The single most important step when buying cannabis clones is to inspect the plant in person before money changes hands. Look for upright growth, uniform leaf color, and a white, fuzzy root mass that fills the container without circling. A clone that passes a close visual and tactile exam saves weeks of recovery time and reduces the risk of bringing pests or diseases into your garden.
Cannabis Clone Health Inspection Checklist Before You Buy
What to Look For in a Cannabis Clone
A healthy clone shows several clear signals. Check these areas before you commit.
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Health and Vigor
A healthy clone stands on its own without support. Leaves should be flat, not curled or cupped, and show a consistent green from top to bottom. Yellowing lower leaves often signal nitrogen deficiency or root problems. Avoid any clone with drooping stems, necrotic spots, or a pale, washed-out look.
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Root System
Roots tell the story of a clone's care. Slide the plant from its pot if the seller allows. You want to see white or creamy white roots that hold the growing medium together. Brown, mushy, or foul-smelling roots indicate root rot. A few roots circling the bottom are normal, but a dense, pot-bound mass means the clone sat too long in a small container.
Genetics and Lineage
Ask for the specific cultivar name and breeder. A reputable seller tracks genetics and can tell you the parent plants, flowering time, and expected growth pattern. Clones from unknown sources may carry viruses like hop latent viroid, which spreads through cuttings and reduces yields. If the seller cannot name the breeder or provide testing history, walk away.
Pest and Disease Inspection
Inspect the undersides of leaves, stem nodes, and the surface of the growing medium. Look for spider mites (tiny specks and webbing), thrips (black droppings and silvery streaks), and fungus gnats (small flies near the soil). Powdery mildew appears as white, flour-like patches on leaves. Any sign of pests or mold means the clone should be quarantined or rejected.
Parameter Bands for Healthy Clones
Use these measurable ranges to judge a clone before you buy. These bands apply to typical rooted cuttings in a 2- to 4-inch container.
- Height: 4 to 8 inches from the base of the stem to the top of the canopy.
- Stem diameter: 2 to 4 millimeters, firm but not woody.
- Leaf color: Uniform medium green, no yellowing between veins.
- Root mass: White roots visible at drainage holes, filling 60 to 80 percent of the container.
- Node spacing: 1 to 2 inches between nodes, indicating active growth without stretching.
- Container size: 2 to 4 inches, with no roots growing out of the bottom or circling tightly.
Common Pitfalls When Buying Clones
Several mistakes appear again and again. Avoid these traps.
- Buying from an untraceable source. Without a breeder name and testing history, you risk viral contaminants.
- Skipping quarantine. Always isolate new clones for 7 to 14 days before adding them to your main growing area.
- Ignoring root health. A clone with circling or brown roots will stall in flower.
- Choosing size over quality. A taller clone is not better if it is leggy or pale.
- Failing to ask about pest history. A seller who hesitates or cannot answer may have a hidden problem.
FAQ: Cannabis Clone Buying
How do I know if a clone is rooted?
Give the stem a light pull. If it resists, roots have formed. Visible white roots at the drainage holes are a clear sign. Unrooted cuttings will move freely in the medium.
Should I buy clones online or in person?
In-person inspection is best. Online sellers that ship clones require you to trust their photos and descriptions. If you cannot inspect the plant before purchase, choose a seller with a clear return policy and verified reviews.
What is the ideal time to transplant a clone?
Transplant when roots reach the sides of the container but before they circle the bottom. In a 2-inch pot, that is usually 7 to 14 days after rooting. Waiting longer causes root stress and slows new growth.
Can clones carry viruses?
Yes. Hop latent viroid and cannabis mosaic virus spread through cuttings. Clones from tested, clean mother plants are your best defense. Ask for test results or buy from a nursery that tests its stock often.