The Riser

Grow up.

The world's first telescoping mushroom garden for personal use.

Scroll to raise the lid

Small by design. Personal by nature.

The Riser · Desk-size mushroom grow kit

Raise the lid. That's the whole job.

A desk-size mushroom grow kit with a telescoping cover that lets in fresh air as your mushrooms need it. No tubs. No misting. No science project.

Get The Riser — $39 See how it works

Ships sealed with sterile substrate. You add one culture syringe.

No tubsNo mistingNo mixingNo cutting bagsNo grow tentNo science project

How it works

Add. Wait. Raise.

Three steps. The directions fit on one card, and the card is in the box.

01Day one

Add

Wipe the port on top and add your culture syringe. The substrate stays sealed the whole time.

02A few weeks

Wait

Set it on a desk or shelf, out of direct sun. Leave it closed until the surface turns solid white.

03Then pick

Raise

When the first tiny mushrooms show up, raise the cover a notch. Raise it again as they grow. Then pick.

Why it's different

It rises when they do.

Every other kit makes you manage the air. On The Riser, the cover is the air system.

Fresh air, right on time

Each notch you raise the cover opens another row of vents. Closed while it grows in. Open when the mushrooms need to breathe. You never fan, mist or poke holes.

Sterile from the start

The substrate is sterilized and sealed before it leaves us. You add your culture through a sealed port, so the kit never has to be opened.

Small on purpose

About [H] inches tall. Made for a desk, a bookshelf or a kitchen counter. A personal-size harvest, not a basement project.

Nothing to mix

No spawn bags to break up, no tubs to fill, no layers to add. Everything is already in the base, ready to go.

Compare

What's out there.

Most home kits ask for a tub, a spray bottle and a schedule. Here's how they stack up.

Feature	Spray-and-grow box	All-in-one grow bag	Monotub kit	The Riser
Price to start	$20–30	$31–35 per bag	$59–130	$39
Size	Shoebox, on the counter	3 lb bag, often plus a tub or tent	12-inch cube up to a 22 × 15 inch tub	Desk-size
Misting	Every day	Often, once the bag is opened	Yes, plus fanning	Never
Mixing or cutting	Open the box	Break and mix, then open the bag	Spawn to bulk, add a casing layer	None
You choose what grows	No, it's pre-grown	Yes, add a syringe	Yes, add a syringe	Yes, add a syringe

Typical prices at major U.S. retailers, October 2026.

What you get

Everything but one syringe.

The Riser comes ready to grow. You pick what grows in it.

In the box

$39

The Riser base, filled with sterile substrate and sealed at our shop
Telescoping cover with built-in vents and a sealed inoculation port
The one-card directions: Add. Wait. Raise.

Get The Riser — $39

You bring

One culture syringe, about $20. Our gourmet picks are below.
A spot at room temperature, out of direct sun
A few weeks of patience

Baker Drug Company makes the container and the sterile substrate. We don't sell spores, cultures or mushrooms. Please follow the laws where you live.

Start with a gourmet culture.

Each one is a single syringe. Grow it on your desk, then cook it for dinner.

Almond Agaricus

A cousin of the cremini with a sweet, almond scent. It grows in compost-rich soil.

About $22 · North Spore

Get the culture

Blue Oyster

The classic first grow. Fast, forgiving and great seared in butter.

About $20 · North Spore

Get the culture

Golden Oyster

Bright yellow clusters with a mild, nutty flavor. A showpiece on a desk.

About $20 · North Spore

Get the culture

Pink Oyster

Coral pink and quick to fruit. Likes a warm room. Savory when cooked.

About $22 · North Spore

Get the culture

Cultures are sold by North Spore, an independent mushroom supplier. [If you join their affiliate program: Baker Drug Company may earn a small commission.] [Launch note: list only cultures you've grown in The Riser.]

Our story

Three generations of keeping it simple.

[Family photo: the original Baker Drug storefront]

Baker Drug Company started behind a pharmacy counter. My grandfather, [NAME], opened Baker Drug in [TOWN, STATE] in [YEAR]. My dad, [NAME], grew up sweeping its floors and spent [XX] years behind that counter. He was the pharmacist people asked for by name.

They had one rule: nobody leaves confused. Clean hands, exact measures, and directions you could follow at the kitchen table.

The Riser is built on that rule. Clean where it counts, sized just right, and simple enough that the directions fit on one card.

— Philip Baker, Baker Drug Company

Questions

What do I need besides the kit?

One culture syringe. That's the whole shopping list.

Do I ever mist it?

No. The cover holds the humidity in, and raising it lets fresh air in when it's needed.

How big is it?

[H × W] inches. About the size of [a coffee canister]. It sits on a desk.

How much will it grow?

A personal-size harvest. Results depend on your culture, room temperature and timing. [Tested yield range]

Do you sell spores or cultures?

No. Baker Drug Company makes the container and the sterile substrate only. Our gourmet picks link to North Spore.

What if something goes wrong?

Green, blue or black spots mean contamination. Keep it closed and write us at [support email]. [Guarantee terms]

Raise the lid.

Your own little mushroom garden. Ready when you are.

Get The Riser — $39