I was getting really frustrated with my palms so I went outside and dug them up. I was delighted to see that two species had begun to sprout! You can see the Trachycarpus wagnerianus on the right. One of the two sprouts has a bit of rot towards the tip but I'm hoping it will pull through. On the left you can see two Chamaerops humilis var. cerifera sprouts. I don't see any signs of rot. I expect some more sprouts so I'll keep checking. I planted about 10 seeds of each variety. I'll grow them indoors through the first winter under lights. Still no luck with the Jubaea chilensis but apparently they can take up to a year.
Now here is what my community plot looks like right now. Just planted the Musa basjoo (banana) as well as some calla lily in front and my 25 Trachycarpus fortunei palm sprouts. I've been told they probably won't survive the winter unprotected so I might have to erect a little structure. They're hard to see in the picture, just to the right of the tomato plants in the centre.