Vegetative
Veg is where you build the frame every bud will hang from — keep her alive and shape her to fit.
This is the growing-up between seedling and flower, and it’s where the real action is. Read how your plant grows, train her early, and flowering becomes mostly maintenance.
What good looks like
What veg looks like, week by week
- Wk 1
Establishing
Roots take hold and white roots fill the pot. Growth is steady, leaves perky, colour even. Pot her on before she gets rootbound, not after.
- Wk 2
Reading her build
Internodes tell you everything — tight and compact means enough light, long and stretchy means she’s reaching or she’s a leggy sativa. Read the build now and your training plan writes itself.
- Wk 3
Rapid growth
She’s stacking nodes fast and building the body she’ll flower. Fan leaves stay on — they’re the engine powering all of it. Keep feeding, keep her lit, keep room at the roots.
- Wk 4
Training window
Once she has five or six nodes the stems are young and flexible. Top at the fourth or fifth node, then tie the leaders out low and flat. Autos get LST only, never topping.
- Wk 5+
Ready to flip
Canopy is flat and even like a green table, every bud site the same distance from the light. Photoperiods: flip when she’s big enough, remembering she’ll near double in the stretch.
The numbers that matter
The numbers that matter in veg
Do this
The vegetative checklist
- Pot her on before she’s rootbound — a plant that runs out of root space in veg never makes up the lost time.
- Run photoperiods at 18 hours of light, 6 off, until you’re ready to flip.
- Read the internode spacing in week two so you know how hard she’ll need training.
- Leave the fan leaves on — they’re her solar panels and they’re building the plant you’ll flower.
- Start LST once she has five or six nodes, while the stems still bend instead of snap.
- Use soft wire or fabric ties, bend gently, and keep the canopy flat like a green table.
- On photoperiods, top at the fourth or fifth node, then tie the two leaders out in opposite directions.
- On autoflowers, LST only — never top, and keep your hands off for the first month.
Watch for
Catch these early
The early sign, what it means, and the fix. The full stories are in the book.
Growth stalls for a week or two despite good colour, light and water.
She’s likely rootbound — the roots are circling a too-small pot and can’t expand.
Fix: Tip her out and check; if the roots look like a ball of string, pot her on into more room.
📖 A lad brought one into the shop that hadn’t grown in two weeks — she wasn’t sick, she was stuck. The full story →
A young plant growing straight up with long gaps between branches.
She’ll near double in the stretch and run out of headroom unless you shape her in veg.
Fix: Bend the tallest stems horizontal and tie them low so the lower branches catch up and the canopy flattens.
📖 Dave’s sativa touched the tent ceiling and bleached the top buds — fixed at 2am with shoelaces. The full story →
The urge to top or heavily train an autoflower like the photoperiod tutorials show.
An auto has a fixed clock and can’t recover from a cut before it flowers around week three.
Fix: Stick to gentle LST on autos, bend early, and stop once the stretch begins.
📖 The Eager Surgeon topped his auto on day fourteen and pulled seven grams from a plant built for ten times that. The full story →
A stem snapping or tearing part-way through while you’re bending it.
It went woody before you trained it, so it split instead of curving.
Fix: If a strip of bark still connects the halves, wrap it snug with micropore tape and leave it — it heals back stronger.
📖 The Sculptor waited too long and tore a branch; the tape saved it. It’s a tax, not a funeral. The full story →
Questions
Vegetative FAQ
How long should I veg for before flipping to flower?
Around four weeks is typical for a photoperiod, but the clock is in your hands — if she needs another week to fill out, give it to her. Just remember she’ll add 50-100% of her height in the stretch, so flip with headroom to spare.
Should I remove fan leaves in veg to get more light to the plant?
No. In veg those big fan leaves are her engine for photosynthesis — they’re powering the whole plant. Stripping them is a flowering-stage decision for later, not a veg one.
Can I top my autoflower like I would a photoperiod?
Better not to. An auto flowers on age, not light, usually around week three or four, and there’s no extending the clock to let her recover from a cut. Use gentle LST instead, bend early, and stop once the stretch starts.
When can I start low stress training?
Once she has five or six nodes. The stems need to be young and flexible — leave it too long and they go woody and snap. Bend the tallest stem horizontal, tie it down with soft ties, and keep the canopy flat.
I grew five seeds from the same pack and they all came out different — did I get fake seeds?
No, that’s phenotype variation and it’s normal. Like siblings from the same parents, each seed carries a range of traits. Read each plant in veg as itself, not as the photo on the website, and train the one that’s actually in your tent.
The whole story is in the book
Grow Good Bud walks you through reading how your plant grows and training her to fit — so you’re shaping a green table in veg instead of fighting the ceiling with shoelaces at midnight.
The web gives you the lesson; Grow Good Bud keeps the scars. The kit to grow it is at Dublin Indoor Gardening.