Hi Marcey, you may follow Tracey's intro below, that's explain how to move on Myth.

With a RTH Gathering Fairies mushroom.  Once it is ready to harvest it will attract the Pegasus.

You haven't attracted the Pegasus yet.  You will need to do that first, once your Gathering Fairies mushroom is RTH.  You will also need to spot one in other gardens.

Once you've done that, and reached Legendary, you will be able to plant the Pink Cap.

I saw you'd asked again on the forums about unicorns, but when I tried to reply the thread had been removed.

Perhaps you hadn't realised that both of your previous threads had been answered?  Anyway, I thought I'd reply here too.

You haven't unlocked the Pink Cap mushroom which attracts the unicorn, so you would need to continue through the mythological levels until you are able to plant one.

You're able to attract the Phoenix, but you haven't done any myths past that point so you can't attract the Unicorn yet. 

You have to unlock each mythical animal by spotting and attracting each myth, harvesting the mushroom, and reaching a particular wildlife level.  You will need to do the Pegasus first, when you are able to, before you can attract a unicorn.

You will need to reach a wildlife level of Astral before you can plant for the Pegasus, and you'd then need to spot/attract the Pegasus and reach a wildlife level of Legendary before you can plant for the Unicorn.

Hi Marcey, the mushie is ready in our garden to attract Phoenix on super plate. Spot it any time.

St Pete is nice enjoy your time with your company😀

Mythological creatures, need to be spotted in someone else garden then you get the seed to move on .

Amethyst Parasol mushie is for Phoenix, I've planted & dusted for you wait until RFH then will put super food out to increase the chances of Phoenix arrives. You may spot as many as you need.:) xx

Hi Marcey, what sort of Unicorn you need to spot? I can attract any of it for you, please let me know.

getting a unicorn is just extremely challenging for everyone because of the very short stay time, often as short as two minutes tonly and they rarely visit anyway so the best is
idea  is to use Super Food because they will always stay the maximum time on it. and sometimes you have to monitor or even stalk your own garden and freeze when you can’t which is what I am doing currently.