Scottish Rock Garden Club Forum

Seedy Subjects! => Grow From Seed => Topic started by: Palustris on October 22, 2016, 03:39:48 PM

Title: Roscoea seeds
Post by: Palustris on October 22, 2016, 03:39:48 PM

Forgive the ignorance, first time we have managed to actually beat the molluscs to any seeds.
Sow fresh or sow in Spring after wintering in the fridge?
TIA.

Title: Re: Roscoea seeds
Post by: Maggi Young on October 22, 2016, 06:27:24 PM

Various SRGC members discussed this on the NARGS forum!
 https://www.nargs.org/forum/roscoea-germination-techniques (https://www.nargs.org/forum/roscoea-germination-techniques)

 Ontario Rock Garden & Hardy Perennial Society Germination instructions :   http://www.onrockgarden.com/germination-guide/plants (http://www.onrockgarden.com/germination-guide/plants)

Title: Re: Roscoea seeds
Post by: Palustris on October 22, 2016, 09:12:28 PM

Thanks. Seems sowing now is the thing to do. Will get on with it on Monday then. Cheers!

Title: Re: Roscoea seeds
Post by: Gabriela on October 22, 2016, 11:50:57 PM

There must be differences between various species and seeds provenience, but all Roscoea I've done from seeds, would qualify as warm germinators or requiring about 1 month of cold (auriculata, alpina, scillifolia, tibetica, schneideriana...).
I notice that most would germinate better after the 1 month cold so I sow usually somewhere in January, and by end of February they come under lights indoors. This works well in our climate; outside they would germinate in late May probably and get a shorter growing season.
I will look for few seedlings images.

Images showing Roscoea seedlings size in March/April.