Plumeria forum: Pumice vs Perlite

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Name: Glenn Graham
Memphis (Zone 7b)
Plumerias
BBQNBLUES
Aug 16, 2018 3:19 PM CST
Just ordered 45# of 3/16" Pumice from http://www.generalpumiceproduc...

Unable to find locally & "WANT" to believe Pumice is better than Perlite in my Plumeria potting mixes... If for no other reason, it _won't float to the surface... Plus help weigh down my 10 gallon squat pots from wind damage..

Do you think I'll need to add sand to the mix too? I'm mixing up a 100 gallon batch using Miracle Grow Cactus mix as the base..


getting ready for the Spring 2019 repot-a-thon Rolling my eyes.


Name: Karen
NM (Zone 7b)
Region: New Mexico Region: Arizona Cactus and Succulents Greenhouse Sempervivums Bromeliad
Adeniums Garden Ideas: Level 1 Tropicals Xeriscape Garden Art Plumerias
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plantmanager
Aug 16, 2018 3:28 PM CST
I'd say no sand, Glenn. I like pumice better than perlite too, for the same reasons. I also object to the bright white of perlite. Finding pumice is tough. How was the shipping on it?
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Name: Glenn Graham
Memphis (Zone 7b)
Plumerias
BBQNBLUES
Aug 16, 2018 3:42 PM CST
plantmanager said:How was the shipping on it?


FREE Shipping :)

Name: Karen
NM (Zone 7b)
Region: New Mexico Region: Arizona Cactus and Succulents Greenhouse Sempervivums Bromeliad
Adeniums Garden Ideas: Level 1 Tropicals Xeriscape Garden Art Plumerias
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plantmanager
Aug 16, 2018 3:45 PM CST
Wow, I've never found a place like that. Thanks!
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Name: tarev
San Joaquin County, CA (Zone 9b)
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tarev
Aug 17, 2018 12:48 PM CST
I agree with Karen, I also prefer pumice much more than perlite. And, no to sand as well. nodding

That is a good source of pumice! Thanks for the link Glenn!
Name: Cheryl
Texas (Zone 9a)
Region: Texas Greenhouse Plant Identifier Plant Lover: Loves 'em all! Plumerias Ponds
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ShadyGreenThumb
Aug 19, 2018 10:39 AM CST
Thanks for this! I love the idea of adding weight to a pot as my taller pots blow over on occasion. Not fond of the way perlite just never disappears, washing away from pot surfaces, floating here and there. Can you give a gal a clue and tell me approx what 15# of pumice looks like say, compared to a bag of 40# fertilizer? I buy giant bags of perlite at HD and go through 2-3 a year.
Life is short, Break the rules, Forgive quickly, Kiss slowly, Love Truly, Laugh
uncontrollably, And never regret anything that made you Smile.
Name: Glenn Graham
Memphis (Zone 7b)
Plumerias
BBQNBLUES
Aug 19, 2018 11:29 AM CST
ShadyGreenThumb said:Can you give a gal a clue and tell me approx what 15# of pumice looks like say, compared to a bag of 40# fertilizer?


From their website, it looks to be around 3 gallons... since it fits in a USPS Priority Mail Flat Rate shipping box.
[Last edited by BBQNBLUES - Aug 19, 2018 11:31 AM (+)]
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Name: Glenn Graham
Memphis (Zone 7b)
Plumerias
BBQNBLUES
Aug 25, 2018 5:46 PM CST
Just purchased a #24 bag of Lava from Hawaii Smiling since they have a surplus at the moment.

https://www.amazon.com/gp/prod...

I know, I'm going overboard on this Plumeria Mix... but I want my Plumerias to do the Hula. nodding

This will be added to the #45 of Pumice & 50 bags of Miraclegro Cactus Mix for my 10 - Ten Gallon pots.
[Last edited by BBQNBLUES - Oct 6, 2018 8:23 AM (+)]
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Name: tarev
San Joaquin County, CA (Zone 9b)
Always count your blessings in life
Cat Lover Houseplants Plays in the sandbox Region: California Orchids Plant Lover: Loves 'em all!
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tarev
Aug 26, 2018 11:33 AM CST
Looks good Glenn!

I always have to stake my Plumies here, we also get quite windy at times. Do update us how your Plumies go next growing season!
Name: Cheryl
Texas (Zone 9a)
Region: Texas Greenhouse Plant Identifier Plant Lover: Loves 'em all! Plumerias Ponds
Foliage Fan Enjoys or suffers hot summers Tropicals Garden Ideas: Master Level Garden Sages Million Pollinator Garden Challenge
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ShadyGreenThumb
Aug 26, 2018 8:06 PM CST
I stake leaning branches, as well. How do you stake them in such porous soil?
Life is short, Break the rules, Forgive quickly, Kiss slowly, Love Truly, Laugh
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Name: kbuntu
Puerto Vallarta, Mexico (Zone 13a)
Plumerias Region: Mexico
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kbuntu
Sep 20, 2018 7:30 AM CST
Composted Soil with Coco Coir and 50% Pumice. Your roots will thank you. I use it for all my container plumerias and they do excellent. Water runs out almost instantly.
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Name: Glenn Graham
Memphis (Zone 7b)
Plumerias
BBQNBLUES
Oct 6, 2018 8:30 AM CST
ShadyGreenThumb said:I stake leaning branches, as well. How do you stake them in such porous soil?


I've used Bamboo stakes, but they're kinda flimsy.. Ordered these: https://www.homedepot.com/p/Vi...

Impressed with the Sturdy Viagrow metal stakes...

[Last edited by BBQNBLUES - Oct 6, 2018 8:31 AM (+)]
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Name: Cheryl
Texas (Zone 9a)
Region: Texas Greenhouse Plant Identifier Plant Lover: Loves 'em all! Plumerias Ponds
Foliage Fan Enjoys or suffers hot summers Tropicals Garden Ideas: Master Level Garden Sages Million Pollinator Garden Challenge
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ShadyGreenThumb
Oct 6, 2018 2:42 PM CST
I like those stakes, too @BBQNBLUES. I have some bamboo from my GF's trees. They work because I can get stakes 12 f tall for some of those lanky limbs. But in the porous soil, it your stakes stay put?
Life is short, Break the rules, Forgive quickly, Kiss slowly, Love Truly, Laugh
uncontrollably, And never regret anything that made you Smile.
Florida (Zone 9a)
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Gina1960
Oct 23, 2018 7:32 PM CST
I have never used pumice. I actually prefer to use packing peanuts. I use the packing peanuts I get from mail order stuff in place of Perlite. I use it in the lower layers of the potting mix. I 'restart' a lot of rootless rhizomes of gingers and heliconias, and in the cooler parts of the year it is extra important not to have the soil retain water so rhizomes don't rot. I have used a mix of 1/3 peat moss, 1/3 orchid bark and 1/3 Jungle Growth (tm) potting mix with the extra addition of packing peanuts for years. It never fails me. I root plumeria in it too
Happy to consider trading plants, but ONLY with other people who also live in FLORIDA
Name: Hetty
Sunny Naples, Florida (Zone 10a)
Plumerias Photo Contest Winner: 2015 Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level Plant Database Moderator
Forum moderator Region: Florida Cat Lover Garden Sages Cactus and Succulents Tropicals
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Dutchlady1
Oct 27, 2018 7:20 AM CST

Moderator

I've used packing peanuts in pots before but I always regret it when it comes time to repot.....
Name: Cheryl
Texas (Zone 9a)
Region: Texas Greenhouse Plant Identifier Plant Lover: Loves 'em all! Plumerias Ponds
Foliage Fan Enjoys or suffers hot summers Tropicals Garden Ideas: Master Level Garden Sages Million Pollinator Garden Challenge
Image
ShadyGreenThumb
Oct 27, 2018 4:38 PM CST
Ditto that, Hetty. Packing peanuts don't decompose but roots wrap around them and make it impossible to untangle. But in a large pot, it sure keeps it lightweight.
Life is short, Break the rules, Forgive quickly, Kiss slowly, Love Truly, Laugh
uncontrollably, And never regret anything that made you Smile.
Florida (Zone 9a)
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Gina1960
Oct 28, 2018 7:05 AM CST
For my own purposes, I actually do not WANT them to decompose. Its a good thing for me when the roots wrap around them and go through them. They fulfill a really necessary purpose for the particular plants that I grow of creating larger air spaces the keep the soil from compacting around the roots and getting to boggy over time, which can cause root rot in containerized plants of these types. The alternative would be to use a like amount of hard nut shells (growers in Australia favor macadamia nut shells) but I do not have a source for obtaining those in high quantity. The use of orchid bark with the chunks of charcoal and LARGE perlite pieces is almost as good but costs a lot more, and the use of old wine corks is also beneficial. The best things I ever found was to use the little expanded clay pieces that are used a lot for orchids, but these get expensive and if you are looking to lighten up pots, they will not do that. But they do have the advantage of absorbing water and slowly re-releasing it.
Happy to consider trading plants, but ONLY with other people who also live in FLORIDA
Name: Hetty
Sunny Naples, Florida (Zone 10a)
Plumerias Photo Contest Winner: 2015 Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level Plant Database Moderator
Forum moderator Region: Florida Cat Lover Garden Sages Cactus and Succulents Tropicals
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Dutchlady1
Oct 29, 2018 6:56 PM CST

Moderator

I sometimes use LARGE chunks of styrofoam when I have a big pot and I want to avoid it becoming too heavy.
Name: kbuntu
Puerto Vallarta, Mexico (Zone 13a)
Plumerias Region: Mexico
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kbuntu
Oct 31, 2018 12:33 PM CST
Has anybody used large oyster shells? I have access to sacks and sacks of these for free.
Florida (Zone 9a)
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Gina1960
Oct 31, 2018 7:54 PM CST
I am not sure that oyster shells would be good long term, they might leach too much calcium into the soil
Happy to consider trading plants, but ONLY with other people who also live in FLORIDA

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