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What Are Tissue Culture Plants
Tissue culture plants are lab-grown plants that start in a sterile gel inside a sealed flask. A flask is a small plastic cup or jar. The young plants inside are plantlets. Labs sell them as starter stock for grow-out, not as finished retail plants in soil. Growers also call them TC plants.
Rare Root Labs sells wholesale TC to U.S. growers from Easley, South Carolina. We ship inside the United States only. This page explains what TC is, why growers buy it, how a flask differs from a plug, and how to order from our two lists.
What tissue culture is
Tissue culture is a lab method. Techs take a small piece of a plant and grow it in a sterile vessel. That vessel is the flask. The gel in the flask is agar. Agar is a firm, sterile food gel. Plantlets sit in that gel under high humidity and filtered light, closed off from dust and most pests while they multiply.
A flask is not a finished pot. Plantlets are small. They still need to come out of the gel, get rinsed, and grow in real media. Taking them out of the flask is called deflasking. After that, you wean them from high humidity. That step is acclimation.
If you want the day-of open, rinse, and first potting steps, use Deflasking tissue culture step by step. For the humidity wean, use How to acclimate tissue culture plants.
Why growers buy tissue culture plants
Wholesale buyers use TC as starter stock they can grow into liners or finished plants. Three reasons come up most:
- Clean start. Plantlets grow in a sterile flask. They arrive without soil and without the pests that often ride on field cuttings.
- Uniform batches. A flask of the same line sizes more alike than mixed cuttings. That helps tray fills and retail sets.
- Scale. Labs can multiply a cultivar in flasks without waiting on a large mother-stock block. You can add a variety without tying up bench space first.
TC is still young tissue. You must deflask and acclimate. Plan dome space before the box lands. For problems after planting, see TC plant troubleshooting.
Flask vs plug vs finished plant
These are three different stages. Mix them up and you order the wrong product.
- Flask / TC plantlets. Sealed cup or jar with plantlets in agar. You open it, rinse the gel, pot them, and wean humidity. This is what Rare Root Labs sells on the import TC list and the U.S. stock list.
- Plugs / liners. Rooted plants in trays, already out of gel. They are not flasks. Shop wholesale plugs and liners if you want rooted trays instead of TC.
- Finished plant. A plant already grown in a pot for retail. TC plantlets are not that. You grow them out after they arrive.
How to order from Rare Root Labs
We run two wholesale TC lists. They are not the same stock. Both ship inside the United States only, from Easley, South Carolina.
1. Import TC (cart, $500 mix and match)
This is the main catalog. Shop the cart on the full wholesale TC list or by genus, such as Alocasia and Monstera. Mix and match. Minimum order is $500. Lead time is about 2 weeks.
2. U.S. stock (PO, $250, faster)
This is a different list. It is not the import catalog. Order with a purchase order on U.S. TC stock. Minimum order is $250. Shipping is faster than the import list when items are in stock.
Need rooted trays instead of flasks? Use the plugs page. That path is not TC in agar.
What to do when they arrive
Treat arriving TC as culture-stage stock. Do not set flasks on an open bench and walk away.
- Stage clean trays, fine media, and a humidity dome before you open a flask.
- Deflask: open the vessel, inspect, rinse agar from the roots, and pot at culture depth. Follow deflasking step by step.
- Acclimate: keep high humidity for several days, then vent in steps. Follow how to acclimate tissue culture plants.
- If mold, melt, rot, or stretch shows up, use TC plant troubleshooting.
Quick TC buyer checklist
Before you order / when the box lands:
- [ ] Pick the right list: import TC ($500, about 2 weeks) or U.S. stock ($250 PO, faster)
- [ ] Confirm you want flasks, not plugs
- [ ] Confirm U.S. shipping only
- [ ] Stage trays, fine media, and a humidity dome
- [ ] Deflask: open, rinse agar, first potting
- [ ] Start the acclimation wean (do not cliff-drop humidity)
- [ ] Keep the troubleshooting guide handy
Shop stock while you plan the bench
- Full wholesale TC list (import, $500 mix and match)
- U.S. TC stock ($250 PO, when available)
- Wholesale Alocasia tissue culture
- Wholesale Monstera tissue culture
- Wholesale plugs and liners
- Deflasking tissue culture step by step
- How to acclimate tissue culture plants
- TC plant troubleshooting
FAQ
What are tissue culture plants?
They are lab-grown plantlets that start in a sterile gel (agar) inside a sealed flask. Growers buy them as starter stock and grow them out after deflasking and acclimation.
What are TC plants?
TC plants is short for tissue culture plants. Same thing: young plantlets from a sterile flask, sold for grow-out, not as finished retail pots.
What is a tissue culture flask?
A flask is the small sealed cup or jar the plantlets live in. The gel inside is agar. You open the flask, rinse the gel, and pot the plantlets. That day-of step is deflasking.
Are tissue culture plants the same as plugs?
No. TC plantlets are in flasks with agar. Plugs and liners are rooted trays already out of gel. Shop flasks on the TC lists. Shop rooted trays on the plugs page.
How do you order tissue culture plants from Rare Root Labs?
Use the import catalog for $500 mix-and-match orders (about 2 weeks) at the full TC list or genus pages. Use the U.S. stock page for a $250 purchase order when you want the faster list. We ship inside the United States only.
What do I do when tissue culture plants arrive?
Stage a dome and fine media, deflask (open, rinse, first potting), then wean humidity. Use the deflasking guide for day one and the acclimation guide for the wean.
Do you ship tissue culture plants outside the United States?
No. Rare Root Labs ships wholesale TC within the United States only from Easley, South Carolina.
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