I checked my records and last year it took 10 days for my canna seed to sprout. I'm not sure if continual soaking is the way to go. I chipped my seed, soaked for 2 days and then planted them in pots and kept warm. Another possibility is that you cooked the seed on top of the basebboard heater. Those things can get hot. When I've used my radiatos for keeping things warm, I always put a 1 inch thick board underneath the pots so they don't come in direct contact with the radiator. The more I think about it, I think that's what happened to yours. Sorry.

Kevin

Other than cooking them and killing the embryo, it could also be the time of year which would result in taking longer if you're using natural light as well as heat.

I've always filed each seed until I see the white. Then put them into hot, hot water. I then change the water every day, using warm water until I see them starting to sprout. I've never used any type of heating device, whether during the cold months or warm months and always put them in my kitchen window in a clear container. The winter seeds always have taken longer to sprout.

If your baseboard really hasn't been all that hot and has just given out gentle warmth, it's possible that the seeds are just taking their time. Also, some seeds will take longer to sprout than others.

Jenna

I think you may have cooked them too!

You are starting them the hard way though! I drill a hole about the size of a bb, soak in warmish water for 24 hour then plant in grow mix to a depth twice the size of the seed. In about a week or so I have canna pushing up.

Put those puppies in dirt in a pot after soaking and on a heating pad and make sure they stay moist but not wet! I cover mine with a clear plastic shower cap. You can get them by the zillions at a dollar store for a dollar.

X

I received several seed trades that did not sprout at all. Others 90%. It might be your seed. I just left mine on the kitchen counter- not next to heat.
kAREN

I keep forgetting to send you an email I got from a canna hybridizer. He suggests the mid 80's for canna. He suggests a jiffy seed starter kit if you have one.

Anotehr hybridizer suggests not nicking at all. he has luck with rinsing out a pop bottle and with just the amount of water left from the rinsing, he puts the seeds in there, puts the cap on, and puts the bottle in a warm place like a hot window- he's down south. He says they sprout within days in the steamy bottle. I have not tried this myself. It seems htere are many ways to start these....
karen