please could someone give advice about the method of planting gebera seeds, depth etc . thanks?

Yes. Plant them about 1/4 to 1/2 inch into a starter tray of planting mix. Place the starter tray under a plant light. Keep the soil moist, never let it dry out and do not over water by making sure it can fully drain. You must check on the soils moisture like a mother hen.

When the seedlings start to pop out that's a good sign. You've achieved success so far as the root system is forming at that time and establishing itself.

Next, after the primary leaves have formed, you wait for the secondary leaves to become good and strong. After that, you carefully transplant each Gerbera Daisy baby into a bigger compartment, such as those flower tray flats you buy to transplant flowers.

You add fertilizer in the right amount, not too much or you will burn and kill your emerging flowers, and keep the soil moist but not drenched. Again, keeping sunlight or a plant light over these flats.

Once they have full leaves and flower buds begin to emerge, you can then identify what color they are. Thus, when Spring comes, you can transplant your pallet of color and allow your Gerberas to establish themselves in your garden.

At first they are a little sensitive to the transplant, so to keep them from wilting or going into shock, you must use transplant fertilizer. It stimulates root production which will help your Gerberas harden off, or become impervious to the hot and cold weather changes out doors during the Spring.

It's a vitamin B complex trans plant fertilizer that you can get in any nursery store. It's inexpensive and you mix a lid full with a gallon of water.

That's it, and enjoy your Gerberas. Just don't plant the seeds during the winter outside or they will stay dormant and or get eaten by microscopic insects because it's too cold for them to get established. Unless you live in Australia or the other side of the world where it is beginning Spring right now.

Otherwise, another method is to plant the seeds out doors in the Spring. It will take a full season before you see it begin to flower but the reward is nice. They will establish themselves and bloom year after year.

Make sure you keep snails and slugs off of the leaves so that they don't get eaten away. You can use Escargo, a non poisonous snail bait that is organic and won't hurt birds, dogs or cats.. or control slugs or snails by using grapefruit halves after you've eaten the grape fruit. You place them upside down in strategic spots in your garden where you know they've been and they crawl up in them and you throw them out every morning. Another suggestion are little plastic bunny bowls or Mayonaise lids with a little beer in it just placed neer the surface of the soil which will also attract and kill snails and slugs.

That's it, hope this helps.