Four Star Culture Guide - 2019 - 38

NEMESIA
Sunsatia®

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. Sunsatia® perform best if grown
drier than many crops.
TIMING
4" - 5"/Grande™: 4 - 5 weeks with one 104 Liner plant.
6"/1GL Royale™: 5 - 7 weeks with one to two 104 Liner plants.
8": 7 - 9 weeks with two to three 104 Liner plants.
10" - 12" Hanging Basket: 9 - 12 weeks with three to five 104
Liner plants.
PLANTING
The 104 Liner plants 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.
Sunsatia Nemesia flower slightly later than Bluebird or Opal
Innocence® Nemesia, but 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.
GROWTH REGULATORS
Moisture management alone is an effective method of controlling
growth. Not only does growing Sunsatia "on the dry side"
produce the healthiest plants, it also produces fuller and more
compact plants. A light spray application of 5ppm - 10ppm
Sumagic® (uniconazole) or a 1ppm Bonzi® (paclobutrazol) drench
can be applied as needed. 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.
Watering practices, weather, and greenhouse environment can
greatly affect plant growth and performance.
PEST and DISEASE MANAGEMENT
Proper temperature, light levels, and water management will
eliminate most disease issues. Avoid darker, warmer, and
more humid areas with poor air movement. A broad spectrum
fungicide such as Banrot® (etridiazole plus thiophanate-methyl)
can be helpful when applied at transplant, if desired. Thrip
are a major concern to Sunsatia, due to the plants'
sensitivity to INSV (Impatiens necrotic spot viruses).
Maintain a soil pH of 5.5 - 5.8.

Four Star Greenhouse I www.pwfourstar.com I 734-654-6420
38

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

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