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Showing results 1 to 25 of 59
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Search: Posts Made By: jmrathbun
Forum: Growing Under Lights 10-11-2019, 06:13 PM
Replies: 2
Views: 103
Posted By jmrathbun
HID 400W Distance Advice

It will soon be time for me to move my collection indoors for the winter. I have a 400 W Warm Deluxe HID bulb that I can adjust from three to five feet above the plant table. I usually put my Blc...
Forum: Advanced Discussion 05-19-2019, 09:13 AM
Replies: 12
Views: 1,828
Posted By jmrathbun
To continue the above helpful discussion, a...

To continue the above helpful discussion, a particularly stark divide has emerged in a group of Phals that I purchased nearly three years ago. Some were in moss and some in bark. Three got repotted,...
Forum: Advanced Discussion 04-25-2019, 07:08 AM
Replies: 3
Views: 1,316
Posted By jmrathbun
Propane Heater Causing Bud Blast?

A friend tells me he sees a lot of bud blast on his phals, especially in the winter months. The room has an unvented propane fireplace with a slight chemical odor when he first lights it. Could toxic...
Forum: Advanced Discussion 03-11-2019, 08:58 PM
Replies: 9
Views: 1,638
Posted By jmrathbun
Follow-on

Since I last posted here, I've been using 1 tsp of MSU-RO formula in a gallon of water weekly. Mos of my Phals get an additional weekly watering without additives, but the Catts seem happy with...
Forum: Cattleya Alliance 12-14-2018, 08:03 PM
Replies: 1
Views: 664
Posted By jmrathbun
Cattlianthe Basics

I was interested in the December Orchids article on Cattlianthe hybrids (begins on page 920). I also noticed, in the same issue, several Rhynocattlianthe hybrids got awards recently.

I've had good...
Forum: Identification Forum 08-28-2018, 10:51 AM
Replies: 2
Views: 847
Posted By jmrathbun
Moleyarrow?

This mysterious plant is shown growing in fields and marshy areas throughout a rather sophisticated computer game called The Witcher. Most of the plant and bird species shown in the game are...
Forum: Pests & Diseases 04-19-2018, 05:01 PM
Replies: 2
Views: 463
Posted By jmrathbun
Catt-astrophe

Below is my Blc Ronald Hausermann 'Carl' AM/AOS, purchased in bloom in 2015 and bloomed again in 2017 with two spikes, one of which had four perfect blossoms. This year, despite abundant root and...
Forum: Advanced Discussion 01-26-2018, 11:00 AM
Replies: 15
Views: 1,629
Posted By jmrathbun
I was very interested in the K-Lite idea, which I...

I was very interested in the K-Lite idea, which I read about a couple of years ago in Orchids. I wasn't very happy with the outcome: my spikes seemed stunted compared to before and after. It may be...
Forum: Advanced Discussion 01-25-2018, 08:37 PM
Replies: 15
Views: 1,629
Posted By jmrathbun
And the winner is...

The new bag of MSU-RO from Jim's Orchid Supplies in Ft Pierce, Fl, appears much more homogeneous than what I had before. It has exactly the same analysis and ingredients as posted above, just finer...
Forum: Advanced Discussion 01-25-2018, 12:10 PM
Replies: 15
Views: 1,629
Posted By jmrathbun
Thanks! I did some more research and found that...

Thanks! I did some more research and found that available formulations of the MSO-RO vary in how finely the particles are milled, with one source asserting that the finer-milled products are less...
Forum: Advanced Discussion 01-17-2018, 09:20 AM
Replies: 15
Views: 1,629
Posted By jmrathbun
Thanks for info!

Thanks for info!
Forum: Advanced Discussion 01-16-2018, 09:15 AM
Replies: 15
Views: 1,629
Posted By jmrathbun
I guess if it's only calcium species, which is...

I guess if it's only calcium species, which is certainly what it looks like, I won't miss it since I'm using mostly Orchiata which is calcium heavy to begin with. I don't have a convenient two-gallon...
Forum: Advanced Discussion 01-16-2018, 06:04 AM
Replies: 15
Views: 1,629
Posted By jmrathbun
Battle of the Experts

Now I'm REALLY confused! Please see previous discussion:
Fertilizer In Solution vs Dry Mix (http://www.orchidboard.com/community/advanced-discussion/90758-fertilizer-solution-vs-dry-mix.html)
Forum: Advanced Discussion 01-15-2018, 01:50 PM
Replies: 15
Views: 1,629
Posted By jmrathbun
Acidic MSU-RO Solution Precipitates

Following recommendations from this forum, I recently mixed a pound of MSU-RO fertilizer with a gallon of RO water (pH 6.8) and got a very intensely green solution with a pH of 3.5 and about 5 mm of...
Forum: Advanced Discussion 01-15-2018, 01:32 PM
Replies: 32
Views: 6,584
Posted By jmrathbun
Asheville Orchid Festival

Since you're so close, you don't want to miss Asheville's annual orchid festival this March 24 and 25 at the North Carolina Arboretum. They normally have exhibitors from all over the SE and numerous...
Forum: Cypripedium Alliance - Paphiopedilum 10-15-2017, 05:11 PM
Replies: 1
Views: 1,069
Posted By jmrathbun
Paph Rooting Question

Arboreal orchids I know of seem happy in clear plastic pots because their roots are adapted to open-air living. Is the same true for Paphs and other terrestrials, or would their roots be happier in...
Forum: Advanced Discussion 10-15-2017, 09:45 AM
Replies: 17
Views: 2,145
Posted By jmrathbun
I don't see any indication of ongoing...

I don't see any indication of ongoing fermentation or other chemical reactions in the clear glass jug I'm using to hold the KelpMax diluted with RO water. That leaves a welter of possibilities that...
Forum: Advanced Discussion 10-13-2017, 03:01 PM
Replies: 17
Views: 2,145
Posted By jmrathbun
It's not cheap but it was prompt: ordered two...

It's not cheap but it was prompt: ordered two days ago and here it is.

Is this stuff prone to fermentation? I mixed up a gallon with some RO water that was cool room temperature and within minutes...
Forum: Advanced Discussion 10-10-2017, 11:45 AM
Replies: 17
Views: 2,145
Posted By jmrathbun
Rooting Hormones

I have a paph that has lost its roots though the leaves remain green and turgid. I've had it out of the pot for the past two weeks, hoping it would regrow some roots. Is there any sort of hormone or...
Forum: Advanced Discussion 08-30-2017, 03:36 PM
Replies: 12
Views: 1,828
Posted By jmrathbun
water

You may be correct. I'll try more water and see what happens. I've always been afraid of overwatering; it seems the symptoms are very similar...
Forum: Advanced Discussion 08-30-2017, 01:19 PM
Replies: 12
Views: 1,828
Posted By jmrathbun
Details

Instead of flourishing -- getting bigger every year -- many of my plants are regressing -- fewer and smaller spikes, fewer healthy roots, leaves withering and pseudobulbs drying.
Forum: Advanced Discussion 08-30-2017, 09:34 AM
Replies: 12
Views: 1,828
Posted By jmrathbun
Too Much Calcium?

I've had a lot of poor results in recent years when I repot from moss to Orchiata. My problem is just "failure to thrive". I use some crushed limestone in the bottom of well-drained plastic pots and...
Forum: Identification Forum 04-20-2017, 08:31 PM
Replies: 1
Views: 519
Posted By jmrathbun
P Sogo Champion x Leopard Prince?

A friend gave this to me a few years ago. The grower tentatively identified it as P Sogo Champion x Leopard Prince. It doesn't look much like any picture I can find of that grex, but it also had a...
Forum: Advanced Discussion 06-20-2016, 12:13 PM
Replies: 9
Views: 1,638
Posted By jmrathbun
It's been a LONG time since I did much actual...

It's been a LONG time since I did much actual chemistry, so I needed considerable work to check Ray's calculations as they might apply to my situation. I'll show my results in case anybody wants to...
Forum: Advanced Discussion 06-19-2016, 03:23 PM
Replies: 9
Views: 1,638
Posted By jmrathbun
Maybe I just need to agitate the mix before...

Maybe I just need to agitate the mix before dipping, but the different-sized particles sure look to my chemist's eye like different components of the mix.
Showing results 1 to 25 of 59

 
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