The one on the right looks weedish, the other looks like "something" but really at 2 leaf stage, it's too soon to tell. Wait a bit or pot it on for the time being.

Did you sow any squash, melon, zucchini, cucumber seed? The big seedling looks like a Cucurbit. The small one looks like Sow Thistle as identified in your other post.

What is the growing medium? Does it contain home made compost? That could be where these strays are coming from.

Dear floral yes I did plant a few watermelon seeds, but watermelon leaves look different with star like leaves?

Yes the compost is mostly leaves from nearby trees and I water them daily.

This post was edited by maufie on Mon, Dec 15, 14 at 2:34

I've never grown watermelon but seedling leaves are often a different shape from mature leaves.

The distinctive watermelon leaves come later with the first real leaves. The cotyledon are the embryonic first leaves of a seedling and they often look much different than the real leaves which will grow later. Squash, melons, and sunflowers all start out with these big oval cotyledons.

FataMorgana

Thanks dear floral and fatamorgana, yes will wait for few more weeks and see as it doesn't look like a weed and don't want to pull it now. Thanks

Yes it is watermelon I can see new watermelon like new leaves forming now, thanks