santoury@aol.com santoury@aol.com
Thu, 10 Mar 2011 11:28:32 PST
 Thanks - very helpful info! 
Now to find a good inexpensive source for a variety of these! 




-----Original Message-----
From: Brian Whyer <brian.whyer@btinternet.com>
To: Pacific Bulb Society <pbs@lists.ibiblio.org>
Sent: Thu, Mar 10, 2011 2:23 pm
Subject: Re: [pbs] Dahlias

< Are you talking about cuttings from the stem ? Because when you say "cuttings 

from the < previous year's tubers" that confuses me, since you say the plant 

doesn't "need to form a < new tuber system" ? 


You can carefully divide the tuber "cluster" vertically down through the stem, 

taking care to keep a portion of the main stem with each tuber, preferably after 

the plant starts shooting so you get 1 or more new shoots on each division. Or 

you can slice off the shoots close to the stem and root them in the usual gritty 

rooting compost, and establish a new plant first from each cutting. They should 

root in 2-3 weeks; as long as you cut close to the tuber. Leave a couple of 

shoots on the old tuber and you will have a number of new plants from the one 

original tuber clump.


Brian Whyer, Buckinghamshire, England, zone ~8

-----Original Message-----

From: Brian Whyer brian.whyer@btinternet.com

Dahlia nurseries will grow named forms year after year taking cuttings from 

their previous years tubers, with the same quality each year. If you are 

planting or splitting tubers and restrict the shoots to just 2 or 3 then they 

should be little different from the previous year. If you grow from tubers they 

will flower slightly earlier than from rooted cuttings, presumably because the 

plant does not have to form a new tuber system first. Usefull for the large 

flowered monsters which tend to flower late. Disbudding side shoots will give 

you larger flowers.

I think named form Dahlias are only cheap in countries where they don't have to 

be lifted and stored each year, or if you grow seed strains.

Brian Whyer, Buckinghamshire, England, zone ~8

There are no hardy ones that I am aware of. I can winter them over, keep dry in 

paper bags, but the second year's display is never the same as the first, from 

freshly bought tubers. For me, anyway. 


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