Four Star Culture Guide - 2019 - 16

CALIBRACHOA
Superbells®

NUTRITION
pH: 5.5 - 5.8
EC: (2:1 extraction method) .8 - 1.2
Constant feeding at 200ppm nitrogen with a fertilizer selected
for grower's water quality and soil mix is recommended.

Supernova 52 Liners are used at Four Star and are
recommended for best flower timing, flower count and
plant size in smaller containers. If 104s are used for spring
production, supplemental lighting, additional crop time, pinching,
and additional PGR applications may be required.

TEMPERATURE
Rooting out: 65 - 72 F
Growing on: 55 - 68 F
Holding: 40 - 50 F

Supernovas are not recommended or required for baskets and
large containers. But, many growers are beginning to use them
for early hanging basket and upright needs. Growth habit and
timing may be different with 104 Liners, but flowering time
and "retail ready" containers can be produced in periods of the
year when not possible from 104s. If mixing Supernova and 104
Liners in combination plantings, a pre-plant drench of Sumagic®
(uniconazole) or Bonzi® (paclobutrazol) to the 104 Liners is
usually required to even out plant growth and vigor.

WATERING
Maintain moderate soil moisture. Allow the soil to cycle from
moist to slightly dry. Avoid both severe dry downs/wilting and
long periods of wet soil, especially at cooler temperatures. To
avoid soft rots or root issues in lower light, cooler temperatures,
or higher humidity situations, water early in the day, if possible
(to avoid prolonged exposure of water on foliage). Follow the
plant grouping suggestions listed below under PGRs to assist in
proper water management (Lemon Slice® will perform best
if watered as an average vigor group plant).
TIMING
4" - 5"/Grande™: 4 - 5 weeks with one 52 cell Supernova®
plant.
6"/1GL Royale™: 6 - 7 weeks with two 52 cell Supernova
plants.
8": 7 - 8 weeks with three 52 cell Supernova plants.
10" - 12" Hanging Basket: 8 - 11 weeks with three to five
104 Liner plants.

Larger upright or basket production needed for earlier season
finishing should be planned, using varieties listed below as
"earliest" to flower and/or grown from Supernova liners.
PLANTING
Superbells® should be planted into a well-drained soil mix
selected to match individual water quality and fertilizer blends.
Water in without saturating the mix and maintain a constant
moderate soil moisture level for the first seven to 10 days for
establishing new rooting. When using Supernova treated liners,
NO pinching is required unless deemed taller than desired. If
104 Liners are used and if size allows, pinch at transplant. A
preventative fungicide drench after planting can be helpful,
such as Banrot® (etridiazole plus thiophanate-methyl).

Four Star Greenhouse I www.pwfourstar.com I 734-654-6420
16

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.


http://www.pwfourstar.com

Four Star Culture Guide - 2019

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

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Four Star Culture Guide - 2019 - Cover1
Four Star Culture Guide - 2019 - Contents
Four Star Culture Guide - 2019 - 1
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