

There are no prerequisites for this course. We will meet from April 05 through June 12 for 12 meetings. There are three field trips as indicated in our schedule (below). Class will meet in Botany, Room 325 at 6:30 PM Thursday evenings, but will likely move to Boelter Hall, Room 2760 on the third meeting, for improved blackboard space.

Course Purpose:

Sustainability is today's buzzword and many people seek to create a lifestyle with a more favorable impact on the environment. From home gardens to school and commercial sites, our gardens present the perfect place to start. Designed for horticulture students, gardening professionals, educators, and home gardeners, this course focuses on turning your green thumb into a "greener" garden. Topics include composting, irrigation, water harvesting, water wise plants, eating and growing local produce, recycling, and moving towards a sustainable lifestyle when choosing materials and tools. Includes weekend field trips to the Los Angeles River to see our relationship with water in the L.A. Basin, as well as a native garden with sustainable features, focusing not only on California native plants but also on water-conserving planting design. Students also visit the John T. Lyle Center for Regenerative Studies at Cal Poly Pomona, which advances the principles of environmentally sustainable living through education, research, demonstration, and community outreach. This course will enable students to understand and appreciate the changes we will need to make in our gardens to achieve ‘sustainability.’ A multitude of differing strategies will be presented allowing students to choose the extent of their involvement with more sustainable gardens and, ultimately, a more sustainable life style.

Course Objectives:

  1. Understand the concept of sustainability and its relevance to the modern garden.
  2. The reasons to consider sustainability.
  3. Be able to use the concept of sustainability in the creation of a garden and its maintenance.
  4. Understand and be able to present to others the concepts and ideas of sustainability and the myriad of alternatives to an overtly consumptive garden style.

Application:

This course is designed to be practical. Upon completion, students will be able to employ many different strategies to reduce consumption of water and oil-produced products and create beautiful and productive gardens that comprise a much smaller carbon footprint than most contemporary gardens.

Text for this course:

This course will not have a text. There will be an extensive bibliography from which the material presented has been gleaned; some books will be practical, some books theoretical, while others will present an overview of our current situation and the problems that affect our daily lives and the gardens we grow.

Course Schedule:

Mtg. Date Topic
1 23 June Introduction to Sustainability
2 30 June Design for Conservation of Resources
3 07 July Soils
4 09 July Garden Garden Field Trip
5 14 July Water I: Water Conservation
6 21 July Water II: Water Harvesting
7 23 July LA River Field Trip
8 28 July Sustainability of Front Yard Food
9 04 August Sustainable Planting Palette
10 11 August Habitat and Hardscape
11 13 August Lyle Center for Regenerative Studies
Subject to final
confirmation.
12 19 August Sustainable Gardening: The Next Frontier


Your grade will be predicated on class participation and your choice of two papers of no less than 5 pages or two projects (or a combination of one of each) on aspects of sustainability; topics and project possibilities will be discussed in class. We encourage students to use their own area of interests when choosing their topic or project.

Office Hours:

We will have no set office hours, however, we will be available by phone and by email. We are willing to meet with students by appointment.

After class is usually not a very good time because that’s when all students vie for answers and we are all tired after a long day. You can get a more thoughtful answer by contacting us another time.

Updates and Handouts

For this course we will utilize a blog page (lagardennotes.blogspot.com) to post handouts and extra material to the class. There is an RSS feed through which each posting is automatically forwarded to your email so you can have access to handouts whenever they are posted. This approach is most handy when dealing with field trips because links to maps can be posted and any last minute updates are easily available. If this technology is new to you, another classmate or David will guide you through it. It is not difficult.

Monday, April 4, 2011

The Garden in April

The summer garden's plants are in their little starter pots right now (vaguely reminiscent of training wheels on a bicycle) really begging to be transplanted into the earth. Tomatoes, peppers and cucumbers, the stalwarts of our summer garden are almost ready to hit the big time. In some years, it's too cool until after your taxes are done, but in many others, heed their pleas and put them out sooner.

It seems like the crops most of us think of as 'value crops' are the summer garden crops. Back in March, if I sowed a couple of short rows of purple snap beans. I Some folks swear they are 'purple green beans, ' but that seems a little contradictory to me. They aren't green, they're purple – until you cook them. Purple beans turn green when they are done to a toothsome crunch and so the beans tell you when to stop steaming them!

They are good, but in my book, they aren't the real deal of the bean world. In April, gardeners put out their main crop of snap beans. Most folks plant green beans, including, Blue Lake, Kentucky Wonder, Romano and others, either as a pole bean or a bush bean, depending on need, so check the package to make sure you know what you are buying.

I like to plant yellow beans, also called 'wax' beans. I hated yellow beans as a kid, mainly because they were different and I never saw them for sale in the grocery store; I didn't want anything on our table that wasn't on someone else's table. As an adult, I've come to love the yellow beans pickled. The yellow ones are like 'sunshine in a jar' that I can put on sandwiches and in salads all year long. Yum! I look for Pencil Pod or Carson, both of which are delicious and good croppers. For something a little different, plant Dragon Langerie, a Dutch variety that has purple strips down the large flat yellow bean. They can be quite large and still tasty.

In the first half of the month, start planting beans directly in the garden, I don't bother with transplanting from beans in starter packs. You can put out any bean from this point on, but I usually wait yet another month for the beans I want to dry, like the famous Italian Cannelini, or the American Cranberry Bean or Black Turtle, to insure they will ripen when the garden is basking in the dry heat of late summer/early fall. There are a lot of drying beans, but a gardener of a small plot can be forgiven if they pass on the dried beans – it can take a bit of space to get a decent crop. For the best drying bean selections look into Native Seed/SEARCH in Arizona or Seed Savers Exchange in Iowa.

Beans can be 'climbing,' 'bush' or 'runner' beans. Runner beans are somewhere in the middle and bear over a longer period of time, which is good if you want to have beans over several weeks or more. Runner beans look like some sort of compromise, being a bush bean that throws out 'runners' that look like they would climb if they could just get a little caffeine or something. If you plan on freezing or pickling your beans, bush beans will bear their crop pretty much all at once. Climbers will produce the most beans of all, as long as it stays warm enough climbing beans should keep producing until the weather turns cool – I have found, though, that maximum production can be halted by failing to keep them picked and at some point, I just give up on beans, so the bush beans are my choice.

About the same time you are putting your green and yellow beans into the garden, set out a couple cucumbers. I like Armenian and Japanese cucumbers which have the same mild flavor and awesome crunch, even though they couldn't look any more different! The Armenian cucumbers are a light green almost bordering on yellow, with smooth skin covering a straight fat cucumber while the Japanese are a very dark green, with massive prickles on a furrowed and absolutely convoluted twisty narrow cucumber. Both are delicious. The Japanese cucumber will bear over a longer period but there is much more eating on each Armenian cuke, so it probably ends up with both being about the same. Give both of them plenty of room! If your garden is small, allow these gangling fellows to climb up rather than out.

The beans and cucumbers aren't alone in being planted out about now. Tomatoes. However you say it, cucumbers and tomatoes are the number one plants gardeners think of when they think “Summer Garden.” There are more varieties of tomatoes than there are potholes in the greater Los Angeles area. Just check out the offerings of Seed Savers Exchange! Page after page of tomatoes. They come early, mid-season or late. Tomatoes are cherry, saladette, plum and beefsteak as well as black, cream, green, red, striped, yellow and many shades in between. Tomatoes come as plain ol' tomatoes or heirloom, and (had enough choices?) determinate and indeterminate. It's a complete overwhelm of choice. Determinate tomatoes are similar in growth to bush beans, giving you short plants that bear all at once (more or less), while indeterminate are like pole beans that bear over a long stretch and get quite large to boot.

Here are a few common ones to consider:

Cherry Tomatoes
Sweet 100 – a great productive and sweet little red tomato that is as dependable as a beach day in July.
Orange Sunshine – lots and lots of very sweet little tomatoes!
Golden Nugget – a ton of cream colored little guys that are sweet with low acid – always a bonus in my book.
Yellow Pear – a lot of folks like these, but I think they are mushy. Very productive though.
Saladette
Jaune Flammee – a lovely bi-colored tomato (give it something to climb on!) that is red outside and gold inside – good tasting and beautiful!
Green Zebra – yup, it's ripe when it's green. I think they are little too acidic, but plenty of my friends like 'em.
Moonglow - Solid orange meat, few seeds and wonderful flavor. A favorite of any one who grows it.
Black from Tula – not really 'black,' but a very deep red. Delicious, though not a heavy producer – the skin is so thin I think it's best to take your plate and fork to the garden and eat it right at the plant!
Stupice – a small early plant that is worth growing because they also taste good and come in quick!
Plum (or paste tomatoes)
Black Plum – almost a mahogany tomato – tasty and meaty, an indeterminate tomato that produces quite nicely
Cream Sausage - A unique colored variety with creamy white to light yellow sausage-shaped fruit, very productive bushy plants do not require staking; a really different tomato sauce!
San Marzano – the most productive of the paste tomatoes and the biggest plant in this class of tomato – a very good, standard production tomato for paste tomatoes.
Beefsteak
Brandywine – the taste that everyone is looking for in a big tomato, winner of many different taste tests. We can't really grow them very well in West Los Angeles because they need 85 F through the night as well as the day. Pasadena and other points inland can grow them, though.
German Johnson – a large pink tomato that is really juicy and yummy.
Mortgage Lifter – there's a great story about the name of this tomato I'll tell you at a cocktail party one of these days. For now, I'll say it tastes great and is not less filling, a lovely juicy tomato that rates.
Persimmon – this is the largest tomato I've ever grown in West Los Angeles. One sliced tomato could fill two dinner plates with meaty orange/yellow slices. However, the six foot plus plants only gave me one tomato each! Way too much space even though they were the sweetest and tastiest tomato I've had the pleasure of growing.

You'll notice I didn't include any of the Best Boy or Early Girl or other common hybrids. It is true they are productive and will give you a good crop of bright red fruits, but I think they are too acidic and have tough skin, so I don't grow them at all. There are so many delicious tomatoes in this world, to stick to those few seems silly to me. I grow my standards (San Marzano, Jaune Flammee, Black Plum and Garden Peach) but I always experiment with some new tomatoes every year! Plant lots of basil and marigolds at the same time you plant your tomatoes they make good companion plants.

When transplanting tomatoes from it's container to the ground, set them deeper in the soil than they were in the container. This is a great exception to the rule (almost all other plants should be set in the ground at the same level they were in the container) because a tomato stem will sprout roots all along the stem that is in contact with the soil. If the soil is really cold however, you'll have to resort to a more advanced technique. Tomatoes, being a tropical plant, do not like cold soil and the deeper you go, the colder it gets (and stays colder longer), so don't dig deep to plant tomatoes. Instead, if you have long plants, dig a shallow trench and lay the plant in on its side, gently bending the top to an upright position. The plant isn't deep in cool soil and yet it gets to make a lot more roots from the buried stem. (If you planted the tomato straight on down, the soil would not be warmed for a lot longer and the sulking tomato plant would refuse to grow until the warmth was felt that much deeper in the soil.)

And I haven't even mentioned later in the month! After the taxes are in, set out growing plants of peppers, eggplants, okra, melons, zucchini, summer squashes and tomatillos. Sow seeds of corn directly where they will grow. Pumpkins are a winter squash and all those hard skinned squashes should go out in May or so. They are really heat lovers.

Peppers and eggplants are easily grown once it has warmed up. They usually get about 3½' tall and need about two feet between plants. As with most vegetables, you need to give them all th sun you can. You can also try growing some lettuce in the shade of larger plants. Lettuce dislikes heat, but I like tomatoes and lettuce at the same time and it's easier trying to get lettuce in summer than tomatoes in winter.

I love peppers but I hate eggplant. Both however, are beautiful additions to every garden. Peppers come in a wild variety of colors – all start green and eventually change to whatever color they want to be – every green pepper you've ever eaten would have turned to some other color if we'd only practice more patience. I like Anaheim, Early Jalapeno and Corno di Torno (Italian for 'Horn of the Bull') for warmer peppers and Cubanelle, Sweet Banana and Marconi for a sweet pepper. Eggplants can be Asian or Italian – I like the Italian Listada de Gandia or Rosa Bianca, primarily because they are very good looking in the garden. I have no intention of eating them. There are deep purple ones (almost black) and white ones as well as Turkish Orange and green eggplants.

Okra can be planted late in April/early May. Clemson's Spineless, Burgundy, Annie Oakley, and Star of David all are prolific producers. Put on a pot of gumbo in late summer! I'll eat 'em if I don't see 'em.

Not enough has been said about basil, but Genovese basil is the best in my book. Not just good production, but wonderful aroma and the taste is incomparable. Pick leaves all summer to keep it producing – once there are two pair of leaves on a stem, that stem will commence to flower. Once a flower has set seed, the plant begins the process of dying. If you keep it well picked, the plant gets bushier and bushier and you get a lot more basil from each plant. Throw the pickings in soup, salads or directly in your mouth!

Sweet corn is another delight of the summer garden. It is a little tricky to grow in our small gardens though. Corn, like all the cereal grains, is wind pollinated. The tassels atop the plant are the 'boy' flowers and the silks on the ear are the 'girl' flowers. The tassels produce loads of pollen that must reach the silks to fertilize them and create the corn seeds. This is hard to do if you don't have a lot of corn plants with pollen to be blown onto the silks. It is best to plant corn as a block of plants rather than one long row. There needs to be a critical mass of male flowers to produce pollen that falls on the silks. You can go out and shake the flowering corn stalks to cause the pollen to fall down and assist in corn sex if you're the adventurous type. If you've ever eaten an ear of corn and found a spot where there was a space instead of a kernel, that shows that one silk was not pollinated because every kernel has its very own silk. To get a fully populated ear of corn, every individual silk must be fertilized.

Boy are we busy this month! Don't worry. If you fail to get everything done, you can keep at it for the first two weeks of May. There is no need to rush in Southern California. Our climate forgives us for being too early or too late most of the time, so you can go wrong, but you have to work at it pretty hard. 

david 

Friday, March 18, 2011

FIELD TRIP CANCELED

Due to unforeseeable circumstances beyond my control, the field trip for this weekend is canceled and we will meet at The Learning Garden at our regular time and our regular place.  Please note:  because of impending rain, I will be getting a classroom - still, plan on meeting at the Garden where I will direct you to our room.

Sorry for the last minute change of plans.

david

Thursday, March 17, 2011

Field Trip This Weekend - IMPORTANT NOTES


From Katarina Erikson, our hostess for this Sunday's field trip, we learn that "the LA Marathon is running on Wilshire making the only access from Constitution off Sepulvada. I will have blue "Plant Sale" signs and arrows, so the class should look for the signs and follow them to the Garden/Nursery.  Also give extra time since there will be heavy traffic."
 
In the map above, the nursery is just above the Jackie Robinson Stadium (the red 'A' balloon).  If you have to come in from below Wilshire, and it is blocked for runners, use the freeway!  Take 405 north to the exit above Wilshire and come back south.  You all have my cell phone number, I'll help you get to the site.
 
Just to add to the mix, I see rain is predicted for Sunday.  Bundle up and wear your booties and I'll see you there!
 
david

Sunday, February 6, 2011

Preparing for Our Field Trip (Saturday) to CRFG

Scion Wood Preparation

Select straight wood from last year’s growth and cut as near to our scion wood exchange date as possible.  

Wood should be ¼” – 3/8” diameter (pencil size) and contain several buds.

Cut to lengths that fit easily into a Ziploc-type bag.  Cut with a slanting cut on the top (distal) end and flat cut on the end that would have been nearest the trunk (medial).

Bundle by variety in a moist paper towel(s) and place in a Ziploc-type bag,  leaving a slight opening in the Ziploc bag for the wood to breathe. Put only one variety in each bag. Make sure that the towel(s) stay damp as long as the wood is stored.

Label the outside of the bag with fruit type and variety, as well as any additional information you feel is pertinent (i.e. minimum chilling hours; needs pollinator; vigor; area where successfully grown, etc). It’s nice to add your name so that those collecting your wood know where the wood came from and can ask you questions about the parent tree.

Keep the scion wood bag in the vegetable bin of your refrigerator until the morning of the exchange.  Be careful not to let the scion wood freeze!
 
 At the exchange, please wait to make your selections until directed by the Chair.

Please limit your selections to two of any variety, until everyone has had an opportunity to collect wood. Then feel free to go back. Please do not collect wood you do not plan to use.

What to do with your collected scion wood after the scion exchange:

Try out the techniques you have learned as soon as possible! If you don’t plan to graft as soon as you get home, remember to add moist paper to the bag and refrigerate until you have the time to graft. Do not freeze!

Be careful with the label. An all too frequent mistake is to put the label in the bag with the wood. Then, when you add moist paper, the label becomes unreadable.

To avoid bringing disease into your garden, immerse your chosen scion wood cuttings in a solution of one part bleach to nine parts water for 10 seconds.

Have fun creating your trees!

From the CRFG Santa Monica Chapter's newsletter...
david

CHOOSING ROOTSTOCKS FOR PROPAGATION

The lower portion of the a fruit tree is called the rootstock. This is the portion of the tree that has been grafted over to a specific variety. Different rootstock's provide opportunities for everyone to enjoy the thrill of growing your own fruit. If you have limited growing space you could choose a dwarf rootstock that limits the height of your tree to as little as 5 feet! There are possibilities and sizes to match almost any need. Lastly, pruning has a great impact on size, if you need to maintain a certain height then also prune in the summer.

NOTE: Mature tree size is determined by the rootstock in combination with the vigor of the variety. For example, a Northern Spy or Gravenstein on a semidwarf rootstock will be larger than a Jonathan or Idared on the same rootstock. Research has shown that the growth of a tree composed of two parts is a compromise between the rootstock and the scion.

It is important for the relationship between scion and rootstock to be close. The botanical classification can only serve as a rough guide being founded strictly on reproduction parts of plants. Something greater than kinship is required for a graft to be successful and that depends on similarity of vegetative characteristics. For example, pears (Pyrus communis) will form a lasting union with hawthorn (Crataegus oxyacantha) and medlar (Mespilus germanica), but the joining of species within a given genus is much more common.

Symptoms of incompatibility are either immediately visible when the graft simply fails to take but just as often are not apparent for many years afterwards. The most common evidence later on is that the composite tree breaks off at the graft. The problem of incompatibility might be exacerbated by multiple grafts.


APPLE ROOTSTOCK

MM111 (Semidwarf) Produces a tree 70-80% of standard size. Growth tends to be upright with wide crotch angles. Well anchored, resistant to drought and high soil temperatures. Excellent semi dwarf rootstock for heavy soils. Resistant to wooly aphids. Disadvantage is burrknotting. Bears fruit 3 to 4 years and grows to 15 to 18 feet.

M9 (Dwarf) Produces a tree 30-40% of standard size. Resistant to collar rot and rarely produces suckers. Withstands heavy soils and wet conditions. Disadvantage is that roots tend to be brittle, so trees on this rootstock require staking throughout their entire life. Not suited to dry, light soils. Bears fruit 1-2 years and grows to 6-9 feet.

EMLA 27 Can be maintained at only four to six feet in height. It is well suited for growing in a container of a small yard. Trees grafted on EMLA 27 bear early and heavily. They should be staked.

EMLA 7 Produces a semi-dwarf tree 11 to 16 feet tall. Does well in most soils annd produces fruit in about three to four years. Does well in even wet soils, but is inclined to suckering wherever planted.

EMLA 26 Will produce a dwarf tree from 8 to 14 feet. Des well in most soils, producing fruit in about two to three years. Needs staking in windy sites and is relatively sucker free. This is the rootstock I have chosen for this class.

PEAR ROOTSTOCK

Standard Produces a strong well anchored tree. Trees are vigorous and tolerant of drought and wet soils. Bears fruit between 6-12 years and grows to 20-25 feet.

OHxF 333 (Old Home and Farmingdale) Produces a tree 50-70% of standard size. Resistant to fire blight and pear decline. Does not sucker and developes hardy well anchored tree. Tolerates a broad range of soils. Bears fruit between 3-4 years and grows to 12-16 feet.

STONE FRUITS ROOTSTOCK

Lovell Produces a strong well anchored tree with resistance to bacterial canker. Tolerates cold and wet soils. Susceptible to nematodes in sandy soil. Bears fruit 2-3 years and grows to 15-18 feet.

Mariana Produces a shallow rooted tree allowing greater tolerance to wet soils. Resistant to oak root fungus, some nematodes and brown line. Slightly dwarfing for plums and apricots. Bears fruit 2-3 years and grows to 15 – 18 feet.

Mazzard Cherry rootstock that produces a large tree well anchored that tolerates heavy soil. Resistant to oak root fungus and root knot nematodes. Bears fruit 5-6 years and grows to 20-35 feet.

Mahaleb Cherry rootstock that produces a standard size tree for sour cherries and slightly dwarfing for sweet cherries. Prefers well drained soils. Resistant to crown gall, bacterial canker, and some nematodes. Hardy to zone 4. Bears fruit 3-5 years and grows to 20-30 feet.

Colt Cherry rootstock that produces wide branched angles on a well anchored tree. Tree is 70-80% of standard. Resistance to bacterial canker and crown gall. Hardy to -10 F. Bears fruit 3-4 years and grows 15-20 feet.

G.M. 61/1 Cherry rootstock that produces a open, moderately vigorous, frost resistant, few suckers and thrives in heavier soil. Bears fruit in 3-4 years and grows to 8-12 feet.

Myrobalan Produces a tree with great anchorage and tolerant of wet soils. Susceptible to oak root fungus and nematodes. Bears fruit in 2-3 years and grows to 12-18 feet.

Nemaguard Produces a vigorous tree in well drained soils. Susceptible to wet feet. Redundant phrase, but needs to be said, nematode resistant. Bears fruit in 2-3 years and grows to 12-18 feet.

Citation Produces a tree 50-65% of standard in peaches and 75% of standard in apricots and plums. Strong well anchored. Resistant to nematodes, tolerant of wet soils, no suckers, and cold tolerant. (zone 4). Bears fruit in 2-3 years and grows to 12-16 feet.

NUT ROOTSTOCK

Almond Resistant to bacterial canker and nematodes. Bears fruit 3-4 years and grows to 10-14 feet.

Pecan Bears fruit 5-8 years and grows to 30-60 feet.

Walnut Bears fruit 5-10 years and grows to 18-30 feet

From the Raintree Nursery Catalog...

david

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