Turbo-Mulch, added to your trees, will reduce growing time by 25%
Once you've clicked on the Zeppelin showing this graphic:

Once you've clicked on the mobile-event-place in the City:

You'll see a pop-up, with two tabs:

Giver & Merchant:

Giver:

Merchant:

To Give or Barter any items, first you will need to get some

"Licences to Gift" &/or "Licenses to Sell".

These can be purchased for BBs.

1 licence costs 2 BB - will allow you to send 1 gift OR sell 1 item

6 licences costs 10 BB (17% off) - will allow you to send 6 gifts OR sell 6 item items

20 licences costs 30 BB (25% off) - will allow you to send 20 gifts OR sell 20 items

75 licences costs 100 BB (33% off) - will allow you to send 75 gifts OR sell 75 items

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When you have your "Licences to Gift" you'll be able to give some items from your inventory to your neighbours/buddies.

Click on the Gift icon

Then select an item to gift,

and choose the person you want to send it to.

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When you have your "Licences to Sell" you'll be able to sell some of your excess items off to the "system" and win some CCs.

Click on the Trade icon

and select which item you want to sell.

The CC value will be indicated for each item.

"Give your unwanted items a 2nd life"

Don't feel like waiting for your crops to grow? Want to finish the next event more quickly? No problem! Stock up on super-grow now and save yourself a bunch! Buy the large pack and treat two of your friends to something nice. They'll each been given two units of super-grow!
Once you've clicked on the Event Place in the City,
this will take you to this screen where you can choose which pack you want to purchase.

All toolboxes in the supply store are half price!

Half Price Tool Boxes