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Hypertufa mix didn't set up...suggestions?

7 years ago

Can Hypertufa mix that didn't set be crumbled and reused in some way?

I used one part Portland cement to one and a half each peat and perilite.

Featured Answer

Mike Larkin

7 years ago

You may be able to crush it up to make a gravel mulch for your containers, esp if you are planting succulents. I would not remix into new Hypertufa mix if that is what you are asking.

If you explain your process maybe someone can help so that this does not happen again. Some things to include. Was the bag of Portland new ( never opened) ? How much water did you add? What did the mix look like before you put into the mold. Did you allow the the pot to properly cure ( remained damp for 2-3 weeks ). How cold is it where you live? ( night time temps)

this link may be of some help -My instructions for Hypertufa

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Comments (6)

Pam M
Original Author
7 years ago
Thanks for your response Mike. I imagine if I was to use it as gravel mulch I would have to soak/rinse it several times to make it safe for plants.

As to my process, all materials are newly purchased, I added only enough water to clump (no drips when squeezed) and I kept mold in plastic bag outside under cover for 2 weeks, checking daily for moisture (I live on Vancouver Island so lots of rain). Night time temps have been around 10 celsius.

Also, thank you for your link. You've made some beautiful pieces Mike!
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Mike Larkin
7 years ago
Sounds like you are doing the process correctly and if I am converting to Fahrenheit correctly it appears to be warm enough. Not sure what to tell you.

I have used 1/1/1 , and that ratio has been good for me. Consider adding a little more water, so that you get a few drips. As it gets colder, it may be best to wait till spring, anything below 50 F will impact the curing process.

Beautiful part of the country

Mike
Pam M thanked Mike Larkin
Pam M
Original Author
7 years ago
Thanks Mike, I will try a bit more water and yes, might have to put it off till spring.

Yup, I live in paradise! :)

Cheers
maggiepatty
7 years ago
Mike, thanks so much for that response and the link to your blog and instructions. My friend and I have been wanting to try hypertufa for a few years but have been afraid to. I think I will talk her into it now!
Pam M
Original Author
7 years ago
Make sure that your peat moss is bone dry, maggiepatty. I think that was a big part of my problem.

Pam

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