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Messages - Arnold

#166
We have 8 F right now outside.  Greenhouse temps holding at 42 F.
#167
Good news Mike Thanks for the update.
#168
Current Photographs / Re: December photos 2022
December 23, 2022, 09:52:44 AM
Othonna cakilefolia 


Flowers not yet fully developed
#169
We are predicted to reach 12 F this evening.
#170
General Discussion / Re: Hippeastrum fever
December 23, 2022, 06:04:55 AM
Hi Angelika

Welcome to the Hippeastrum fever club.

The Barnhoorn family has been in the bulb and Hippeastrum family for many years.  Back in the days of the International Bulb Society we had contact with them.

Their company is know as Hadeco now and I believe they sell Hippeastrum bulbs in Europe.

See here: https://www.hadecobulbs.com/

Here is the South Africa site:  https://www.hadeco.co.za/

There are number of Facebook pages devoted to Hippeastrum and I cna tell you there are some serious growers.
We alos have a book published by the PBS on the Hippeastrum of Bolivia.

Martin has a supply, if you interested.

Regards and Merry Christmas

 
#171
General Discussion / Re: Trying a few root crops
December 21, 2022, 11:02:41 AM
Went to an International Market today and for the first paid attention to some of the tubers for sale.

They have produce and groceries from all over the world.
#172
Current Photographs / Re: December photos 2022
December 19, 2022, 12:15:22 PM

Daubenya zeyheri.

This may be an unusual one.  Leaves wit ha central mid leaf white strip.

Had a look at Bothalia Vol. 32.2 from Oct 2022  "Systematics of the genus Daubenya (Hyacinthaceae: Massonieae)  and the descriptions do not  state any    have a   mid leaf white strip.
#173
Current Photographs / Re: December photos 2022
December 19, 2022, 12:05:20 PM
Massonia bredasdorpensis  Two year old seedlings.
#174
Current Photographs / Re: December photos 2022
December 18, 2022, 04:58:14 AM
 
What have you added, over what sort of area? Reflectors/shades?

--I've added two four tube LED fixtures each about 15-18 inches above the plants.  The come on at 7 AM and turn off at 5 PM.  They are suspended from the greenhouse supports.

In reality, approaching natural maximum light levels would be almost impossible - cramming enough lamps in would be impossible. Ignoring the costs.........

--The cost of LED's has been minimal for me here in Northeast USA. I think the up front cost for LEDs is more than other systems but the operating costs are less. The idea was  to add a bit more light energy to the plants.  It's worked out well for the Ferraria's as they have started flowering consistently
 
#175
Current Photographs / Re: December photos 2022
December 14, 2022, 10:59:02 AM
Here are four locations as compared to Capetown SA.

You have to subtract 6 months to get the same growing season.
#176
Current Photographs / Re: December photos 2022
December 14, 2022, 10:52:35 AM
I think it's brightness.  I'll dig up some charts I've done comparing the 'insolation' of SA with the northern hemisphere.  We get far less light energy falling on the ground than SA.  Also the number of cloudy days can play into the overall light.
#177
Current Photographs / Re: December photos 2022
December 14, 2022, 07:38:06 AM
Yes, they sit in a greenhouse heated to around 42-45 F.

The key in my view was the  addition supplementary light I added couple of years ago.  Our light levels here in the northeast USA are just not bright enough to get these to flower reliably.

#178
Current Photographs / Re: December photos 2022
December 13, 2022, 12:50:30 PM
First Ferraria of the season. Last year blooms on Dec. 17.
#179
Current Photographs / Re: Worsleya
December 08, 2022, 07:07:27 PM
I guess three cheers for David, figuring out how to do that.
#180
Current Photographs / Re: Worsleya
December 08, 2022, 02:32:55 PM
Great work Ken,

Lets have a three cheers for Ken in NJ