Skip to content
    All grow guidesGrow guide

    How to grow pink oyster mushrooms

    Pleurotus djamor

    Pink oyster fruits on straw or hardwood at 70–80°F (21–27°C), with a first harvest about 2–4 weeks after spawning. It fruits faster than other oysters, but it needs warmth and can't take a fridge.

    By Derick · October 24, 2026

    A cluster of pink oyster mushrooms with ruffled salmon-pink caps and gills on top of a colonized block
    Fruiting temperature
    70–80°F (21–27°C)
    Humidity
    85–95% RH (95–100% to pin)
    Spawn to first harvest
    About 2–4 weeks
    Grows on
    Straw, hardwood pellets, supplemented sawdust

    Difficulty: Easy. North Spore rates pink oyster a beginner species (North Spore booklet); the catch is warmth, since North Spore's fruiting range starts at 70°F (21°C).

    Pink oyster growing conditions at a glance

    StageTemperatureHumidityFresh air / CO2LightDays
    Bulk colonizationAbout 75°F (24°C)80–90%NoneDark9–14, until pins start
    Pinning70–80°F (21–27°C)95–100%500–1,000 ppm CO2Indirect light; more light gives pinker capsUnder a week, up to 12 days to first harvest
    Fruiting70–80°F (21–27°C)85–95%500–1,000 ppm CO2Same as pinningNext flush about 7 days after harvest
    Where these numbers come from
    • Colonization. GroCycle incubates its oysters at 75°F (24°C) and says pink oyster colonizes bags and starts to pin in 9–14 days (GroCycle, GroCycle). The 80–90% humidity and darkness are UF/IFAS's figures for oysters in general (UF/IFAS), and no air exchange is UC's (UC Cooperative Extension).
    • Pinning and fruiting. North Spore lists 70–80°F, 95–100% humidity for pins and 85–95% for the growing mushrooms, 500–1,000 ppm CO2, and more light for pinker caps (North Spore booklet). GroCycle fruits pink oyster at 68–86°F (20–30°C) and at least 70% humidity, preferring about 85%. It expects the first flush in under a week to 12 days, and the next about 7 days later (GroCycle).
    • Most of these figures rest on North Spore and GroCycle, companies that sell spawn, kits and courses.

    What does pink oyster grow on?

    • Straw

      GroCycle finds straw works best and colonizes fastest (GroCycle). UF/IFAS pasteurizes oyster straw at 165°F (74°C) for 1–2 hours (UF/IFAS); see sterilization vs pasteurization.

    • Hardwood pellets or supplemented sawdust

      These work, but GroCycle says pink oysters grown on wood come out thicker and tougher (GroCycle).

    • Paper, cardboard and coffee grounds

      GroCycle lists these, with mulch and soy hulls, among the materials pink oyster will grow on (GroCycle).

    How to grow pink oyster, step by step

    1. Keep the spawn warm

      Pink oyster grain spawn is ready when no bare kernels show and the bag feels firm. Store it at room temperature, not in the fridge; our pink oyster grain spawn guide covers readiness.

    2. Pasteurize and spawn

      Pasteurize straw, drain it and spawn it as soon as it cools, at 5–10% of its weight. Pack bags firm, like a pillow (UF/IFAS).

    3. Incubate warm and dark

      Keep bags at about 75°F (24°C). Pink oyster colonizes and starts to pin in 9–14 days (GroCycle), so check daily from the end of the first week.

    4. Open the bag to fruit

      Fold the excess plastic back tightly and cut an X or a diagonal slit across the top, or fruit from the side (North Spore booklet). Give it humidity, indirect light and fresh air; pinning follows within days.

    5. Harvest young

      Pick while the cap edges are still slightly turned under (North Spore booklet), before the caps drop spores.

    What's different about growing pink oyster?

    It wants heat and can't take cold

    Pink oyster grows wild in the tropics (GroCycle). North Spore fruits it at 70–80°F (21–27°C), where blue oyster runs at 55–75°F (13–24°C) (North Spore booklet). North Spore says it doesn't tolerate temperatures below 40°F (4°C), so its kits skip the fridge (North Spore help center), and Fungi Ally says its pink strain can't survive below 40°F (Fungi Ally). Many growers run blue oyster in the cold months and pink in summer (GroCycle).

    It's the fastest oyster

    GroCycle calls pink oyster probably the fastest-growing mushroom you'll find, ready in 13–15 days from start to finish (GroCycle). Our grow timeline gives about 4–7 weeks counting the grain spawn.

    It drops heavy spores and spoils fast

    GroCycle says pink oyster drops more spores than any oyster it has grown, so pick before the caps release them. Picked mushrooms may last only a couple of days in the fridge, so eat them within a day or two (GroCycle).

    When and how do you harvest pink oyster?

    Pink oyster is ready while the cap edges are still slightly turned under; North Spore picks it a little young because it spoils quickly (North Spore booklet). Cut off whole clusters with a sharp knife if you want more flushes (GroCycle).

    Keep the bag hydrated in fruiting conditions, and the next flush comes about 7 days later. GroCycle calls pink oyster one of the easier oysters to get a second or third flush from (GroCycle), while North Spore expects 2 from a block (North Spore booklet). See our second-flush guide.

    For yield, GroCycle expects at least 1 lb (0.45 kg) of fresh mushrooms from a 5 lb (2.27 kg) bag of straw and spawn (GroCycle).

    Common pink oyster problems

    Pins stall in a cool room

    North Spore's range for pink oyster starts at 70°F (21°C) (North Spore booklet), so suspect a cool room first. Move the block somewhere warmer or raise it off a cold floor; our temperature guide covers heating a chamber cheaply.

    Pink dust on everything

    Pink dust is spores from mushrooms left too long. Harvest earlier: GroCycle warns of the cleanup, and against breathing the spores (GroCycle).

    Pale caps

    Pale caps usually need more light. Once in a while, North Spore says, a block stays pale despite enough light (North Spore booklet).

    Sour grain or green patches

    A sour smell means bacteria, and green usually means Trichoderma. Toss the bag unopened, away from your grow space; see our contamination ID guide.

    Tracking a pink oyster grow in Hypha

    Hypha tracks each pink oyster block from inoculation through harvest. Its reminders start from typical timings, and pink oyster runs fast, so adjust a block's dates to match. Log harvests and photos on the block's timeline, trace each grain bag back to its source culture, and compare each strain's success and contamination rates. Download Hypha to start free.

    Get Hypha free

    Free forever · 60 days of Pro included · No credit card · iOS, Android & web

    Pink oyster growing FAQ

    How long does pink oyster take to grow?

    Pink oyster takes about 2–4 weeks from spawning to first harvest, or 4–7 weeks counting the grain spawn (grow timeline). GroCycle has grown it in 13–15 days from start to finish (GroCycle).

    Can you grow pink oyster indoors?

    Pink oyster grows well indoors in a room that stays at 70–80°F (21–27°C) (North Spore booklet). In temperate climates that means summer, or almost any time of year in the tropics (GroCycle).

    What temperature does pink oyster need?

    Pink oyster fruits at 70–80°F (21–27°C) by North Spore's range (North Spore booklet); GroCycle uses 68–86°F (20–30°C) (GroCycle). Keep kits, spawn and blocks above 40°F (4°C).

    Is pink oyster hard to grow?

    Pink oyster is easy if you can keep it warm: North Spore rates it a beginner species (North Spore booklet), and GroCycle says it fruits faster than any other oyster (GroCycle). The usual catch is a room below North Spore's 70°F (21°C) floor.

    Can you refrigerate pink oyster?

    Pink oyster kits shouldn't go in the fridge (North Spore help center), and neither should its spawn (pink oyster grain spawn guide). Picked mushrooms can, but last only a couple of days (GroCycle).

    Sources

    1. North Spore booklet (cdn.shopify.com/s/files/1/2418/8179/files/FruitingBlockBooklet…)
    2. GroCycle (grocycle.com/how-long-does-it-take-to-grow-mushrooms)
    3. GroCycle (grocycle.com/pink-oyster-mushroom)
    4. UF/IFAS (ask.ifas.ufl.edu/publication/SS662)
    5. UC Cooperative Extension (ucanr.edu/sites/default/files/2012-05/144812.pdf)
    6. North Spore help center (north-spore.reamaze.io/kb/troubleshooting-your-spray-and-grow-kit/sho…)
    7. Fungi Ally (projects.sare.org/media/pdf/F/u/n/FungiAlly_Oyster_booklet_Final…)

    Spotted something out of date? Email support@demetermycolabs.com and we'll fix it.

    More grow guides

    From the blog