Advanced Dogwood Production: Nursery Systems and Landscape Installation

Commercial Dogwood Production

Dogwoods remain important nursery crops despite anthracnose challenges. This advanced guide covers production systems, disease management at scale, and professional landscape installation techniques.

Industry Overview

Market Position

Factor	Status
Demand	Steady for quality stock
Price point	Premium ornamental
Disease concerns	Major factor in production
Species shift	Increasing kousa and hybrids

Production Segments

Segment	Products	Market
Liner production	1-3 gallon	Wholesale re-growers
Container finished	5-25 gallon	Retail, landscape
Field B&B	1-3" caliper	Landscape trade
Specimen	3"+ caliper	High-end landscape

Propagation Operations

Seed Production

Processing workflow:

Step	Method	Notes
Collection	Hand harvest when ripe	September-October
Depulping	Machine or acid treatment	H2SO4 10 min for C. florida
Cleaning	Float separation	Remove debris
Stratification	Polyethylene bags in cooler	Monitor for mold
Sowing	Outdoor beds or flats	March-April

Stratification protocols:

Species	Treatment
C. florida	60 days warm + 90-120 days cold
C. kousa	90-120 days cold only
C. mas	120+ days cold

Cutting Propagation

Optimal conditions:

Parameter	Specification
Cutting type	Softwood to semi-hardwood
Timing	Late May - early July
Hormone	IBA 5000-10000 ppm
Medium	Perlite:peat 1:1
Humidity	95%+ (mist system)
Bottom heat	70-75°F
Rooting time	6-10 weeks

Success rates by species:

Species	Success Rate
C. kousa	70-90%
C. florida	50-70%
Hybrids	60-80%

Grafting Operations

Bench grafting (primary method):

Parameter	Specification
Timing	January-March
Understock	1-2 year seedlings, pencil size
Technique	Side-veneer or whip-and-tongue
Graft position	1-2" above soil
Post-graft	Polyhouse, 50-60°F, high humidity

Field budding:

T-budding in late summer
Lower cost per plant
Higher mortality risk

Container Production

Growing Systems

Size	Time to Finish	Market
1 gallon	1 year	Liner
3 gallon	1-2 years	Retail, regrow
7 gallon	2-3 years	Retail
15-25 gallon	3-5 years	Landscape

Container Culture

Media requirements:

Well-drained (40-50% air space)
pH 5.5-6.5
Low soluble salts
Example: Pine bark 80%, peat 15%, sand 5%

Fertility program:

Stage	N Rate	Method
Establishment	100 ppm	Constant liquid feed
Active growth	150-200 ppm	Constant liquid feed
Hardening	Reduce to 50 ppm	September
Alternative	Controlled release	18-20 g/gallon

Irrigation:

Cyclic irrigation preferred
2-4 applications/day in summer
Monitor for wet feet
Reduce frequency in fall

Winter Protection

Zone	Protection Needed
7+	Minimal
5-6	Consolidate, white poly cover
<5	Heated overwintering structure

Field Production

Site Requirements

Factor	Optimal
Soil pH	5.5-6.5
Texture	Loam to sandy loam
Drainage	Excellent
Organic matter	2-5%
Irrigation	Available

Spacing

Target Size	In-row	Between rows
1-1.5" caliper	6 ft	12 ft
1.5-2" caliper	8 ft	14 ft
2"+ caliper	10 ft	16 ft

Field Cultural Practices

Irrigation:

Drip preferred for disease management
1-1.5 inches weekly
Avoid overhead in spring

Fertility:

Spring application
2-3 lbs actual N per 1000 sq ft
Avoid excess—promotes disease

Training:

Central leader development
Eliminate competing leaders
Develop scaffold branches

Disease Management at Scale

Integrated Anthracnose Management

Prevention program:

Timing	Action
Site selection	Open, well-drained locations
Cultivar selection	Resistant varieties
Spacing	Adequate air circulation
Irrigation	Drip only; avoid wetting foliage
Sanitation	Remove fallen leaves annually

Monitoring program:

Frequency	Focus
Weekly (spring)	Leaf spots, wet weather
Biweekly (summer)	Twig dieback
Monthly (fall)	Canker development

Chemical program (if warranted):

Timing	Product Class	Notes
Bud break	Chlorothalonil	Preventive
7-14 day intervals	Rotate products	Through wet spring
As needed	Propiconazole	Curative

Scouting Protocol

Symptom	Rating	Action
<5% leaves affected	Low	Monitor, cultural controls
5-20% affected	Moderate	Fungicide program
>20% affected	High	Intensive management, cull if severe

Quality Grading

Container Standards

Grade	Criteria
Premium	Full, symmetrical; no disease; heavy root
#1	Minor imperfections; healthy
#2	Moderate defects; marketable
Cull	Unmarketable

Field Grading (B&B)

Factor	Premium	Standard
Form	Symmetrical, natural	Minor asymmetry
Branching	Well-distributed	Acceptable structure
Trunk	Straight, defect-free	Minor wounds healed
Root ball	Compact, well-rooted	Adequate for size

Landscape Installation

Site Assessment

Factor	Evaluate
Soil drainage	Percolation test
pH	Lab test
Sun exposure	Morning sun/afternoon shade ideal
Air circulation	Avoid stagnant pockets
Irrigation access	Plan for establishment

Planting Protocol

Hole preparation: 2-3× root ball width, same depth
Set depth: Root flare at or above grade
Backfill: Native soil; amend only if necessary
Watering basin: Create to hold water
Initial watering: Saturate thoroughly
Mulching: 3-4" depth, away from trunk
Staking: Only if necessary; remove within 1 year

Establishment Care

Period	Watering	Fertilizing
Month 1	Every 2-3 days	None
Month 2-6	Weekly	Light if growth poor
Year 2	During dry periods	Spring application
Year 3+	Drought only	As needed

Economics

Production Costs (Per Unit)

Product	Growing Cost	Time
1 gallon liner	$4-8	1 year
7 gallon	$20-40	2-3 years
15 gallon	$50-100	3-4 years
2" caliper B&B	$150-300	5-7 years

Pricing Factors

Factor	Impact
Species/cultivar	Major (kousa > florida in some markets)
Disease status	Critical
Size and form	Major
Seasonal availability	Moderate
Regional demand	Significant

Troubleshooting Production Issues

Issue	Cause	Solution
Poor rooting	Timing, hormone, moisture	Optimize protocol
Graft failure	Incompatibility, technique	Practice, match species
Chlorosis	High pH, iron deficiency	Acidify, chelated iron
Sunscald	Sudden exposure	Gradual hardening
Dieback	Anthracnose, stress	IPM, stress reduction

Commercial dogwood production requires attention to disease management, careful cultural practices, and quality grading to succeed in competitive markets.