share knowledge about cuttings, divisions, and seedlings

Link to pdfs of Dr. Denos seed germination books.

Submitted by Weiser on Sun, 10/24/2010 - 09:01

These links to Dr Deno's "Seed Germination: Theory and Practice" and the two supplemental books are free downloads at the USDA National Agriculture Library online site. I know this book is out of print and nearly impossible to find. I hope this information is useful.

Title: Seed germination, theory and practice.


Care of second-year Arisaema seedlings

Submitted by JDumont on Sat, 07/04/2020 - 12:20
I see my question did not come through so I'm giving it another go. I have second-year seedlings of Arisaema consanguineum in 2-inch pots. They've just emerged in late June (as have my first-year seedlings). Should I leave them in their small pots for another year? Winter care this last winter was in a cold, but not freezing, garage with just enough water so they did not totally dry out. Should care this winter be the same? Note that the seedlings did go dormant last year (their first year) in late summer.

Seed Import Problems affecting Seattle APHIS

Submitted by Jeddeloh on Wed, 02/05/2020 - 13:00

Hi all,

Since this is a the propagation board I'll assume some of you  "seedy characters"  also belong to SRGC and AGS and order seed from their seed exchanges.  There has been a big glitch for those of us whose seed goes through the Seattle APHIS inspection station.  The APHIS inspectors are pulling large numbers of taxa because of "unknown fungus".  Some people have about half their order taken. In previous years typically none was confiscated.  

Anemonopsis: when to harvest and sow seeds

Submitted by Walker on Sat, 09/14/2019 - 19:04

I acquired  Anemonopsis macrophylla this summer and noticed today that it has developed a fair number of seed pods. I’m sure ‘pods’ is not the correct term but hopefully those of you familiar with Anemonopsis will know what I mean. I’d like to harvest the seeds and sow them. How can I tell when the seeds are ripe and ready to harvest? And as for sowing, I’ve read a number of different approaches, but I’m leaning toward sowing the fresh seed in individual pots (to avoid damaging the fragile roots later) and overwintering outdoors. Is this a sound plan? 

Corallodiscus lanuginosus

Submitted by Jeddeloh on Sun, 02/05/2017 - 21:32

I got some Corallodiscus lanuginosus (a Chinese gesneriad) seed from the NARGS seed exchange.  I sowed it on January 27 on sterilized peat pellets per my usual method of dealing with dinky seed, put them under florescent lights and was pleasantly surprised to find it germinating today.  I may kill it tomorrow but at least I can say I germinated it.  


Swamp pink Helonias bullata

Submitted by Toole on Fri, 03/18/2016 - 17:28

Howdy all --I wonder if there are any members who have practical experience in germinating this beauty.

I've tried some many times over the years without any success however overseas seed received recently which has been soaked in water for a week appears to have plumped up......Any thoughts would be welcome thanks.

Cheers Dave.