November 2020 - 35

CULTURE REPORT
CONTAINER SIZE
1.0 - 2.5 quart
3.0 quart -
2.0 gallon
CROP TIME
12 weeks
14 weeks
PLANTS PER POT
1 ppp
2-3 ppp
Estimated finish crop time is from transplant of a 105-cell tray and finished
at the recommended ADT 68° F.
Table 1. Crop time and plants per pot recommendations for finishing
Javelin Forte.
WEEK AFTER
TRANSPLANT
1 week
2 weeks
4 weeks
8 weeks
10 weeks
12 weeks
Javelin Forte has no vernalization requirement, but as is the case for
many perennial species a short cold treatment for three to four weeks at
50 to 55° F increases flowering uniformity. Bulk plants after transplanting
prior to cooling period for best plant fill and habit.
Some common pests of lavender are aphids, spider mites and whiteflies.
Some common diseases to prevent are Phytophthora, Pythium, Botrytis
and Rhizoctonia.
Mike Fischer is the perennials technical lead; Steffi Hugo is the perennial product
manager and technical lead; and Alicain Carlson is the technical trial manager for
Syngenta Flowers. For additional information on Javelin Forte lavender,
go to www.syngentaflowers-us.com.
Always read and follow label instructions. Some products may not be
DESCRIPTION
Transplant one plug per pot and grow at
68° F ADT to establish the plants
If not pinched prior to transplant now
would be a good time to do so
Drop temperatures to 50 to 55° F
for three to four weeks
Raise temperatures to 68° F
to force flowering
PGR spray of B-Nine WSG or Bonzi
if needed to tone
Finish
Table 2. Example crop schedule for a 2 ½-quart container of Javelin Forte.
FINISHING
Javelin Forte can be finished in 1-quart to 2.5-quart containers with
one plant per pot (ppp). Three quart and larger pots need two to three
plants per container (Table 1). The crop should finish in 12 to 14 weeks.
Transplant directly into the finished container of choice. Place the
rooting media slightly above the level of media in the container.
Temperature and light. An optimal average daily temperature (ADT)
for Javelin Forte is 68° F (day 72 to 74° F; night 64 to 66° F). Day
extension lighting is beneficial to 14 hours to hasten flowering since
Javelin Forte has a facultative long day flowering response. Aim for a
DLI of at least 14 to 16 mols/day.
Nutrition and growth control. Fertilize Javelin Forte with 75- to 125ppm
nitrogen for optimal vegetative growth and flower power. Maintain
a media pH of 6.1 to 6.5 and EC (pour thru) of 2.3 to 3.2 mS/cm. Media
should dry between irrigations alternating between moisture levels 2
and 3. Lavender are Mediterranean plants so don't grow them too wet!
Pinching is recommended one to two times either in propagation or
seven to 10 days after transplant to improve branching for a fuller plant
habit. If necessary, a B-Nine WSG (daminozide) spray at 2,500 ppm,
or a Bonzi (paclobutrazol) spray at 30 ppm can be used to control size
and tone the plant. In the hot, humid southern United States, a Sumagic
(uniconazole) spray at 3 to 5 ppm may be needed to control growth. If
the plants are progressing too quickly for your production schedule and
need to be held, a 3- to 5-ppm Bonzi drench at visible bud is effective.
LEADS THE WAY
The America in Bloom national awards program brings out the best in hometowns
and empowers communities to excel. Lead the way and experience the benefits by
registering today.
registered for sale or use in all states or counties and/or may have statespecific
use requirements. Please check with your local Extension service to
ensure registration status and proper use. Some or all of the varieties may
be protected under one or more of the following: Plant Variety Protection,
United States Plant Patents and/or Utility Patents and may not be
propagated or reproduced without authorization.
COMMUNITY INVOLVEMENT
ENVIRONMENTAL ACTION
HERITAGE PRESERVATION
PLANT BENEFITS
www.AmericaInBloom.org
GREENHOUSE PRODUCT NEWS 35
http://www.syngentaflowers-us.com http://www.AmericaInBloom.org
November 2020

Table of Contents for the Digital Edition of November 2020
