New here? A refill is just the block, no box, no mister.Start with a Grow Kit instead →
Refill · 5lb block
§ ShroomBag · Refill
Just the block.
Reuse your box. Refill it forever.
A 5lb fully-colonized substrate block, the same live, ready-to-fruit block that comes inside the kit, but on its own. Pick a strain, drop it into the ShroomBag box you already own, and start growing.
✓ What's included
- One 5lb colonized block
- Strain of your choice
- Ships live, ready to fruit
✕ Not included
- No box
- No mister
- Reuse the ones from your kit
Choose strain$20
Refills are restocking. Check back shortly, or grab a Grow Kit to start the cycle.
Ships live · ~14 days to fruit · Cut · Mist · Harvest
✓ Same 30-day ShroomBag guarantee →§ Refilling is the same grow you already know
Same process. New strain optional.
Step 01
Drop in the block
Open your ShroomBag box. Place the new 5lb colonized block inside.
Step 02
Cut & mist
We don't mark a spot. Make one cut, 4 to 5 inches long, anywhere on the front. Mist twice a day.
Step 03
Harvest in ~14 days
Twist and pull at the base. Expand outdoors when the block is ready to keep fruiting.