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Greenhouse Henry Ford Hospital Michelle Lutz

Michigan’s Henry Ford West Bloomfield Hospital upgraded the condition of its food by adding a greenhouse. Michelle Lutz oversees production of vegetables, fruits and herbs, used in preparations such as braised romaine salad. / Photos courtesy of Henry Ford West Bloomfield Hospital

Greenhouse seedlings, transplants are ready six to eight weeks early and you can grow Out-of-Season Treats in winter! Pest and disease free equals greater production! For institutions like hospitals, greenhouses are workhorses! A greenhouse is a most valuable part of a productive home garden. Seedlings are ready for earlier planting. Hospitals want the best food possible for the health of their patients, and can’t afford to be weather dependent.

As a home gardener in coastal SoCal areas you may question the need for a greenhouse. Though unheated, ours at our mile-from-the-beach community garden is well used! We often run out of space for everyone’s seedlings as we get closer to planting time or the weather warms! Even unheated, an enclosed space is heated by the sun during the day and doesn’t get so cold at night, no chilling winds or late freezes in there! Seedlings are protected from marauding pests, birds, walkabout creatures. Foothills and inland gardeners get more heat and more COLD! They really can use greenhouses to advantage.

Greenhouse Long CucumbersIn addition to starting preseason transplants, in a heated greenhouse you can grow out of season tomatoes, peppers, lettuces, cucumbers, beans, eggplant, zucchini, cantaloupe! Herbs, chard, raspberries and strawberries! And winter crops too if you just have too much snow outside!

Your greenhouse doesn’t need to be huge or showy. It just needs to do the job.

Super options!

Our land is flat, but yours might have slopes and you could choose to have an earth shelter space complete with indoor shower! See also Heating Greenhouses Without Electricity!

Greenhouses come in a vast variety of shapes from squares to pillowdomes! Buy a premade kit or design and build it yourself entirely to your specs.
You can have a 2′ wide up against the chimney mini to a palatial entire rooftop greenhouse with an elegant view!
You may have a built in the ground greenhouse cousin, a cold frame, or an indoor kitchen window box.

Materials vary from hoop frames to the fanciest filigree and glass, cob or strawbale! They can be spanking new, made of have-arounds, or be recycled from demolition sites! Covering materials can be poly films, panels, glass and glazing. There are so many new products, techniques, new research, all the time, and each person’s needs are so different, it is wise to check these things out for yourself. Talk with several ‘experts’ on each topic. Read up online. Compare. See what you really want. See what will do the best job for your needs.

If you have space for a larger greenhouse, consider gardening some of your crops in it! Hoop houses, or high tunnel farming is a recent invention. They are certainly the larger version of traditional row covers! There are huge commercial installations. Yet home made hoop houses can be no bigger than 8X8, so easy to put up a child can do it!

  • Season extension is the #1 advantage. 30 days on the front end and 30 days on the back end of the growing season is equivalent to moving your farming operation 400 miles to the south!
  • Yields increase when your plants are protected from excessive rain and wind. When a more ideal growing temperature is maintained, a reduction in temperature-related stress, fruit set, fruit size increases.
  • There is no bolting, so no loss of your plant’s production.
  • Because temperatures are maintained, you can plant when you want to, not have to wait until conditions are favorable.
  • Soil conditions are more controlled, less moist, less to no fungi – wilts, blights.
  • No pests, no pesticides! No birds, small mammals.
  • Plus, they are movable!

Greenhouse Energy Efficient Attached Lean ToEnergy efficient attached greenhouses make a lot of sense. The home, and these bricks, help heat the greenhouse for free! Some attached greenhouses are beautiful walkin sunrooms, garden rooms, conservatories!

If you decide to build a greenhouse yourself, first check on local ordinances and with your neighbors. Place it conveniently, near electrical and water access if possible. Choose a location with a winter angle for maximum light, as much sun as possible. Use trees for windbreaks if necessary.

Know your prevailing wind direction, be sure it is well anchored. Use concrete blocks with eye hook attachments, sink posts or anchoring stakes, or use sand, not rocks, on the windward base cover.

Your roof choice tells us what kind of weather you have! Steep slopes and insulated lower areas tell us you are in high cold country with snow and need to decrease your heating costs. Medium slopes with rounded shoulders are good in windy and rainy areas. An extended slope on one side that faces the sun tells us you may get a lot of shade from trees on one side.

Doors make a difference. If you are in a windy area, you might choose sliding doors that can be secured and weather stripped versus velcroed flaps, zippers or swing out doors that blow away or animals could get through.

Ventilation is key! Hot days are hot! In two shakes a greenhouse can to get up to 110 degrees! Doors and windows can be the vents if intruders are not an issue, otherwise, ceiling vents are best. Solar devices can be set to open when temps hit a high level. Fans may be needed.

Greenhouse sloped for lots more Solar energy!Electrical! Get advice from a greenhouse experienced professional because of the extreme conditions: heat, wet, cold. Make sure that person knows local codes
Consider solar lights, vent openers, fans or simply long sloped sides to have lots more solar energy as in the image!
Growlights? Yes!
Night light to see by
Computer monitor

Irrigation tips! Put your timer OUTSIDE! Make & see your adjustments without getting wet! Mini drop down sprayers or foggers at varying adjustable heights along an overhead line are fabulous! Consider recycling your water – is it legal to use grey water where you live? Collect rainwater.

A word about Damping Off. Damping off is a common problem with seedlings started in containers, indoors or in greenhouses. Per Planet Natural: ‘Several fungi can cause decay of seeds and seedlings including species of rhizoctonia, fusarium and phytophthora. However, species of the soil fungus pythium are most often the culprit. Damping off typically occurs when old seed is planted in cold, wet soil and is further increased’ by poor soil drainage.

Disease Cinnamon Damping Off PreventionThe super simplest prevention is Cinnamon! Just sprinkle it on the soil! Sprinkle on plant injuries and they will heal. It is a rooting hormone. Mildew, mold, fungal diseases? Mix 4 tablespoons cinnamon in a half gallon warm water, shake it vigorously, steep overnight. Strain through a sieve or coffee filter and put it in a spray bottle. Add ¼ teaspoon liquid dish soap as a surfactant, lightly spritz your plants, undersides and tops of leaves! (In Santa Barbara area buy it in big containers at Smart & Final.) Also, it repels ants!

Pathway and Flooring best for your plants and feet! Have a sturdy pathway that stands up to wheelbarrow use. A non muddy pathway saves your greenhouse floor. A raised flooring keeps you from having a muddy mess. Drainage is necessary so there is no rot or mold. Heated flooring is the best. There are great options, more and less expensive! Concrete, rubber matting saves your feet. Dirt, my last choice, and/or pavers. Decomposed granite, pea gravel, raised wooden slats, pallets, straw, chips – use weed mat underneath! Use pest protection wire under weed mat and soft flooring choices. No gophers, no mice, squirrels, bunnies or snakes, thank you.

Greenhouse Shelving FanShelves and Worktable

Make your work table a good working height for you
Shelving needs to be safe and well supported
Construct your shelves wire covered like the top shelves in the image, or like the lower shelves, out of spaced boards so water drains, the boards dry, there is no mildew or mold.
Enough space between boards makes it easy to clean
Or use open wire metal shelving that allows drainage and dries
If there is lower shelving, slant it down from back to front

  • so you can see what is in the back
  • It is easier to get items in back out – keep heavier items to front
  • No water clings to it – stays dry, no rot or mold

OR some say don’t have bottom shelves so there is no nesting space for mice or chipmunks – they WILL eat your plants! You want to be able to SEE the ground! Depends on how critter secure your house is.

Rather than just the greenhouse, consider a 4 part working complex! A storage shed, the greenhouse, a covered work area and hardening off area.

Tool & Gear Storage could hold your tools and supplies!

Wheelbarrow, all tools – shovel, rake, pitchfork, spade fork
Small tools – trowel, clippers, sprayers
Bags of compost, potting mixes etc
Plug trays, biodegradable containers, labels
Gloves, apron, work boots, jacket
Greenhouse gear & replacement materials

Greenhouse Support Supplies!

Heating gear – heaters, heating mats
Cooling systems – fans
Irrigation, misting items
Lighting – grow light, night light
Thermostat, humidity (no mold), temperature   devices, CO2 generators
Secure, safe-for-children and pets, dry storage containers

Your Workspace needs a sun shade top and wind screen side. It would be a good place for your composter, worm bin and might be a good place for your rain collector barrels

Care and Maintenance

Seasonal checks, reset watering needs, replace brittle coverings
Routine cleaning inside and out
Equipment
Sterilize propagation area
Ventilation – Heat, condensation. Insulation – Frost
Deal with pests and diseases immediately!

Greenhouse Reused Doors and WindowsGreenhouses made of reused doors and windows are much more green than recycling!

Sustainable Greenhouses are often compost or solar heated!
They have heated benches and floor because root zone temperatures are more critical to plant growth than leaf temperatures. By maintaining an optimum root zone temperature, greenhouse air temperatures can be lowered 15° F!
LED’s balance good light, cooler temps
Hydroponics (preferably aeroponics) remove excess heat and water vapor
CO2 is recycled by breaking down old plant debris in a digester
Soluble components of the plant debris can be incorporated back into the nutrient solutions.

5 Sustainable Sources to stir your thinking!

  1. Eco-Friendly Greenhouses
  2. National Sustainable Agriculture Information Service:  Greenhouse Production
  3. Sustainable Architecture, Greenhouse Book & Video List
  4. Kiva’s straw bale greenhouse – the time & money it takes
  5. The Ghandi of Greenhouses – The Greenhouse Biz

Rooftop greenhouse with a view of the city! Germany Fraunhofer UMSICHT

Fresh City Tomatoes, Any Time! On his way home from the office, the computer scientist harvests tomatoes from his company‘s rooftop greenhouse. No food miles! Why not produce lettuce, beans and tomatoes where most of the consumers are to be found: in the city? The flat roofs of many buildings are well-suited for growing vegetables. Rooftop greenhouses can also make use of a building‘s waste heat and cleaned waste water. Solar modules can do the rest. This uptown rooftop greenhouse urban garden is in Germany. Image courtesy of Fraunhofer UMSICHT.

Greenhouse Conferences! Tradeshows, sustainable, educational. Local, international! If you love greenhouses, might want to do urban agriculture business, just want to get involved, check these out online. There are different sponsors, different locations each year!

Whatever your special connection is, in SoCal, before our winter rains and cooler weather, late summer, early fall are perfect for getting your very own fine greenhouse up and running! If you miss that window, very early in the new year is good so you can start seedlings for early March plantings!

You might decide to sleep in it the first night!


The Green Bean Connection started as correspondence for the Santa Barbara CA USA Pilgrim Terrace Community Garden. All three of Santa Barbara’s community gardens are very coastal. During late spring/summer we are often in a fog belt/marine layer most years, locally referred to as the May grays, June glooms and August fogusts. Keep that in mind compared to the microclimate niche where your veggie garden is. Bless you for being such a wonderful Earth Steward!

Love your Mother! Plant bird & bee food! Think grey water! Grow organic!

 

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BLACK FRIDAY GARDEN GIFTS!  Gifts to Give, Gifts to Get!

Pour a little garden love into your loved one’s life this holiday season!

Lovely Fitz and Floyd Vegetable Garden 8" Pitcher seen on eBay at BlueHowMuch! $29.95

Make Organic, Sustainable Holiday Gifts!  This is the prime time to start winter gift plantings for holiday giving!  Start a salad bowl, make some pesto ice cubes – harvest before your basil freezes, collect basil seeds while you are at it!  Gather seeds to put in pretty little jars – label and tie with a bright festive bow.  Some of those seeds can be used for seasoning, some for planting!  Dry and powder some herbs for teas, pillows, sachets!  Make scented candles or creams, soaps or shampoos!  Sage darkens your hair, chamomile lightens.  Make an herb wreath, or classic orange pomander balls.  Herbed vinegars & oils are simple to make, and beautiful!  In white wine or rice vinegars:

  • Lavender is rose red
  • Nasturtium flowers release neon orange
  • Sage in flower & purple basil are magenta!

Likewise, be thinking of what you can give your loved one or good friend in the way of gardening items!  Buy local!  How about that special tool, a new shovel?  Some seeds?  A container or garden decoration they have been longing for, a beauteous trellis.  Oh, some of those fancy flowered rain boots?!  YES!  Gloves – those old ones are worn out, you know.  Supplies like special potting mixes, fertilizers.  Books on the topic dearest their heart – Recipes, garden specialities, California Master Gardener Handbook!  Sponsor them for the class they would like to take but didn’t have the dough. Garden plates and mugs.  That catalog and a gift certificate to go with it!  Local services, like an hour of time on something that takes a little more doing than one person would like to do alone, or a consult with your local sustainable landscaper!  Hey, it’s a win/win!  It’s sustainable and makes you both happy!  Trifecta!

Oh, and don’t forget to leave your own garden shopping list lying about the house…if someone tries to discourage you from buying something on the list, let them.  Who knows what will show up with a bow on it?!

Next week:  A Little About Onions, a LOT About GARLIC!

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What’s happening with my tomatoes?! 

Early BlightFusarium Wilt, Verticillium WiltLate Blight

Tomato – Healthy SunGold!

Tomato – Verticillium Wilt

This?!                                                 Or this?

This is bar none, the most common summer question I get asked! Potatoes, tomatoes, and the various forms of lettuce are the top three favorite vegetables in the US, so you can see why this is THE question!  Since fungi spread as simply as by the wind, I will be campaigning for more tomato plant care, starting with what people can do now to keep the fungi from overwintering, then in the spring to lessen its chances.  There are more things that can be done than I knew!  Read on! About Fungi   To emphasize the potency of these fungi:  Late Blight of potatoes and tomatoes, the disease that was responsible for the Irish potato famine in the mid-nineteenth century, is caused by the fungus-like oomycete pathogen Phytophthora infestans. It can infect and destroy the leaves, stems, fruits, and tubers of potato and tomato plants. Before the disease appeared in Ireland it caused a devastating epidemic in the early 1840s in the northeastern United States. Not only do the fungi feed on your tomato plants, but take a look at your potatoes, peppers, eggplant, cucumbers and beans!  See those yellowing leaves?  Remove and dispose of them ASAP!  That removes zillions of spores so they can’t spread.  The wilts and blights also affect trees!  Sadly, not only do your plants look depressing, production is zilch, they die an unnatural death.  Remove, replace.  Be happy. How do fungi work?  Spores are spread by rain/watering splash, insects, and wind, and through our hands and tools (wash your hands and tools after handling infected plants) and through these mediums, can travel distances.  That’s why it is so important, in our community garden, to tend our plants, so our neighbors’ plants won’t also be infected.  Educate your plot neighbors, better yet, send this to them!  Spore spread is most rapid during conditions of high moisture, marine layer days, and moderate temperatures (60°-80°F).  Once established, the fungi can over winter in your garden on debris and weeds. What they look like on your plant: 

Tomato – Early Blight

14 Fungi Preventions!

Cultural control practices alone won’t prevent disease during seasons with wet, cool weather. However, the following measures will improve your chances of raising a successful crop.

Things you can still do this season!** Things you can do now to prepare for next season!**
  1. Buy toms that are tagged VFN, or just VF – that’s Verticillium Wilt and Fusarium resistant or tolerant. Varieties that set fruit early, at lower temps, are Early Girl Improved, Fourth of July, Enchantment. Excellent resistant varieties are Champion, Husky Red, Better Boy, Ace Hybrid, Celebrity.  
  2. Plant only healthy-appearing tomato transplants. Check to make sure plants are free of dark lesions on leaves or stems. If starting transplants from seed, air-dry freshly harvested seed at least 3 days.  
  3. Remove volunteer tomatoes and potatoes.  If they are a not a resistant or tolerant variety, when they get sick, they increase the chances of your resistant varieties having to fight harder to live, and your good plants may not win the battle.  Do not let volunteers grow, even on compost piles, cute as they are. Infected tomato refuse should be put in the trash.  
  4. **Create a soil barrier, mulch!  You can layer newspaper/cardboard covered with mulch or grass clippings.  Anything organic, as you wish.  One to 2 inches of straw is easy to lay on.  You want to create a splash barrier. Seal the soil and you reduce the chances of spores finding your plant. Bottom line, you don’t want your soil to contact your plant.  
  5. **Avoid wetting foliage when watering, especially in late afternoon and evening. Water at the ground!  Watering the leaves creates a humid micro climate; the fungus produces spores. Dry leaves. Dry leaves. Dry leaves.  No moisture, no spores.  
  6. **Air circulation, plant staking and no touching. Air circulation allows the wind to blow through your plants. This allows the timely drying of leaves and it helps break up micro climates. If your plants are packed too tightly together, they themselves become barriers to drying. Staking your plants to poles and using cages helps them grow upright and it creates gaps between the tomato plants. You want to wind and sun to reach through and around your plants. Moisture is needed for fungi to spread. Dry is good. Tomatoes should be planted with enough distance that only minor pruning is needed to keep them from touching each other.  
  7. **Spray proactively. Wettable sulfur works.  It is acceptable as an organic pesticide/fungicide, is a broad spectrum poison, follow the precautions. It creates an environment on the leaves the spores don’t like. The key to spraying with wettable sulfur is to do it weekly BEFORE signs of the disease shows. Other products also help stop the spread. Whatever you select, the key is to spray early and regularly.  
  8. **When they are about a foot tall, water neighboring plants, but not your toms.  That keeps the soil drier near your plant, so the fungi can’t thrive there.  Your tomatoes will get plenty of water from their deeper roots.  
  9. **Remove bottom leaves, again, no touching (the ground), and prune your plants.  Barbara Pleasant at Mother Earth News says, ‘When the lowest leaves are removed just as the first leaf spots appear, you also remove millions (zillions) of spores. And, because the bases of pruned plants dry quickly, the spread of the disease is slowed because early blight fungi need damp leaves in order to germinate and grow.’  Create an 18 to 24 inch barrier gap or safe space between your garden soil or mulch and the first leaves of the tomato plant. If the spores can’t splash upwards and reach the leaves, they can’t take hold. The stem usually isn’t a place for the spores, though it can be. Best is to remove the bottom leaves before the spores start!  If you have large plants, you might consider cutting off some branches to let the sun and wind blow through the main body of your tomato plant.  But, some gardeners don’t recommend pruning or snipping the suckers, the mini branches formed between the trunk and branches, because spores can enter through these cuts.  If you decide to prune, the less cuts the better.  Prune on hot, dry, unwindy days, mid morning to midday, after dew has dried, so cuts can dry and heal with less chance of airborne fungi getting into them.  Try not to touch the cuts after they have been made.  Use clippers for a clean cut.  
  10. **Remove infected leaves immediately. A leaf should be completely green. Look for brown spots or yellow spots or distress. Remove leaves and prune when it is dry and sunny, not windy. Wash your tools and hands often.  
  11. After the tomatoes set, add some nitrogen. A healthy plant tends to fight off the spores. You don’t want to add too much nitrogen to your tomatoes before they set fruit. Too much nitrogen before fruiting leads to more leaves and less fruit. Add N only once.  
  12. **Rotate your crop if possible. Because fungi also affect other plants, rotation in small gardens isn’t practical or even possible. But if you have the room, move your tomatoes to areas that are fungi free.  
  13. ****At the end of the season remove, don’t compost, all infected debris and surrounding debris. Pull all the weeds because spores can over winter on weed hosts. You want to reduce the number of spores laying in wait.  
  14. **The spores aren’t super spores. During our winter season, turn your soil about 10 inches, burying the spores helps remove them, and it also exposes snail eggs to die.

Preventive Foliar Mix that does wonders! 

Apply every 2 to 3 weeks, so new growth will be covered.  Wet under and over the leaves.  Per gallon add:

  • One dissolved regular strength aspirin
  • 1/4 Cup nonfat powdered milk
  • Heaping tablespoon baking soda
  • 1/2 Teaspoon mild liquid dish soap

Water your plants with an aspirin?!  Salicylic acid, in aspirin, triggers a defense response in tomatoes and other plants as well! Adapted from eHow:  The main benefit of aspirin in planting involves aspirin’s ability to fend off potential plant diseases.

  1. Purchase regular strength aspirin. The brand does not matter; purchase the cheapest brand that is available.
  2. Mix together one aspirin with one gallon of water. Combine the ingredients well, so that the aspirin is distributed evenly throughout the liquid.
  3. Add a dash of mild liquid soap to the mixture. This is used as a way to help the aspirin water stick better to the tomato plants. Once the soap is added, attach a spray nozzle to the gallon jug and it is ready to use.
  4. Spray the tomatoes when you first set them in the ground. Aspirin sprayed directly on seeds improves germination, on plants it stimulates the growing process. There is no need to soak the area. A light and gentle spray will suffice.
  5. Continue to spray the aspirin mixture on the tomato plants every 2 to 3 weeks. You are going to notice that the plants stay healthier and attract fewer insects.

Per a comment by Leroy Cheuvront at Heavy Petal blog:  I have had the blight and have stopped it from destroying my tomato plants. All you have to do is mix 2 ounces of bleach to a gallon of water and drown the plant from top to bottom, it will not kill the plant. I do it every seven days and the blight has not returned.  — June 18, 2010.  It sounds scary, but I bet it works! I would test this principle on ONE plant to be sure it is safe to use. Solarization  In the past ten years, some enterprising Israelis came up with solarizing. Moist soil is covered with transparent plastic film for four to six/eight weeks in the summer.  It takes that long to heat the soil to a temperature and depth that will kill harmful fungi, bacteria, nematodes, weeds, and certain insects in the soil. Solarization can be a useful soil disinfestation method in regions with full sun and high temperatures, but it is not effective where lower temperatures, clouds, or fog limit soil heating. Solarization stimulates the release of nutrients from organic matter present in the soil.

Solarization

Solarization also kills grass by heating up the soil when daily temperatures exceed 80°F. Weed eat or mow the area as short as possible. Moisten the soil and cover the area in clear plastic for 10-14 days, until the grass is dead.     Although cloudy weather will slow things down by cooling the soil under the film, a few weeks of sunshine will improve your soil dramatically, easily, and inexpensively. If you live in an area with cool or cloudy summers, or if you just don’t want to wait all season, you can speed up the process by adding a second sheet of plastic. Using the hoops commonly used to elevate row covers or bird netting, raise the second sheet of plastic over the ground-level sheet. The airspace between acts as a temperature buffer zone during cloudy weather and the combination of the two sheets of plastic serves to raise the soil temperature an additional 6 degrees.  The goal is to raise and maintain temperatures in the top 6 inches of soil to a level between 110 to 125 degrees F.  After several days of sunshine, soil temperatures rise to as high as 140 degrees at the surface and well over 100 degrees as far down as 18 inches. Do not mix untreated soil into the solarized bed And please, do NOT compost diseased tomatoes, or any other diseased plant.  That’s how you spread soil born fungi, let alone that they are also spread by wind, are airborne.  If your neighbor has a diseased plant, don’t be shy to respectfully and gently ask them to remove it.  Remember, they raised that child.  How hard was it for you to give up your plant?  Especially the first time.  See?  They may not even know about wilts.  Educate them if possible.  Tell them how you learned about it.  Offer to send them the link to this page. See also Biofumigation  Biofumigation is a sustainable strategy to manage soil-borne pathogens, nematodes, insects, and weeds. Initially it was defined as the pest suppressive action of decomposing Brassica tissues, but it was later expanded to include animal and plant residues.  Other Tomato Questions & Cures – Holes, spots, brown areas?  Here is an IPM (Integrated Pest Management) image page from UC Davis that is likely to answer your question!  It includes diseases and pests.  See more images at Colorado State U Extension. Marion Owen, Fearless Weeder for PlanTea, Inc. and Co-author of Chicken Soup for the Gardener’s Soul says ‘Keep your hands in the dirt, and your dreams on a star!’  I agree! To the fattest, bestest tomatoes ever!!!! Cerena

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