Collection wrote:
At 8/30/2012:

4) Toumeya papiracantha - 60% germination

2 more Toumeya seeds germinated, so, germination rate is 80%.

Astrophytum is the genus of cactii which seeds have very high germination rate, and seedlings are very easy to grow.

My 1.5 months old Sclerocactus and Toumeya shrank... I didn't expect it's still alive, but surprisingly they blow up to normal "fat'' seedlings. I would suggest that shrinkage is common for Sclers of any age.

If someone is interested, I would like to share my experience: seeding 6/30/2012 1) Sclerocactus glaucus was scarified prior seeding - 40% germination for today; 2) Sclerocactus parviflorus was scarified prior seeding - 30% germination; 3) Pedocactus paradinei was scarified prior seeding - 100% ger...

If someone is interested, I would like to share my experience: seeding 6/30/2012 1) Sclerocactus glaucus was scarified prior seeding - 40% germination for today; 2) Sclerocactus parviflorus was scarified prior seeding - 30% germination; 3) Pedocactus paradinei was scarified prior seeding - 100% germ...

bananaman wrote: So, should I try it?

You should, even if species is hard to grow. We should improve our skills to become masters

Let me tell you what I do: 1) soil mix and coarse sand put in 2 different bowls, microwave them for 20 minutes 2) get cell-box (from candies of medicine), label each cell with the name of the species, put bit of H2O2 3% on the bottom of each cell, soak seeds for 2-3 hrs. I use Ferrero Rocher box wit...

I do. It works.
I seeded scarified Pediocactus and Sclerocactus, and Toumeya which was not scarified. Pedio&Sclero began to germinate in 2 days, Toumeya did not.
Looking at Pedio/Sclero success I scarified the one of Toumeya seeds - still not result.

oh, I have read about it. If seeds are going to be disinfected and scarified, they do not need cold.

Yes, it is summer now. I know this time is not perfect for seeding Pediocactus, but I'll graft them, and they will be fine.

I have 6 of 10 Pediocactus germinated on 3rd day after seeding. So happy!
(to compare, there is only one Sclerocactus germinated)

Caput-medusa seeds are too expensive in Mesa Garden. I was able to buy 20 seeds for $5 from other source but I do not remember the name of it. Just google ''caput-medusa seeds'' and you will find it. It is not rare anymore.
If you want, I can give you seller's e-mail. Send me a PM.

I'll accept seeds or a grafted plant. I will appreciate if you give me any information about a place where I can buy it. The USA ONLY!!!

Finally, I have got a few plants from different sources to be able to pollinate them. I believe they will bloom next year.

Thank you