Growing conditions forum: Lime and Hoya's

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Imageroyalpalmhoya
Nov 23, 2010 9:58 AM CST
Name: Regina James
Royal Palm Beach, Fl.
I've heard and read that some hoya's like a teaspoon of lime added to their soil mix like some of the Eriostemmas. Would that be true to all Eriostemmas?
Here's my list of "Stemmas" I"m concidering adding lime to their soil:

H. ariadra
H. cv. Black Star
H. cv. Girlie
H. cv. Gold Star
H. guppyi
H. lauterbachi
H. cv. Optimistic
H. cv. Ruthie

Hoya's that like lime in the soil:

H. imperialis
H. magnifica

Also how many of you add lime (I'm using a pellitized form) to your soil mixes, and to which Hoya's if you don't mind sharing and listing them.

Thanks for your time and input,

Regina
Flowers leave some of their fragrance in the hand that bestows them.
- Chinese proverb

ImageHoyaDoug
Nov 23, 2010 11:05 AM CST
Name: Doug
Lamoille County, VT
Hi Regina,

For what it is worth, I add a touch of powered limestone to my general Hoya potting mix, because I'm kind of afraid that the soil will acidify over time. I have sprinkled extra lime on the surface of some of the Eriostemmas and Hoyas that you mentioned, but have noticed no difference in growth or appearance. It did not seem to affect them for the better, but did no damage either.

Doug
Imagepropmaker
Nov 23, 2010 3:36 PM CST
Name: Dominic Murray
Lanzarote, Canary Islands

I use crushed egg shell on some...cant get lime here
AlohaHoya
Nov 24, 2010 4:42 PM CST
Name: Carol Noel
Hawaii (near Hilo)
It's all about choices.
I have heard that too. However, David Liddle once wrote me that he had never found a hoya growing outside a pH of 5.5-6.5...slightly acidic. I have a feeling they are highly adaptable. I do not add lime (dolomite) to any of my hoyas and they thrive.
Leap. The net will appear.
Imageroyalpalmhoya
Nov 24, 2010 9:38 PM CST
Name: Regina James
Royal Palm Beach, Fl.
Thanks everyone for your thoughts. I understand the pellatized lime also adds calcium and magnesium to the soil as well as neutralizing acidic soil.

Dom....I have like you used crushed egg shells too, or after empting the milk jug filled it with water and used that to water my plants with as well.

Carol......I agree they are highly adaptable, just hoping to make a few of the more difficult ones happier and want to bloom.
Flowers leave some of their fragrance in the hand that bestows them.
- Chinese proverb

AlohaHoya
Nov 25, 2010 12:19 PM CST
Name: Carol Noel
Hawaii (near Hilo)
It's all about choices.
Essentially, lime IS calcium but it is very difficult for plants to access it as it is bound up very tightly. Magnesium is needed for the absorbsion to be easier. I use it alot when wanting an alkaline condition (Dolomite or dolomitic limestone)...
Leap. The net will appear.
songkranupa
Nov 27, 2010 2:34 AM CST
Hi Regina and Carol,
I want to know " How to add Magnesium in the soil?".

Songkran
[Last edited Nov 27, 2010 2:35 AM CST]
Quote | Post #494533 (7)
Dee2
Nov 27, 2010 6:15 PM CST
Name: Dee Enslow
Chipley, FL (panhandle)
Also, crushed oyster shell does the same thing. Plenitful here.

Dee
Imageroyalpalmhoya
Nov 27, 2010 8:53 PM CST
Name: Regina James
Royal Palm Beach, Fl.
Songkran.....I would do a soil test first to determine if magnesium was needed. If so, dolomitic lime can be used to increase calcium and magnesium. Dolomite rock contains at least 6 percent Magnesium oxide.

Dee.....You would think I could find crushed oyster shell here, but no. Same holds true for pine bark fines.




Flowers leave some of their fragrance in the hand that bestows them.
- Chinese proverb

songkranupa
Nov 28, 2010 10:23 AM CST
Thank you very much Regina.

Songkran
AlohaHoya
Nov 28, 2010 2:14 PM CST
Name: Carol Noel
Hawaii (near Hilo)
It's all about choices.
Dee...the crushed oyster shells, coral lumps, egg shells are a form of calcium (carbonate?) and have no magnesium...
Leap. The net will appear.

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