February 2019 - 33

CULTURE REPORT
* Fertilize with 100- to 150-ppm
nitrogen once a week from
15-0-15 NPK liquid fertilizer,
alternating with 20-10-20.
* Roots should develop in seven
to nine days.
Stage 4 - Toning rooted cuttings:
* Lower air temperature to 70 to
75° F during the day and 62 to
68° F at night.
* Increase light intensity to 2,000
to 4,000 foot-candles.
* Move liners from mist area to
an area of low humidity.
* Fertilize with 150- to 200-ppm
nitrogen once a week from
15-0-15 alternating with
20-10-20.
* Pinch three to four weeks after
sticking. Sometimes this is
performed by the propagator.
GROWING ON TO
FINISHED CROP
Temperature: Grandaisy
likes it warmer than standard
argyranthemums. Transplant and
grow in the greenhouse at 60 to 65° F
for two to three weeks before moving
to a cooler environment. Once plants
are established, begin growing at cool
44 to 55° F night temperatures. After
four to six weeks of cool conditions,
plants can be forced in six to
eight weeks. General temperature
recommendations are 65 to 79° F
day temperatures and 50 to 61° F
night temperatures.
Light: For Grandaisy, light intensity
is more important than daylength.
Recommended light levels are 6,000
to 9,000 foot-candles. Growers
should plan on lighting Grandaisy to
hit early spring sales windows.
Fertilizer: Constant feed of 225
to 300 ppm with a complete, watersoluble
fertilizer. Keep soil pH
between 5.8 to 6.2.
Plant Growth Regulators:
Grandaisy is responsive to plant
growth regulators. Spray 5- to
20-ppm Sumagic or drench 2-to
5-ppm Bonzi. Recommended tank
mix spray rates are B-Nine at 1,500
to 2,000 ppm with Cycocel at 750
to 1,000 ppm. Apply as needed.
White is more vigorous and requires
more Bonzi, while Pink Halo is more
compact and requires less.
In research trials, a one-time PGR
application of 3-ppm Bonzi applied
Phlox paniculata
FLAME PRO
* Blooms two weeks earlier than Flame series
* Long flowering window from late spring into
summer
* Well-matched series in habit and vigor
* Five bold colors for a complete retail program
Discover the difference at DummenOrange.com
Dümmen Orange | 250 South High Street, Suite 650, Columbus, OH 43215 | 614-850-9551 | Info.NA@DummenOrange.com
ANNUALS | PERENNIALS | SUCCULENTS | POTTED PLANTS | CUT FLOWERS
FLAME PRO
CERISE
three weeks after transplant
produced a nice round habit in
a quart pot. But in general, it
is recommended Grandaisy be
grown in larger pots. Production
trials are recommended.
Disease control: Apply a broadspectrum
fungicidal drench after
planting. Watch for root rots and
Botrytis.
Pest control: Monitor for thrips,
aphids, whiteflies and leaf miners.
For more information
about Grandaisy intergeneric
argyranthemums, visit www.
suntoryflowers.com.
Delilah Onofrey is marketing director
for Suntory Flowers, North America.
She can be reached at 440.522.1447
or delilah@suntoryflowers.com.

http://www.suntoryflowers.com http://www.DummenOrange.com

February 2019

Table of Contents for the Digital Edition of February 2019