expanding your greenhouse: getting started with …...greenhouse growers insurance why choose...

EXPANDING YOUR GREENHOUSE: GETTING

STARTED WITH HEMP

1/21/2020

TODAY’S AGENDA

2

Webinar SpeakersModerator 1. About GrowPro

2. Understanding What is Hemp

3. Production Requirements to Consider

4. Cycle of Production

5. Best Practices for Production

6. Q&A

3

Greenhouse Growers Insurance

Why Choose GrowPro?

• 30 years of industry experience

• Carrier rated A+, financial size XV by A.M. Best

• Industry experts for risk control guidance and

proper valuation of operations & equipment

• Competitive rates & flexible payment plans

• Expert claims handling

• World-class risk control services

© 2020 Griffin Greenhouse Supplies, Inc.

Classification: For Internal Use Only Altogether. Better.

Greenhouse Production of Hemp

What you need to know for success

Peter Armando, CEA Business Developer

January 21, 2020

NIP Group Webinar


Classification: For Internal Use Only

Horticultural hemp production

6 © 2020 Griffin Greenhouse Supplies, Inc.


Hemp is cannabis, but it is not marijuana• Cannabis sativa, C. indica and C. ruderalis

• Defined by THC content

► Hemp < 0.3% THC

► Marijuana > 0.3% THC

• Four primary uses for industrial hemp

► Fiber (textile, paper)

► Pulp (building materials)

► Seed/Oil (protein, feed, food, hygiene, fuel, solvent, etc)

► Flower (CBD: flower, oil, distillate, isolate)



Cannabis growers speak a different language

Traditional horticulture Hemp

Production Cultivation

Fertilizer Nutrients

Water soluble fertilizer Salts

Liners Clones

Cuttings Clones

Propagation Cloning

Pre-initiation, bulking Vegetative, veg

Stock plants Mother stock, moms

Black cloth Light deprivation, light dep

Soft chemistry Biopesticide

Biological control agents Bugs



Cannabis growers speak a different language

Traditional horticulture Hemp

High salts damage Nitrogen toxicity

Greenhouse Indoor

Cultivar Strain

Day neutral Auto flowering

Nutrient competition reducing uptake Lock out

Traits (physical characteristics) Phenotype



Hemp production requires photoperiod control

• Hemp is a short day plant

► Utilize light deprivation to exclude light (black cloth)

► Curtains can be installed truss to truss

► Assure coverage of sidewalls, door openings and exhaust fans

• Maintain vegetative growth with long days

► 18 hours of light

► Night interruption

► LED screw in replacements

• Greenhouse production outside of summer requires additional intensity for flowering

► Increase intensity or day length extension

► High Pressure Sodium – Double ended and 1000W adjustable

► Ceramic Metal Halide

► LED – Fixed spectrum and programmable spectrum



Hemp physiology should be understood

• Dioecious – male and female reproductive organs on different plants

• Hermaphrodite – female plants with pollen structures

• Sinsemilla – pollination free, female flowers with high secondary compounds



Hemp production needs are based on final product

• Seedling and liner production

• Stock plant production

• Seed production (feminized seed)

• Flower production



Hemp production cycles

Photoperiod Field Greenhouse

Seedling LD n/a 21-28 days

Initial stock selection LD/SD proof n/a 4-8 weeks

Clone(propagation)

LD n/a 14-21 days

Veg(vegetative growth)

LD 8-12 weeks Varies – 7-21 days common

Flower SD 8+ weeks* 8-10 weeks*

*must be managed based on THC levels and seed shatter properties



Greenhouse production allows year round cropping

2-3 weeks 1-2 weeks 8 weeks

12-13 week cycle

8-9 week turn on primary space



Seedling production: best practice starts with feminized seeds

• Crop time: 3-4 weeks from sow

• Sow in a 288 cell tray

► 70-75°F bottom heat

► ½” deep, coarse vermiculite cover

► Germinates in 5-7 days

• Fertility

► Use low starter charge in media

► Begin feeding with true leaves

• Build plant prior to transplant

► Transplant to 50 or 72 cell tray

► Pinch prior to transplant

► Maintain 12” height or less



Vegetative propagation ensures 100% female crop

• Crop time: 2-3 weeks

• Requires female stock plants (mothers)

• 4-5” tip cuttings preferred

• Utilize rooting hormone

• Rockwool, engineered or stabilized

media

• Proper humidity required

► Mist system

► Humidity domes

• Bottom heat at 70-75°F

• Provide long days (18 hours)

• Fertilize when roots start to develop,

approx. 8 days



Stock production requires process

• Expect approx. 50% male plants from non-feminized seeds

• Track all stock plants with unique ID

• Stock must be grown under long days

• Bulk plants until ten cuttings supported

• Label cuttings to match stock ID

• Root cuttings and grow under long days

• Induce flowering under short days

• Identify males and females

• Discard males and associated cuttings

• Continue production of mother stock under long days



Trellis systems support tall crops through harvest

• Use with all crops over 24” tall

• Prevents branches from breaking

• Permanent framework attached to bench

• Trellis netting attached to the frame

► Single crop use

► Sold in rolls, 4-6’ wide



CBD production requires growing through flower

• Focus on high quality flower

• Optimize cultivation techniques to achieve highest CBD levels

• Finished product: high quality flower or concentrate

• Additional processing for high end oil, isolate and distillate



Greenhouse production brings advantages

• Complete environmental control

• Multiple crops per year vs. single field planting

• Can increase CBD production by pruning plants longer in vegetative stage

• Easier to control pests

Remember the vents!!



From products to knowledge, Griffin can help with all stages of hemp production.



Let us know how we can help!

By email

Gregg Urban, CEA Sales Manager – [email protected]

General team - [email protected]

By phone

Gregg Urban, CEA Sales Manager – 860-819-1230

CEA customer service – 800-888-0054 ext 89199

On the web

griffins.com

Onliant.com

Q&A

28

Webinar SpeakersModerator 1. About GrowPro

2. Understanding What is Hemp

3. Production Requirements to Consider

4. Cycle of Production

5. Best Practices for Production

6. Q&A

expanding your greenhouse: getting started with …...greenhouse growers insurance why choose...

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