Grower Glossary – TUpdated 9 days ago

T

“T” takes you deep into the chemistry of cannabis — from terpenes and trichomes to temperature control and training techniques. Learn the language of potency and plant structure.

Taproot

The primary root that grows directly downward from a seed, anchoring the plant and absorbing nutrients.
Grower Slang: “Main root.”
Cronk Tip: Avoid damaging the taproot when transplanting seedlings — it’s the plant’s foundation for nutrient uptake and strength.

TDS (Total Dissolved Solids)

Measures the total concentration of dissolved minerals in a nutrient solution, expressed in PPM.
Grower Slang: “Feed strength.”
Cronk Tip: Maintain ideal PPM ranges:
Seedlings 300–500 | Veg 800–1200 | Bloom 1000–1600

Temperature

The degree of heat in the grow environment, affecting growth rate, metabolism, and resin output.
Grower Slang: “Temps.”
Cronk Tip: Maintain:
Veg 24–28 °C (75–82 °F) | Flower 22–26 °C (72–78 °F)

Temperature Stress

Stress caused by extreme heat or cold.
Grower Slang: “Heat stress,” “cold shock.”
Cronk Tip: Use fans, intake filters, and proper insulation to stabilize your grow.

Tensiometer

A device that measures soil moisture tension — how hard roots work to draw water.
Grower Slang: “Moisture gauge.”
Great for dialing in irrigation and preventing overwatering.

Terp Bomb (Slang)

Grower slang for flower bursting with intense aroma and flavor.
Grower Slang: “Loud,” “stanky.”
Cronk Tip: Healthy microbes + proper harvest timing = explosive terpene profiles.

Terp Lock (Slang)

Grower slang for buds sealed too wet, trapping moisture and damaging terpenes.
Grower Slang: “Wet jar,” “terp lock.”
Cronk Tip: Burp jars daily for 10–14 days to release moisture and preserve terps.

Terpenes

Aromatic compounds that give cannabis its scent, flavor, and character.
Grower Slang: “Terps.”
Cronk Tip: Boost terpene production with proper drying, Sticky Bandit, and silica support.

Terpene Profile

The unique blend of terpenes defining each strain’s aroma, flavor, and effects.
Grower Slang: “Terp mix.”
Cronk Tip: Cool lights-off temps and slow curing preserve delicate aromatics.

Test Run

A trial grow or nutrient mix test before full production.
Grower Slang: “Trial run,” “tester.”
Cronk Tip: Always record EC, pH, and environmental data during trials.

THC (Tetrahydrocannabinol)

The primary psychoactive compound in cannabis responsible for euphoria and potency.
Grower Slang: “THC,” “the high.”
Cronk Tip: Stable temps and balanced nutrients preserve THC during bloom and cure.

THCA (Tetrahydrocannabinolic Acid)

The non-psychoactive precursor to THC that activates with heat (decarboxylation).
Grower Slang: “Raw THC.”
Found in fresh or unheated flower.

THC Percentage

The potency measure of THC by dry weight.
Grower Slang: “THC level.”
Top-shelf cannabis typically tests 20–30 % THC with proper curing and nutrition.

Thripe / Thrip

Tiny insect pests that feed on leaf tissue, leaving silver streaks.
Grower Slang: “Thrips,” “leaf scratchers.”
Cronk Tip: Neem oil, sticky traps, and beneficial mites prevent infestations.

Thinning

Removing excess leaves or shoots to improve airflow and light penetration.
Grower Slang: “Leaf pull.”

Threshold

The environmental limit a plant can handle before stress.
Grower Slang: “Limit line.”
Cronk Tip: Monitor VPD, EC, and temperature to stay within safe ranges.

Tiedown (LST)

A low-stress training technique using ties to bend and shape branches.
Grower Slang: “Tie-down,” “bend training.”
Cronk Tip: Use soft ties and adjust gradually to prevent splits.

Tilth

The physical condition of soil — structure, aeration, and texture.
Grower Slang: “Soil feel.”
Healthy tilth equals healthy roots.

Timer

A device that automates lights or irrigation cycles.
Grower Slang: “Cycle timer.”
Cronk Tip: Double-check after power outages to avoid light leaks.

Tissue Culture

A sterile lab propagation method using small plant cells.
Grower Slang: “Microclone.”
Preserves genetics long-term and eliminates pests or viruses.

Topping

Cutting the main stem to create multiple colas and even canopy growth.
Grower Slang: “Top,” “snip.”
Cronk Tip: Top after 4–6 nodes; allow 5–7 days recovery before flower.

Torch (Slang)

A butane torch used for dabs or sterilizing tools.
Grower Slang: “Dabber torch.”

Total Dissolved Solids (See TDS)

Alternate term for TDS measurement.

Transpiration

The release of water vapor through leaf stomata.
Grower Slang: “Plant sweat.”
Cronk Tip: Balanced humidity and VPD maintain proper nutrient flow.

Transplant

Moving a plant into a larger pot or medium.
Grower Slang: “Up-pot.”
Cronk Tip: Water immediately and use Monkey Juice for root recovery.

Transplant Shock

Stress from disturbed roots during transplant.
Grower Slang: “Setback.”
Cronk Tip: Armadillo Armour and Monkey Juice reduce stress.

Trichomes

Tiny resin glands containing cannabinoids and terpenes.
Grower Slang: “Frost,” “crystals.”
Cronk Tip: Low humidity and silica feeding maximize trichome density.

Trichome Heads

Bulbous tops of trichomes where resin and terpenes are stored.
Grower Slang: “Heads.”
Clear = early | Cloudy = peak | Amber = sedative.

Trim

Removing leaves from buds after harvest.
Grower Slang: “Manicure.”
Cronk Tip: Trim slightly tacky buds for clean cuts.

Trim Bin

Tray or workstation that collects trichomes during trimming.
Grower Slang: “Kief catcher.”

Trim Jail (Slang)

Grower slang for long trimming sessions.
Grower Slang: “Scissor prison.”
Cronk Tip: Use gloves, stretch often — sticky resin builds fast.

Trimming (Wet vs Dry)

Wet trim = immediate post-harvest; dry trim = after drying.
Grower Slang: “Wet trim,” “dry trim.”
Cronk Tip: Dry trim = better terpenes; wet trim = faster workflow.

Triploid (Genetic Term)

A plant with three sets of chromosomes — often sterile and used in breeding.
Grower Slang: “3-set.”
Triploid cannabis may produce seedless, higher-yield hybrids.

Tropism

Directional growth response to stimuli such as light or gravity.
Grower Slang: “Plant response.”
Includes phototropism (light) and gravitropism (gravity).

Type I Cannabis

High-THC, low-CBD chemotype — dominant in recreational genetics.
Grower Slang: “THC-dominant.”
Cronk Tip: Optimize bloom EC (1.8–2.2) and temps (20–26 °C) for max resin output.

Type II Cannabis

Balanced chemotype containing both THC and CBD in near-equal ratio.
Grower Slang: “Balanced strain.”
Ideal for medical users seeking mild euphoria and relief.

Type III Cannabis

CBD-dominant chemotype with trace THC (< 0.3 %), legally classified as hemp in many regions.
Grower Slang: “CBD strain,” “hemp type.”
Cronk Tip: Use PuurOrganics for clean, compliant CBD production.

Trunk

The plant’s main stem that supports all branches.
Grower Slang: “Main stalk.”
Thick trunks move nutrients efficiently and improve plant stability.

Turgor Pressure

The internal water pressure keeping leaves firm.
Grower Slang: “Plant pressure.”
Low turgor = droop; maintain hydration and proper VPD.

Turbidity

Cloudiness of nutrient solution caused by undissolved particles or microbes.
Grower Slang: “Cloudy mix.”
Cronk Tip: Keep reservoirs clean and aerated.

Turnover

Time between harvest and the next crop.
Grower Slang: “Cycle time.”
Cronk Tip: Clean and reset rooms between runs for consistent results.

Twine / Ties

Materials used to secure or support plants.
Grower Slang: “Plant ties.”
Cronk Tip: Use soft, adjustable ties to prevent stem bruising.

Two-Part Nutrient

A feeding system split into Part A and Part B to prevent precipitation.
Grower Slang: “A/B feed.”
Cronk Tip: Bonnie & Clyde Autoflower Line = Cronk’s premium two-part system.