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help starting seeds in a hoop house

Posted by vschlaff 5 (My Page) on
Mon, Apr 12, 10 at 11:31

Hi everyone!!
we have just built our first hoop house. I'm trying to start seeds and I need to know If I'm doing it right.
I used cow pots, and got the seeds ready, but I'm not sure if it gets to cold inside at night for germination. our hoop house is not heating, I open the doors during the day for ventilation. It is getting to about 70 something inside during the day. Will they germinate during the day and be ok at night for the next month. I'm in michigan, zone 5.
do I need to cover the trays to make it dark all the time until they germinate? do I need to put a heater inside?

Follow-Up Postings:

RE: help starting seeds in a hoop house

What are you trying to start?

Germination temps vary by seed type.

Congrats on the new hoop house! Very fun : )


RE: help starting seeds in a hoop house

Hi Ginny - If you read through the FAQs here on how to grow from seed you'll find that soil temperature is what is vital to germination, not air temperatures. That is why the use of heat mats under your seedling trays is commonly recommended.

And soil temperatures in the 70-95 degree range (depends on the seed type) must be maintained until germination happens so the only way to do that is by using bottom heat sources like heat mats.

Once the seeds sprout, then it is time to worry about what the air temperatures are and yes, in your zone you may have to provide some heat on at least a few nights. Once the plants have sprouted we try very hard to keep the air temperatures between 45 for a low and 65-70 for a high.


Here is a link that might be useful: Growing from Seed FAQs

RE: help starting seeds in a hoop house

Thanks for the help. Im growing a little of everything to start my garden outside in may. I have about 7 trays. And no power outside unles we use a extenion cord. And again using 7 trays i think i would need to plug in would need to plug in 7 cords. Thx

RE: help starting seeds in a hoop house

Then why not just germinate them in the house where you can supply the heat and then move them to the hoop house once they are sprouted? That would be the easiest way to go since they are in trays.


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