Four Star Culture Guide - 2019 - 19

CANNA
Toucan®

NUTRITION
pH: 6.2 - 7.0
EC: (2:1 extraction method) 1.0 - 2.0
Constant feeding at 150ppm - 200ppm nitrogen until well
rooted and then 200ppm - 300ppm using a fertilizer selected
for grower's water quality and soil mix is recommended.
TEMPERATURE
Rooting out: 70 - 75 F
Growing on: 70 - 75 F night and 75 - 85 F day
Holding: 65 - 68 F
WATERING
Keep the Toucan® Canna moist at all times. Avoid long
periods of moderate soil moisture levels or severe soil drying.
Such low levels of soil moisture can lead to leaf damage
and loss of lower leaves. Unlike most crops, using soil
moisture levels to control plant growth and quality is not
recommended.
TIMING
4" - 5"/Grande™: 5 - 7 weeks with one 72 cell plant.
6"/1GL Royale™: 6 - 8 weeks with one to two 72 cell plants.
8": 7 - 9 weeks with one to two 72 cell plants.
10" - 12": 8 - 11 weeks with two to three 72 cell plants.
On average, flowering will occur in 10 - 12 weeks based on
average growing temperatures and light levels. Best to sell green.
PLANTING
The 72 Liner plants should be planted slightly deeper than
the liner root ball into a well-drained soil mix selected to
match individual water quality and fertilizer blends. Water in
thoroughly with fertilizer at 150ppm - 200ppm nitrogen and
apply fertilizer at each irrigation. Maintain a uniformly moist,
but not saturated soil moisture level.

LIGHT/LIGHTING
The Toucan Canna should be grown in high light level
area of the greenhouse for optimal plant development,
shoot development, and flowering. No day length lighting
manipulation is required.
GROWTH REGULATORS
Growing under high light conditions, with adequate spacing,
moist soil levels, recommended temperatures, and higher
fertilizer levels will produce the highest quality plants and lower
the need for any PGR treatments.
If a PGR treatment is desired for plant toning or to control size,
Bonzi (paclobutrazol) as a drench at a rate of 1ppm - 4ppm can
be applied.
PEST and DISEASE MANAGEMENT
With proper growing conditions, space, and water
management, disease issues should not be a problem.
Spider Mites are the primary pests of concern. Scout crops on a
regular basis and use control measures as needed.
OUTDOOR GROWING SCHEDULE
Toucan Cannas are heat-loving tropical plants and should be
grown outdoors only after the danger of cool weather has
passed and temperatures have warmed. The foliage can be
damaged from chilling temperatures. At Four Star (Michigan) we
would only move these crops outdoors for finishing in later May
if weather allowed.
OTHER TIPS
For proper plant growth, flowering time, and desired
finished quality, provide high light levels, warm/tropical
temperatures, adequate spacing, managed moisture levels
that are at a higher level than most crops, and higher than
average nutrition levels. Plants should be scheduled and grown
in timeframes that supply these requirements. In many areas
of the country it is best to schedule the Toucan Canna
for later spring and summer sales.

The rates and chemicals listed are based on our southeast Michigan growing conditions, and are not recommended for nationwide application.
Please adjust the rates and spray applications to your location and facility.

Four Star Culture Guide - 2019

Table of Contents for the Digital Edition of Four Star Culture Guide - 2019