Should You Lollipop a Crowded Outdoor Cannabis Plant?
The situation
An outdoor plant in a 30-40 gallon coco container had a broad, level canopy with plenty of productive tops. LST, or bending and tying branches to spread them out, had given those tops good space. The grower wondered whether to lollipop it.
The photos showed fresh white pistils and swelling flowers, signs of active flowering despite the journal's vegetative-stage label. Lower growth was crowded and shaded. The day was clear but cool at 59°F, with 86% relative humidity.
The diagnosis
The plant looked healthy overall: upright flowers, green flower leaves, and no widespread yellowing or drooping. Fine pale speckles on mature leaves did not form the organized old-leaf or new-leaf pattern expected from a mobile or immobile nutrient shortage. Surface residue or early mite or thrips feeding remained possible.
Crowding in humid weather can hold moisture around flowers. A full lollipop would remove healthy bud-bearing growth and add stress during flowering. Selective cleanup addresses the shaded bottom while preserving the canopy that is already working.
The solution
- After morning dew dries, sanitize scissors. Remove dead leaves and the weakest fully shaded shoots from the bottom 20-25% of the plant.
- Stop before removing 10% of total foliage. Keep strong bud-bearing branches and existing LST ties.
- Give the plant 5-7 days without more cutting.
- Check the undersides of 10 speckled leaves for moving pests, eggs, or dark feeding marks before treating the speckles.
- Caterpillar damage was already confirmed in this case. Apply BT according to its label during a dry late afternoon, taking care not to leave dense flowers wet.
How to avoid this
- Keep lower growth open enough for air to pass through, especially when humidity stays high.
- Inspect leaf undersides regularly; faint speckles can appear before pests are easy to spot.
- Judge pruning by light and airflow, not by a rule to strip every lower branch.
- Watch crowded flowers closely for browning or soft tissue as they swell.
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