Oyster mushroom grow kits

By Cedrick Reese, GrowMushroomKits.com

Checked on November 11, 2026

Six oyster kits compared by price, size and stated days to first harvest. Boxed kits state 10 to 15 days, from each seller's own figures.

Ranked from those figures, not grow tests.

Oyster10 to 15 days

Days to first harvest as sellers state it: North Spore, Back to the Roots and Far West Fungi. Checked November 11, 2026.

Oyster kits side by side

Scroll sideways to see every column.

Specs are the sellers' stated figures. Prices checked on November 11, 2026.
Kit	Species	First harvest	Stated yield	Price	Buy
North Spore Organic Blue Oyster Spray & Grow Boxed kit, spray and grow	Blue oyster	10 to 15 days	0.5 to 2 lb in the first flush	$34.99 as of November 11, 2026	See price at North Spore
North Spore Organic Pink Oyster Spray & Grow Boxed kit, spray and grow	Pink oyster	10 to 15 days	Not stated by the seller	$34.99 as of November 11, 2026	See price at North Spore
Back to the Roots Organic Mushroom Grow Kit (pearl oyster) Boxed kit, spray and grow	Pearl oyster	About 10 days	3 to 4 servings per crop	$19.99 (regular price $24.99) as of November 11, 2026	See price at Back to the Roots
Far West Fungi Mini-Farm (tree oyster) Boxed Mini-Farm kit	Tree oyster	10 to 14 days	1 to 2 lb across 3 to 4 harvests	$25 (less per kit in multi-packs) as of November 11, 2026	See price at Far West Fungi
Far West Fungi Mini-Farm (pink oyster) Boxed Mini-Farm kit	Pink oyster	10 to 14 days	1 to 2 lb across 3 to 4 harvests	$25 (less per kit in multi-packs) as of November 11, 2026	See price at Far West Fungi
North Spore Organic Blue Oyster Fruiting Block Fruiting block in a bag	Blue oyster	Not stated by the seller	1 to 2 lb per flush, less in later flushes	From $34.99 as of November 11, 2026	See price at North Spore

The oyster picks

North Spore Organic Blue Oyster Spray & Grow

BLUE OYSTER

Pick for the clearest published figures

PRICE: $34.99 as of November 11, 2026
BLOCK: 4 lb
STATED YIELD: 0.5 to 2 lb in the first flush
FLUSHES: 1 guaranteed, more possible
GUARANTEE: First flush guaranteed. Free replacement within 30 days of receipt if damaged, contaminated or unusable.

First harvest10 to 15 days

Pins in 6 to 10 days, then 4 to 5 days to a full flush. The product page also says as little as 7 days.

Listed as in stock, shipping in 2 to 5 business days.

Specs from the seller's page, checked on November 11, 2026.

See current price at North Spore

Who it suits. A first-time grower who wants the full spec list: 4 lb kit, a first flush of 0.5 to 2 lb, and a 30-day replacement policy.

Who should skip it. You want the cheapest kit. Back to the Roots lists a lower price when it is in stock.

North Spore Organic Pink Oyster Spray & Grow

PINK OYSTER

Pick for color

PRICE: $34.99 as of November 11, 2026
BLOCK: Not stated by the seller
STATED YIELD: Not stated by the seller
FLUSHES: 1 guaranteed, more possible
GUARANTEE: First flush guaranteed. Free replacement within 30 days of receipt if damaged, contaminated or unusable.

First harvest10 to 15 days

The seller gives these figures for its Spray & Grow line: pins in 6 to 10 days, then about 4 to 5 days to a full flush.

No beginner badge is shown on the collection page we checked.

Specs from the seller's page, checked on November 11, 2026.

See current price at North Spore

Who it suits. Someone who wants pink oyster from the same seller as the blue kit and the same price.

Who should skip it. You want a stated yield. The pages we checked do not give one for the pink kit.

Back to the Roots Organic Mushroom Grow Kit (pearl oyster)

PEARL OYSTER

Pick for the lowest listed price

PRICE: $19.99 (regular price $24.99) as of November 11, 2026
BLOCK: Not stated by the seller
STATED YIELD: 3 to 4 servings per crop
FLUSHES: Up to 2 crops
GUARANTEE: Replaced free of charge if it does not grow as described.

First harvestAbout 10 days

The seller says harvest in 10 days.

USDA organic. Made in Michigan.
4.8 out of 5 from 524 reviews on the seller's own site.

Sold out when checked.

Specs from the seller's page, checked on November 11, 2026.

See current price at Back to the Roots

Who it suits. A trial run or a child's project. The seller says harvest in 10 days and up to two crops.

Who should skip it. You need it now. It was sold out when we checked.

Far West Fungi Mini-Farm (pink oyster)

PINK OYSTER

Pick for repeat harvests

PRICE: $25 (less per kit in multi-packs) as of November 11, 2026
BLOCK: Not stated by the seller
STATED YIELD: 1 to 2 lb across 3 to 4 harvests
FLUSHES: 3 to 4 harvests
GUARANTEE: At least one harvest guaranteed if cared for as instructed. Replaced if it still does not fruit.

First harvest10 to 14 days

Pins usually appear in 5 to 8 days, and most kits are ready to harvest in 10 to 14 days.

CCOF certified organic, grown on the seller's California farm.

Specs from the seller's page, checked on November 11, 2026.

See current price at Far West Fungi

Who it suits. Someone who wants several small harvests. The seller states 3 to 4 harvests for 1 to 2 lb in total.

Who should skip it. You need to know the block weight. The page does not state it.

Boxed kit or fruiting block

A boxed spray-and-grow kit lives on a counter. A bagged fruiting block, like North Spore's blue oyster block at roughly 5 lb, is bigger and gives a larger flush, but the seller says it does best in a monotub or martha tent. If you want the simple route, buy the box. If you already have a chamber, the block gives you more per purchase.

Whichever you pick, harvest while the cap edges are still curled. Our guide to when to harvest oyster mushrooms shows what to look for, and how to grow oyster mushrooms walks through the whole cycle.

Questions about oyster kits

Which oyster mushroom kit grows fastest?

By the sellers' figures, the boxed oyster kits all land in the same window: Back to the Roots says harvest in 10 days, Far West Fungi says 10 to 14 days, and North Spore's Spray & Grow line pins in 6 to 10 days and then needs 4 to 5 days more. North Spore's product page also says as little as 7 days.

Which oyster color should I pick?

North Spore labels its blue oyster Spray & Grow kit best for beginners and calls it one of its easiest and most reliable. The pink oyster kit shows no beginner badge on the pages we checked. Pearl and tree oyster kits come from Back to the Roots and Far West Fungi.

How many harvests will an oyster kit give?

Sellers guarantee one flush. North Spore says its blue oyster kit should give a second flush or more with proper care, and Far West Fungi states 3 to 4 harvests across its Mini-Farm line. Each later flush is usually smaller.

Does the kit come with a spray bottle?

North Spore's Spray & Grow kits come with a mister, and the seller says to spritz daily. Check what is in the box for the other brands before you buy, since their pages do not all say.

Sources

North Spore Organic Blue Oyster Spray & Grow product page, North Spore. Checked November 11, 2026.
North Spore: spray grow mushroom kits page, North Spore. Checked November 11, 2026.
North Spore Organic Pink Oyster Spray & Grow product page, North Spore. Checked November 11, 2026.
North Spore: 3 pack oyster spray grow mushroom growing kit bundle page, North Spore. Checked November 11, 2026.
Back to the Roots Organic Mushroom Grow Kit (pearl oyster) product page, Back to the Roots. Checked November 11, 2026.
Far West Fungi Mini-Farm (tree oyster) product page, Far West Fungi. Checked November 11, 2026.
North Spore Organic Blue Oyster Fruiting Block product page, North Spore. Checked November 11, 2026.
North Spore: blocksbox monthly mushroom kit subscription page, North Spore. Checked November 11, 2026.

How this page is checked

Cedrick Reese compared six oyster kits and fruiting blocks from North Spore, Back to the Roots and Far West Fungi. The days-to-first-harvest column is each seller's stated range, copied as written, and the species notes come from the same product pages. We have not run an oyster grow for this page, so treat the timing as the seller's estimate. Each source is linked in the list below with its check date.