Amorphophallus titanum care and acquisition

Paul Licht
Sat, 05 Sep 2009 07:39:41 PDT
Albert's advice on the care of the titan arum are good but I would like 
to point out that there is some controversy. Here at Berkeley, we always 
keep large dormant tubers bone dry but in an otherwise moist greenhouse 
(in the back of our Tropical House). However, I know of several other 
people who insist on light watering, every week or two. In the past 
year, we have been growing the titan seedlings for sale and when a few 
went dormant, I kept them warm and wet and discovered that they started 
resprouting in a few weeks. At 1.5yrs, some have already produced 3 
leaves, each larger, (usually simultaneously) and tubers have grown to 
30-50cm (I haven't even measured those on the largest plants). A few 
other things I've learned is that these growing plants can be easily 
repotted during even vigorous growth without any setup. I am now potting 
up as soon as I see roots coming out of the pots (mostly 1 gal); some 
plants have reached  1.5 -2ft (all planted spring 2008). Be sure to use 
a VERY well draining mix (we use lots of pumice) in a standard coir 
potting mix.

If anyone graves titan, please let us know. I think we can supply much 
cheaper than on ebay.

Paul Licht, Director
Univ. California Botanical Garden
200 Centennial Drive
Berkeley, CA 94720
(510)-643-8999 wrote:
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>    1. Re: Mystery Irid (Tom Mitchell)
>    2. Re: Pacific Coast lily species (
>    3. off topic, Ruellia question (Dennis Kramb)
>    4. Pacific Coast lily seeds (Kathleen Sayce)
>    5. bulb growing (anthony matthews)
>    6. Re: bulb growing (Pacific Rim)
>    7. Re: Cryptostephanus blooming now? (Lee Poulsen)
>    8. Re: bulb growing (anthony matthews)
>    9. Re: bulb growing (Diane Whitehead)
>   10. Amorphophallus titanum (Myke Ashley-Cooper)
>   11. Re: Amorphophallus titanum (Albert Huntington)
>   12. Re: Amorphophallus titanum (Myke Ashley-Cooper)
>   13. Re: off topic, Ruellia question (Jim McKenney)
> ----------------------------------------------------------------------
> Message: 1
> Date: Fri, 4 Sep 2009 19:00:14 +0100
> From: Tom Mitchell <>
> Subject: Re: [pbs] Mystery Irid
> To:
> Message-ID:
> 	<>
> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
> As several others have suggested, I agree that the plant is a  
> Crocosmia. It looks like a form of C. aurea or C. masoniorum or  
> perhaps a cross between the two, of which there are several good  
> examples, e.g. 'Comet'. the book to consult is Crocosmia and  
> Chasmanthe by Goldblatt, Manning and Dunlop. Gary Dunlop owns  
> Ballyrogan Nurseries in Northern Ireland and probably knows more  
> about this genus in cultivation than anyone. His email address (which  
> isn't a State secret, since you can readily find it via Google) is  
>[at] He may be able to put a name on it for  
> you.
> ------------------------------
> Message: 2
> Date: Fri, 4 Sep 2009 11:55:16 -0700
> From:
> Subject: Re: [pbs] Pacific Coast lily species
> To: Pacific Bulb Society <>
> Message-ID: <4AA10024.21493.2AF0510@localhost>
> Content-Type: text/plain; charset=US-ASCII
> On 3 Sep 2009, at 19:35, wrote:
>> Could anyone suggest an individual or nursery ... able and willing to
>> supply ... seed or bulbs of three different wild origin provenances of
>> botanical lilium taxa native to the Pacific coastal region of North America...
> Your message is, I am afraid, unclear. Are you looking for specific lily taxa, 
> specific locations, specific lilies from specific locations, or any old lily 
> from any three distinct locations?
> If you are interested in specific taxa, what are they? If specific locations, 
> where are they?

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