Cascading Petunias not growing

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Funpilot
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Cascading Petunias not growing

Only two of the seed pods germinated after 25 days.  The two that did look very healthy so long as I keep the covers on them.  Within two hours of removing them they look almost dead.   Aerogarden has sent me a replacement seed kit for my Bounty.  But I do not want to repeat my same experience. So, here are my questions?

FYI: I just replaced the water and added new fertilizer.  I have well water that I put through reverse osmosis filters that I use.  Water is basically the same as store bought water.

1. What am I doing wrong with the two growing plants that makes them die when I remove the cover?

2. My Aerogarden pump is constantly circulating water.  Is this correct?

3.  If I only put in two plants from the 9 they just sent me to see what happens, what is the shelf life on the remaining plants?

 

Any other observations are greatly appreciated.   Thanks

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Funpilot
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My two remaining petunia

My two remaining petunia plants are now growing rapidly.  I did change from my well water to store bought water and I think that helped a lot.  

Funpilot
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The hardening approach

The hardening approach appears to be working.  Thanks.  

Funpilot
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Thanks for the feedback.  I

Thanks for the feedback.  I just got off the phone with Customer Service and I was told the same thing on shelf life.  Your hardening idea was not something they said to me, so I am going to try it.  They think the problem is my water so I am off to find distilled water.  As for how long the water runs, I was told that in the germination periiod it runs one hour in every 12 hours, afterwards, it is on all the time.  So, it does not appear I have a poroblem with my pump.  

Ginger
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Sorry to hear that, Funpilot.

Sorry to hear that, Funpilot. First off, put the covers back on the two survivors, and harden them to dry air gradually, if they're being that finicky. They've been living at 100% humidity, and aren't coping with winter-dry air, probably. It's probably also cooler in the real world.

You could (after hardening) transplant out the two plants you have so far... Pot them up and put them on a sunny windowsill. Petunias are very slow to flower. I don't know where you live, so I don't know whether that works for growing them for outdoors later.

It differs wildly between species how long a seed is viable. Should be safe for a year. Might be good for three years. Probably not longer. I don't know petunia seeds that well. (I have grown them. They are very slow. :) )

 

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