Grow Sow Greener
Sky Blue Oyster Liquid Culture -10ml Syringe
Sky Blue Oyster Liquid Culture -10ml Syringe
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Sky Blue Oyster Liquid Culture – 10 ml Sterile Syringe
Species: Pleurotus ostreatus var. columbinus | Prepared in the UK
Sky Blue Oyster produces vivid blue pins that mature to cool steel‑grey caps under lower temperatures. Dense clusters, quick colonisation and attractive colour make it a favourite for cool‑season indoor blocks and unheated grow rooms.
About This Culture
This 10 ml syringe contains actively growing Sky Blue Oyster mycelium suspended in nutrient broth, produced under sterile workflow. Inoculate grain, transfer to agar or expand into fresh liquid culture in clean conditions.
Included
- 1 × 10 ml Sky Blue Oyster liquid culture syringe
- 1 × sterile needle
- 1 × alcohol wipe
- 1 × natural hemp bag (outer packaging)
Reusable Hemp Bag
The syringe and wipe ship inside an undyed hemp bag. After pasteurising, you can fill the bag with a substrate of your choice—such as coffee grounds mixed with sawdust—to create a small, plastic‑free mini grow kit.
Use
- Shake to disperse mycelium.
- Clean the injection point with the alcohol wipe.
- Attach sterile needle; flame‑sterilise if working outside filtered air.
- Inject 1–2 ml per grain jar or about 3–5 ml per 1 kg grain bag.
- Incubate grain at 20–24 °C until colonised (≈10–12 days); shake once at about 40 % if desired.
- Spawn to supplemented hardwood sawdust (e.g., 50 % sawdust : 50 % soy‑hull blend) at 10–20 % spawn rate.
- Fruit blocks at 15–18 °C with high humidity and fresh‑air exchange for best blue colour.
Storage
Refrigerate at 2–6 °C on arrival. Best used within 2–3 weeks; generally viable up to ~2 months unopened. Do not freeze.
Batch Notes
- Produced in small lots; visually checked on agar before dispatch.
- Light sediment is normal—shake to resuspend.
- A drop to agar is recommended if you wish to confirm purity before large inoculations.
Lead‑time: Liquid cultures are prepared in small batches. If this item is on back‑order, please check the current lead‑time before ordering.
Shipping
Shipping
Delivery Costs
Our shipping is broken down into two categories and are dispatched the same or next day as standard.
1. Unlimited "Small" (Garden) Seed Packets:
- Including wooden plant markers and sprouting bags.
- £1.99 - Standard Delivery 2 - 4 business days.
- £4.90 Express Delivery 1 - 3 business days
2. Everything Else - Sprouting and Microgreen Seeds, Growing Equipment, Gifts and Grow Kits:
UK Mainland.
- £3.85 - Standard Delivery (2 - 4 business days) on orders between 0 and 2kg.
- £6.50 - Next Day Courier Service on orders 0 - 4.5kg.
- £8.95 - Next Day Courier Service on orders over 4.5kg.
- Contact us for a quote on orders over 26kgs.
Ireland, Northern Ireland, Isle of Man, Guernsey and Jersey.
- £9.45 - Standard Delivery (2 - 4 business days) on orders between 0 and 2kg.
- £23.50 - Standard Delivery on orders 2kg - 26kg.
- Contact us for a quote on orders over 26kg.
The EU, Switzerland and Rest of World.
Get in touch for equipment sales to the EU and the rest of the world for a competitive shipping quote. Unfortunately we cannot yet post seeds outside the UK.
Delivery and Packaging
All products are packaged plastic free as standard. Your garden seeds are sealed for freshness inside white glassine envelopes which are a water/vapour resistant compostable paper product whilst your Microgreen and Sprouting Seeds arrive in resealable zip lock pouches made from GMO free vegetable starch which are further heat sealed to ensure these great products reach you safely!
Returns Policy
Returns Policy
We hope you are loving your purchase however we understand that sometimes things don't go as planned and returns and refunds are necessary. Please refer to the following return and refund policies at growsowgreener.co.uk.
My product is damaged defective or you shipped me the wrong product.
We're sorry about that and understand your frustration! We would love to offer you a refund or a replacement. Please contact us at hi@growsowgreener.co.uk within 30 days of purchase for a full refund or replacement.
I ordered the wrong product or simply changed my mind.
No worries, we will refund you the full amount (minus the shipping charges) provided the items are returned in new condition and in original packaging. Once received we will issue your refund however you will be responsible for return shipping costs for non defective products.
Please post to:
Grow Sow Greener
RETURNS (order number)
5 Longfields
West Alvington
Devon TQ73QG
UK
Guaranteed to grow promise.
Should you have absolutely any problems issues or difficulties getting your seeds to germinate or problems/queries regarding our grow kits or equipment, please get in touch at hi@growsowgreener.co.uk and we will strive to help you out via email, call or video call.
All our seeds and products have been tested here by us however if we still cant help you get growing we will offer a free replacement.
Unfortunately, we cannot accept returns on gift cards.
