Celestia's Lesser Plant Factory

You magically grow or alter an existing plant no bigger than a medium sized creature to have the property of a Beast. As long as the plant is rooted into fertile soil with access to light and water, after the spell is cast, it will continue to persist and function for forever until it is deprived of one of the previously mentioned for 3 days or it is destroyed. A plant made by this spell has an AC 10, and 10 HP. and is no bigger than a 5ft-by-5ft cube and has tremor sense up to 10ft of itself.

The spell caster decides what animal property the plant has when the spell is casted and must be from an animal or beast whose CR is no higher than the level of the spell slot used to cast this spell. The plant can't move from where it is rooted but it can move an appendage and reach up to 5ft. The plant can perform either any action, bonus action, reaction, trait, or inherit one of the animal's senses such as sight, darkvision, etc. from the selected animal's stat block (only one per plant), produce a material that the animal can produce or is comprised of (up to 1lb of material or 5gp worth of material per day), or do a simple and repetitive function that is reasonably with-in that animal's capability. The plant can't "see" with vision unless given as a function but does have tremor sense by default up to 10ft. A plant can only do one inherited thing, but you can have multiple plant factories working together to perform more complicated things. 

Example 1. A plant with the property of a goat can produce anything a goat can provide such as goat's milk, fur/hide, meat, or even manure which can be used to fertilize more soil for more plant factories! (Note you can only have the plant produce one of these things and will have to make more factories for a different material.)

Example 2. A plant imbued with a crocodile's bite attack can be programmed to bite whenever a creature steps within range; making for a permanent trap that can deal damage and give that creature the grappled condition as per the bite's effect.

Example 3. A plant with a bat's blindsight detects an unfamiliar creature the spell caster didn't not designate and as programmed taps a specific pattern into the ground. A chain of plant factories relays the signal to several plants with the property of the Giant Ape's Boulder Toss which proceed to hurl the boulders at the creature from 90ft away!

As long as one plant can "see" something with its senses, other plants connected to that plant in a system similar to the one example above can also "see" what that plant sees for the purposes of all actions, abilities, and functions.

When upcasted with higher level spell slots, you can choose higher CR Beasts equal to the level of the spell slot used.