plant mod

[scenic agate]

make a mod that shows whether your plant has grown

[marsh halo]

Good idea honestly, vanilla tweaks already has that but under a resource pack so why not lunar?

[oblique yoke]

just use f3 and check if it says age 7

[blissful wyvern]

lazyness: allow me to introduce myself

[turbid flint]

There are multiple texture packs you can download from the internet

[valid nexus]

this can be achieved in multiple ways, the easiest is by the visual representation natively built in to minecraft. what exactly did you want? a hovering text showing growth percentage or something similar to that?

[sage adder]

possible with resource packs