Yes, plant away. Put some suitable compost in a 3 inch pot, press one see into each pot making sure that the seed stays on its edge and not lying flat, water it really well until it is soaked, allow the excess water to drain away and don't water it again until the seed germinates. Mine were in a warm room and came up in four days. Once they emerge they grow so quickly they will soon catch up and can be put into bigger pots or into the ground.
There should be plenty of time, assuming we ever get rid of this rain!
The last lot I soaked for about 5 hours before sowing and they came up much quicker than the ones I didn't soak.