Grow Guide

How to Care for Cannabis Clones: The First 14 Days

Updated 7 min read

A rooted clone is not a finished plant. It is a cutting that has just spent two weeks learning to feed itself, and the first fourteen days in your space decide whether it takes off or sits there looking tired for a month. The good news is that clones are forgiving when you keep the environment steady and resist the urge to do too much.

This guide walks through a day-by-day routine in the grower voice: what to set up before the cuts arrive, what to do in each stretch of the two weeks, and the mistakes that cost the most time. It assumes you are growing where it is legal and that you are 21 or older.

Before the clones arrive

Set up the space first. A clone that lands in a half-ready tent gets stressed twice, once by the move and once by your scramble.

  • Light: dim it or raise it. For young clones you want gentle intensity, roughly the light you would give a seedling. If your fixture dims, set it to 30 to 40 percent. If it does not, raise it until the canopy sits well under the usual distance.
  • Temperature: aim for 72 to 78°F with lights on, and not below the mid 60s at night.
  • Humidity: 65 to 75 percent relative humidity is the target. Clones have a small root system and lose water through their leaves, so dry air is the main enemy of the first week.
  • Medium: pre-moisten your containers or blocks. Dry medium pulls water out of a plug on contact.
  • Clean tools: wipe scissors and containers with isopropyl alcohol. A clean start beats treating problems later, and our guide on quarantining new clones covers how to keep new cuts separate from established plants.

A clone that arrives into steady conditions will almost always outgrow one that arrives into a perfect tent that keeps changing.

Day 0: arrival and acclimation

Unpack the cuts in a calm area out of direct light. Check each one: leaves should be green and turgid, the stem firm, and the plug or cup damp but not soaked. Our guide to spotting a healthy clone explains what to look for if you are still picking cuts.

Do not repot on day zero. Let the cuts sit in their original plug for 24 hours under low light and high humidity. Water lightly only if the plug feels dry and light.

Days 1 to 3: settle and observe

This is the quiet phase. Your only jobs are keeping humidity high, lights gentle and the plug evenly damp.

  1. Check each clone morning and evening. Look for drooping, curling or crispy edges.
  2. Water only when the plug feels noticeably lighter. Overwatering is the most common first-week killer, because small roots sitting in wet medium cannot get oxygen.
  3. Do not fertilize. Plain pH-adjusted water (around 5.8 to 6.2 for coco or hydro, 6.2 to 6.8 for soil) is plenty.
  4. Leave the lower leaves alone. They are still feeding the plant.

A little drooping on day one or two is normal. If leaves stay limp after a full day under steady humidity, check for either a dry plug or a waterlogged one.

Days 4 to 7: first signs of life

By now most clones show new growth at the tip or a fresh pair of leaves unfurling. This is the signal to start loosening the training wheels.

  • Raise light a little each day until you reach a moderate vegetative intensity by day seven.
  • Lower humidity by a few points per day, heading toward 60 percent.
  • Remove the dome if you used one.
  • Begin a very light feed at about a quarter of the recommended strength if you are running a hydro or coco setup. In living soil, plain water is often enough for another week or two.

If you plan to move the clones into larger containers, wait for roots to show at the edges of the plug. Our guide to transplanting rooted clones without shock covers the timing and technique, and the best medium for rooted clones helps you choose what to move into. If a clone droops along the way, read why clones wilt, and if you are rooting your own, see how long clones take to root.

Days 8 to 11: build the root zone

Growth speeds up here. You will see the second and third nodes elongating, and the plant starts to look like a plant instead of a cutting.

  • Water in a rhythm now: thoroughly, then let the medium dry back until a container feels light.
  • Increase the feed gradually, up to half strength.
  • Keep airflow gentle but present. A small fan moving the leaves slightly strengthens stems and lowers the chance of mildew.
  • Scout for pests every other day. Check leaf undersides and the soil surface.

Clones that were grown in the same plug the whole time can become rootbound faster than you expect. If roots circle the plug or poke through the bottom, transplant.

Days 12 to 14: ready for the main event

By the end of week two the clone should have a clear main stem, several nodes and a solid network of white roots. This is the stage where most growers choose between a first topping and a transplant.

  • If roots fill the plug, move up to the next container size.
  • Wait a few days after transplanting before topping. Two stresses at once slows recovery.
  • Move to your normal veg intensity and your standard feed once the plant has new growth after the move.

Don’t rush the topping. A clone that is still building roots needs leaves more than it needs branches.

The mistakes that cost the most time

Overwatering. Small root systems drown easily. Weigh the container, or lift it, and water when it is light.

Light that is too strong too soon. Bleached or taco-shaped leaves in week one usually mean too much intensity, not a deficiency.

Fertilizing early. A young root system burns at doses a mature plant would shrug off. Leaf tips that crisp and turn yellow are a common sign.

Skipping the quarantine. Even clean-looking cuts can carry pests. Keep new arrivals apart from your mother and veg plants for at least two weeks.

Handling too much. Every time you poke a clone, you stress it. Observe more than you touch.

A simple daily checklist

  1. Check temperature and humidity.
  2. Look at leaf posture, color and tips.
  3. Lift or weigh the container before you water.
  4. Scout leaf undersides for anything unusual.
  5. Write down what you changed. If something goes wrong, you will want to know what shifted.

What a good fourteen days looks like

At day fourteen you want roughly double the leaf area you started with, a firm stem, white roots with no brown or slimy sections, and an even, healthy green. A clone that has reached this point is ready for the next chapter of its life, whether that is a bigger pot, a first topping or a spot in your main tent.

If you are still deciding which cuts to run, browse our current clones for lineage, flower time and growth notes, or join the drop list to hear about new keepers first. We sell clones only, never flower, and delivery takes about one month, with a heads-up if an earlier slot opens up.

Quick answers

How much light does a new cannabis clone need?

Keep light gentle for the first week: a PPFD around 100 to 200 for the first few days, rising toward 250 to 300 by the end of week one. An 18 hour on, 6 hour off schedule is the usual veg cycle.

Should I fertilize a rooted clone right away?

Hold off for the first several days, then start at a quarter of the label strength once new growth appears. A rooted clone already carries stored energy and a young root system can burn easily.

How do I know my clone has settled in?

New growth at the top, leaves that stay flat and perky through the light cycle, and white roots reaching the edges of the cup or plug are the three signs most growers look for.

Adults 21+ only, where permitted by law. Clones only, no flower.