The strongest pick in this guide is a rooted clone from a licensed nursery that names the cultivar, identifies the mother plant, and documents pathogen testing for hop latent viroid along with basic root and stem inspections. Four criteria drive that call: verified genetics, pathogen status, root and stem health you can see in person, and a seller who follows your state's plant tagging and transport rules. Everything below explains how those criteria play out across the places clones are actually sold.
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What the four criteria mean at the counter
- Genetics: A specific cultivar name beats a vague label like "indica" or "gas." Ask which mother plant the cutting came from and whether the seller keeps mothers in a separate room from flowering plants.
- Pathogen status: Hop latent viroid (HpLVd) can sit in a plant without visible symptoms. Nurseries that test batches and share results remove the biggest gamble in clone buying.
- Visible health: White, branching roots, firm green stems, and clean leaf undersides matter more than plant height.
- Compliance: Licensed sellers attach plant tags and keep records, and they can tell you the plant count rules that apply to you.
Option 1: Licensed cannabis nurseries
Nurseries that propagate for the licensed market are the closest thing to a known quantity.
How to Transport Cannabis Clones Safely
- Pros: Named cultivars, mother plant records, batch testing, and staff who can answer questions about vigor and flowering time.
- Cons: Higher cost per clone, shorter cultivar menus, and purchase sometimes ties to a licensed account or medical card.
Best for: growers who need reliable genetics and cannot afford to lose a cycle to a hidden viroid or a mite infestation.
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Option 2: Dispensary clone drops and vendor days
Retail shops in some states host scheduled clone drops, often from a single nursery.
- Pros: Walk in without an account, inspect plants before paying, and compare several cultivars in one trip.
- Cons: Stock rotates fast, testing paperwork may not travel with the plant, and trays that hold many cultivars can carry pests between them.
Best for: home growers in states that permit retail clone sales and who can show up early on drop day.
Option 3: Unrooted cuttings by mail
Unrooted snips arrive as bare stems that you root yourself.
- Pros: Lower cost, wider cultivar access, and light packaging that ships well where in-state shipping is legal.
- Cons: Rooting is on you, transit stress weakens weak cuts, dead on arrival happens, and crossing state lines is illegal under federal law.
Best for: experienced propagators with a clean clone room, rooting hormones, and a heat mat.
Option 4: Friends, clubs, and gray market cuttings
- Pros: Cheap or free, a grower you can question in person, and cultivar history that may be honest.
- Cons: No testing, no recourse if problems show up, real pest and viroid risk, and legal exposure in states that cap plant counts.
Best for: growers who already trust the source garden and can quarantine a new plant for a full month.
Pathogen screening and why HpLVd gets its own section
Hop latent viroid spreads through cuttings and contaminated tools. Infected plants often look normal, which is what makes it expensive: you can veg a plant for weeks before vigor drops and yield suffers. Ask for a lab name, a test date, and the batch the clone came from rather than a verbal all clear. Powdery mildew, russet mites, and root aphids also ride along on clones. A cheap jeweler's loupe and a bottle of isopropyl alcohol for tool dips solve more problems than any additive.
Inspection checklist the day you buy
- Flip the leaves and check undersides for webbing, spots, and moving insects.
- Slide the root ball out if the seller allows it. Roots should be white to tan and holding the media together.
- Look at the stem base for brown, soft, or sunken tissue.
- Confirm the cultivar name appears on the tag or receipt.
- Ask for the test date, not just a pass or fail statement.
- Make sure the clone gets bagged or boxed so the roots and leaves do not crush on the ride home.
Quarantine and the first two weeks
Keep new clones away from flowering rooms and mother plants for at least 14 days. Use a separate tray, separate tools, and gloves you only wear in that space. Water with a mild nutrient solution and treat new growth as the first sign the plant has settled into your environment. If you see mites, mildew, or stalled growth, isolate further and test before the plant goes anywhere near your keeper genetics.
Legal limits and moving plants
State programs differ on plant counts, whether clones count toward the limit, and whether retail clone sales are allowed at all. Federal law still classifies cannabis as illegal, so carrying a plant across a state line creates risk even when both states run medical or adult use programs. Keep the seller's tag and receipt with the plant, and know your count before you add another cultivar to the tent.