Sound is chill, could use some additional FX for the plants/money.
I'd like to the seed pack mechanic expanded, it gives the game personality.
With somer QoL and UX enhancements I could definitely see it as a full game, the progression could be made into "stages" with disabled and custom tiles (see Loop Hero), but I'd love to hear if you have any plans for it.
My main issue is that it feels a tad slow towards the end. Great job with the game!