Schedule 1 Additives List & Guide

Image Credit: TVGS, Schedule I

Additives can boost your plants' growth, yield, or quality. This guide explains each additive, how combinations work, and where to get them.

Additives

Fertilizer

Increases plant quality. Best choice if you want premium products.

PGR (Plant Growth Regulator)

Increases yield but reduces quality. Ideal if you want quantity over quality.

Speed Grow

Cuts growth time by 50% but reduces quality. Useful when you want faster harvests.

Additive Combinations

Additive	PGR	Speed Grow	Fertilizer	Effect
None	No	No	No	Standard
PGR Only	Yes	No	No	Poor
PGR + Speed Grow	Yes	Yes	No	Trash
Speed Grow Only	No	Yes	No	Poor
All Three	Yes	Yes	Yes	Standard
Fertilizer Only	No	No	Yes	Premium

Tip: For the highest quality, just use Fertilizer alone.

How to Use Additives

1. Plant a seed in a pot or grow tent.

2. Equip an additive bottle.

3. Interact with the pot or tent.

4. Hold the bottle, tilt with movement keys, and pour over the soil.

5. Spread evenly until the coverage meter hits 100%.

6. You’ll see small colored dots in the soil showing which additive was applied.

Note: Empty bottles can be sold at the Trash Grabber for $1 each. They also fill the Trash Grabber bin by 10%.

Botanists can apply additives automatically when managing plants.

Where to Get Additives

• Dan’s Hardware

• Handy Hank’s

• Phone Delivery (Bungalow, Barn, and Docks Warehouse only)

Keep experimenting with different additive combos to fit your growing strategy!

---

Recommended | View all Schedule I