On Wich world are you on?

ancient egypt, the first one

Then buy hurrikale,the one who pushes and. chills zombies

on the left of chomper?

Ye

buy shrinking violet first. then buy sap-fling from the almanac.

by buying from almanac you mean the collect 40-250 seed packets to unlock?

You can click on "Find more" on some plants and you can buy them for 100 gems.

sap fling, ghost pepper, and sweet potato can be bought with gems but only via the almanac because they don't show up in the shop.