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How to grow tomatoes in greenhouse
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Posted by phxplantaddict 9 (My Page) on Thu, Nov 24, 11 at 23:29
| Im in Phx and finishing my greenhouse this week. Will be heated in the winter and was wondering if anyone here has any experience growing tomatoes in a greenhouse. I would like to try heirlooms and other unusal types. The greenhouse will have some humidity as I am growing tropicals such as cinnamon, coffee, jackfruit and the like. I would like to know how to grow tomatoes in that climate. Thank you in advance. |
Follow-Up Postings:
RE: How to grow tomatoes in greenhouse
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| They're very easy to grow if you have good ventilation, a huge pot and no insect pests. Every time my greenhouse tomatoes set fruit, the white-fly and spider mites would suddenly appear. They attacked and ruined the vines. |
RE: How to grow tomatoes in greenhouse
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| The other issue you will face growing veggies out of season is that the seeds are genetically set to germinate and grow when the days are a certain number of hours long and when temps in the soil are maintained at a particular level. The seeds seem to know when the time is right for them to grow, bloom, and set fruit. They will still grow in a GH, but they do so much better in their proper season. To grow them in the GH look for plants that don't get so large and don't require so much soil to grow in. You'll have to have a system to keep the soil warm in order for the plants to flourish. My brother lives in Florida and he grows his hydroponically in the GH and they seem to do pretty well without any soil at all. It requires constantly moving water and that takes a motor that runs all the time and can be expensive. A solar powered generator would work for minimal cost. If you don't succeed the first try, just don't give up. If you do I hope you will post pics of your harvest because I'd love to see them. Cheryl |
RE: How to grow tomatoes in greenhouse
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| Tomatoes are day-neutral. |
RE: How to grow tomatoes in greenhouse
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| Mine have nice set of fruit at the moment. The issue i have in an unheated and unpowered GH is humidity. Some type of mold/blight always whacks them as the temps stay in the 30's outside, it literally starts to rain inside. In a heated GH, you should have no issues if you follow normal ventilation standards. Enjoy! |
RE: How to grow tomatoes in greenhouse
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| Poppa, the mold might not be so bad if you keep a fan going in there all the time. Even if you have to run an extension cord out there from your house. Good air circulation depends on movement not just venting. Cheryl |
RE: How to grow tomatoes in greenhouse
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| Is there a temp that they stop growing? I have heaters built in on thermostats but do not know what to set them at |
RE: How to grow tomatoes in greenhouse
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| Optimal growing temperatures for tomato after transplanting are 65 deg. F in the night and 80 deg. F in the day. These temperatures will produce the highest yields. Night temps. below 55 deg. slow growth and production. Chilling injury temperatures depend on the length of time the plants are exposed, but are generally between 50-41 deg. F. |
RE: How to grow tomatoes in greenhouse
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| I recall from the time I grew toms in my GH that 16 hours of light was ideal for toms. Cuestaroble, maybe you can confirm that. |
RE: How to grow tomatoes in greenhouse
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stressbaby,
You are correct. Optimum production requires about 16 hours of light. Once you get to only 8 hours (50% of optimum) the yields,in general,are reduced by about 50%. |
Here is a link that might be useful: greenhouse tomato light requirement
RE: How to grow tomatoes in greenhouse
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| can they be grown yr round in zone 6 with adequate heat and light |
RE: How to grow tomatoes in greenhouse
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| I used to grow commercial greenhouse tomatoes if it gets to humid you are asking for bight or moldI still grow in small houses 20x24 and start in Feb here in maine I lug them back and forth to the house to save on heat I start out with vey small containers and then to half dollar sized and finally to 4 inch by that time you usually can leave them in the greenhouse with maybe a little heat Daconil is a great spray for fungusI found out Wipe your feet before going in and keep traffic at a minumin |
RE: How to grow tomatoes in greenhouse
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| how about starting after summer totmatoes are gone say about oct and having tomatoes to eat in the winter |
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