Four Star Culture Guide - 2019 - 36

NEMESIA

Bluebird, Opal Innocence®
NUTRITION
pH: 5.5 - 5.8
EC: (2:1 extraction method) .6 - .9
Constant feeding at 150ppm - 200ppm nitrogen with a
fertilizer selected for grower's water quality and soil mix is
recommended.
TEMPERATURE
Rooting out: 65 - 72 F
Growing on: 55 - 68 F
Holding: 50 - 60 F
WATERING
Maintain moderate soil moisture. Allow the soil to cycle from
moist to dry. Avoid both severe dry downs/wilting and long
periods of wet soil, especially in cooler temperature, low light,
and high humidity conditions.
TIMING
4" - 5"/Grande™: 4 - 5 weeks with one 52 cell Supernova®
plant, or one 104 cell plant with Opal Innocence® (not offered
as a Supernova).
6"/1GL Royale™: 5 - 7 weeks with one or two 52 cell
Supernova plants, or one to two 104 cell plants with Opal
Innocence (not offered as a Supernova).
8": 7 - 9 weeks with two or three 52 cell Supernova plants, or
two to three 104 cell plants with Opal Innocence (not offered as
a Supernova).
10" - 12" Hanging Basket: 9 - 12 weeks with three to five
104 cell plants.
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 are required.

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 from 104 Liners, but flowering time and
"retail ready" containers can be produced in portions 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 104s may be
helpful to even out plant growth and vigor.
PLANTING
Nemesia rooted liners should be planted into a well-drained
soil mix selected to match individual water quality and fertilizer
blends. Water in thoroughly without saturating the mix and
maintain a constant moderate soil moisture level for the first
seven to 10 days to establish new rooting. Plants have already
been pinched and further pinching should not be needed, except
in the case of taller material at time of planting or a second pinch
on plants for larger containers. This second pinch can be given for
larger containers, usually three to four weeks after planting.
LIGHT/LIGHTING
These plants should be grown in a high light area of the
greenhouse for optimal flowering and plant development. They
flower quite early and lighting should not be needed for regular
season crops. Daylength extension lighting of 14 to 16 hours
total daylength can be helpful for early finish crops. This is
especially true if using 104 Liner tray plants.
GROWTH REGULATORS
A light spray application of 5ppm - 10ppm Sumagic or a 1ppm
Bonzi drench can be applied as needed, based on plant growth
and growing conditions. Opal Innocence should not require any
PGR treatments if grown properly. Watch for the "softening"
look and lighter green appearance of new growth as an
indication for PGR treatment needs. In more northern areas,
the lower rates should be used as a starting base, while in
more southern areas, the higher rates will probably be needed.
Other materials such as Topflor® (flurprimidol) and Piccolo®
(paclobutrazol) can be used at rates that correspond with the
degree of treatment recommended for Sumagic or Bonzi.

Four Star Greenhouse I www.pwfourstar.com I 734-654-6420
36

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