Codonopsis advice

Sun, 12 Nov 2006 11:25:56 PST
Thanks, that's the info I was looking for.  I had no idea that they would 
take so long to mature but if I can get seeds this year I will certainly try 

----- Original Message ----- 
From: "Laura & Dave" <>
To: "Pacific Bulb Society" <>
Sent: Saturday, November 11, 2006 7:28 PM
Subject: [pbs] Codonopsis advice

> Richard and all
>  Sorry to hear that you lost the seedlings, but don't give up as
> they're definitely worth growing!  My guess is that the transplanting at
> an early age was the main cause of your problems.  I sow seed through a
> 1/4 inch layer of chicken grit (granite) into 4" inch pots of a
> moderately organic, well draining soil. I then plunge the pots to the
> rim into a sawdust bed and leave them there for a couple of years. This
> provides the cool roots they prefer. I can grow Codonopsis in full sun,
> but I'm further north (47 N latitude) and on a lake, which keeps the
> humidity high. After two growing seasons, they have usually developed
> tuberous roots capable of surviving a bit of handling and dormancy.
> Don't sow too thickly, as the two year old roots seem to take delight in
> creative knot work, despite ample space in the pot..  For me, 3 or 4
> years need to pass before flowering, rather than the 2 or 3 often
> quoted.  But I'm a "slow" grower, not liking to push plants into
> maturity as fast as possible.
> Dave Brastow
> Tumwater, WA (USA) 7A
> After a dry fall, we've had over 13" of rain since the first of November
> (Glub!)
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