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 Post subject: Hippeastrum trentino
PostPosted: Sat Mar 13, 2010 2:39 am 
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Joined: Tue Mar 09, 2010 1:00 am
Posts: 47
Location: South Africa
I read the recent topic by LindS regarding the 5 flowers on a scape. It is a regular phenomenon by a number of the larger Hippeastrum bulbs to reward us with more than one scape and more than the regular 4 flowers.

This two Hippeastrum trentino bulbs only measures about 50mm across and produced 2 scapes each with one scape producing 7 flowers in the second photo
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Another small 50mm bulb of Hippeastrum green dragon produced 3 scapes with between 4 and 7 flowers each
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Heinie
Cape Town
South Africa


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 Post subject: Re: Hippeastrum trentino
PostPosted: Sat Mar 13, 2010 2:16 pm 
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Joined: Wed Feb 08, 2006 6:02 pm
Posts: 1630
Location: PNW
Very nice!


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 Post subject: Re: Hippeastrum trentino
PostPosted: Sat Mar 13, 2010 8:29 pm 
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Joined: Fri Feb 26, 2010 7:50 pm
Posts: 57
Location: SE Michigan
Gorgeous photos, Heinie! Thanks especially for the close-ups.

I had seen two or three scapes from a single bulb before, but had never seen more or less than four flowers per. I guess I thought the four-flower pattern was genetic standard, I was really surprised by five. But seven!!

Even after the flowering show from mine this spring, I'm looking forward to watching the leaf patterns in the developing side bulbs, and watch the division of the side bulbs gradually happen.

I understand that people can get really 'hooked' on these plants.... I think I'm in trouble :lol:

A couple of beginner questions - In past years, I have put Amaryllis in an area that is somewhat sunny in the morning, and then medium shade after, casually added some standard houseplant fertilizer at the beginning of summer, and ignored it until time to take the bulb to dormancy.

First, I would like to feed this one better.... Is a standard houseplant fertilizer sufficient, or does Amaryllis do better with a different fertilizing formula?

Second, I have always grown out the bulb in an 8" terra cotta pot, and then replanted the bulb in fresh soil in the same pot. Especially with the two side-bulbs developing, should I pot this up a size, or two, after flowering? I want to give it enough grow-room, but I don't want to overpot it either.

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To find your roots, get your hands in soil. To live fully in the present, imagine your garden and make it happen. To see all of reality, spend some time sitting quietly in the garden.... Then get your hands back in the dirt.


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 Post subject: Re: Hippeastrum trentino
PostPosted: Sun Mar 14, 2010 3:11 am 
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Joined: Tue Mar 09, 2010 1:00 am
Posts: 47
Location: South Africa
Linda,
I am no specialist with growing Hippeastrums but I follow a procedure that I developed over the years for what they seem to like in the way of position, pot size, growing medium and fertilizer. Here is what I do whether it is correct but it works for me and I am happy with the results.

When the scapes start appearing I take them out of the cooler "storage" environment and place them where it will get full morning sun until about 13:00 and then they still have high light conditions for the rest of the day.

I mostly select a pot size where I can fit 2 to 3 fingers between the pot rim and the bulb. The reason is that I would like to leave sufficient room for offsets because I do not re-pot my bulbs too often. The two bulbs from the photos above are planted in 14cm pots. That is almost 6 inches so I would advise that you continue with your 8 inch pots because the bulbs are probably larger than 50mm or 2 inches.

I use a very well draining growing medium for 90% of my various bulbs in my collection. The medium is made up of coarse sifted grid with a size between 1.2 and 1.6mm, compost and pine bark. I work on the principle that if I pour a measured amount of water over the medium I would like to see at least 75% to drain out the bottom. I have measured this to a fine art already so I know that a 20cm pot will receive 250ml water and very little will be wasted out the bottom. I make use of a portable five litre fertigater, made in the USA, with a rose nozzle on the front of the garden hose. I water the hippeastrum bulbs about every 5 or 6 days.

The fertilizer that I use is Phostrogen N14:P10:K27 with micro elements added. I use this fertilizer for all my bulbs and add half strength to the water each time I water my bulbs.

I have a couple of pots of specimen Hippeastrum plants where I planted 3 bulbs in very large pots and they have not been disturbed for about 5 to 7 years. Here are some photos.

This is Alfresco. I planted two bulbs in a 25cm pot about 5 years ago and there are now 3 flowering size bulbs and about 6 baby bulbs.
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This two 32cm pots have not been disturbed for 6 years
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Regards

Heinie
Cape Town
South Africa


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 Post subject: Re: Hippeastrum trentino
PostPosted: Sun Mar 14, 2010 6:45 pm 
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Joined: Fri Feb 26, 2010 7:50 pm
Posts: 57
Location: SE Michigan
You may not be a 'specialist', but your results speak loudly on your behalf :)

Roughly, para, by para,

More sun. Got it. Having seen them here only as seasonal 'houseplants', I have been overcautious with sun exposure. I'll 'harden it off' re sun, but will place it better, and get it a lot more light, and later shift it as it wants.

Re pot size, this was roughly a 4 1/2 to 5" diameter bulb (not unusual for the variety, but they have always been 2-3 scape, 4 flower per scape, bulbs). I've now got roughly two fingers of space between the below-soil max of the bulb and the pot... and I have pretty skinny fingers. I will pot it up a size with a well-draining mix before I set it outside, and then check how it's doing in a couple of months, and see how the offsets are developing. May very gently pot it up once more.

Thanks for the NPK parameters on the feeding mix you are using. And I will use diluted feeding on a *much* more regular basis than once in the spring.

And even more beautiful photos.... Yeah, I'm hooked :

Thanks!

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To find your roots, get your hands in soil. To live fully in the present, imagine your garden and make it happen. To see all of reality, spend some time sitting quietly in the garden.... Then get your hands back in the dirt.


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