Four Star 2025 Grower Resource Guide - 186

Culture Information
All Proven Winners®
varieties can be grown well at a pH of 5.8 - 6.2. Grouping plants by their optimal growing range, with similar pH needs
and temperatures, can simplify production and make growing more efficient.
Proven Winners® Annuals
LOW PH 5.5 - 5.8
GROWING
TEMP
55° - 65° F Calibrachoa, Nemesia, Petunia†
Phlox
65° - 72° F Double Delight®
Pegasus®
, Double Up™
and Surefire®
Jamesbrittenia, Scaevola,
Sutera (Bacopa)
,
Begonia*,
,
MID PH 5.8 - 6.2
Argyranthemum, Artemisia*, Bidens, Calendula, Calylophus,
Gaura, Lobularia, Osteospermum
Ageratum, Alternanthera, Sprengeri Asparagus,
Space Age™
Begonia, Calla, Carex*, Cleome†
Chrysocephalum, ColorBlaze®
, Colocasia,
Dahlia, Dichondra, Spikes Dracaena, Gomphrena, Hedera (Ivy),
Helianthus, Licorice Helichrysum, Rockapulco®
Impatiens,
Isolepsis (Scirpus)*, Isotoma, Juncus, Lamium, Lobelia,
Mecardonia, Charmed®
Oxalis, Vertigo®
Plectranthus, Portulaca, Rockin'®
Lemon Coral®
Vinca Vine (Vinca major)
70° - 75° F Vinca (Catharanthus)
Angelonia, Mezoo™ Aptenia, Hypoestes, Luscious®
Thunbergia, Torenia
Fertilizer: 150 - 200 Constant Liquid Feed (CLF)
*100 - 150 CLF
† 200 - 300 CLF
Proven Winners Shrubs
LOW PH 5.0 - 5.8
®
GROWING
TEMP
55° - 65° F Hydrangea quercifolia
65° - 72° F Hydrangea macrophylla
MID PH 5.8 - 6.2
Clematis, Euonymus, Physocarpus, Rhamnus
Buddleia, Buxus, Callicarpa, Calycanthus, Caryopteris, Cotinus,
Deutzia, Hibiscus, Hydrangea arborescens, Hydrangea paniculata,
Itea, Ligustrum, Lonicera, Nerium, Philadelphus, Rosa, Sambucus,
Spiraea, Syringa, Tecoma, Weigela
Four Star Greenhouse
Culture Guide
EVOLVULUS
Blue My Mind
®
NUTRITION
pH: 6.0 - 6.5
EC: (2:1 extraction method) .4 - .6
Constant feeding at 100ppm nitrogen with a fertilizer selected for
grower's water quality and soil mix is recommended.
TEMPERATURE
Rooting out: 65 - 72 F
Growing on: 70 - 75 F
Holding: 62 - 65 F
WATERING
Maintain moderate to slightly dry 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 with cooler temperatures, lower
light conditions, and higher humidity levels.
TIMING
Grande™
- QT: 7 - 9 weeks with one 104 Liner
6.5 " - Royale™
: 8 - 10 weeks with one 104 Liner, or 6 - 8 weeks if
planted with two 104 Liners
8.5 " : 10 - 12 weeks with one 104 Liner, or 7 - 9 weeks if planted with
two 104 Liners
10 " - 12 " : 10 - 12 weeks with four to five 104 Liners
Blue My Mind®
of the U.S. Blue My Mind®
XL is better suited for production in the Northern half
is recommended in smaller containers for
the South, and Blue My Mind XL can be trialed.
Blue My Mind XL can be used in larger containers and combinations
in the South. For Southern production, use the high end of the
recommended crop time for Blue My Mind, and lower end of the
recommended crop time for Blue My Mind XL.
PLANTING
The 104 Liners should be planted into a well-drained soil mix selected
to match individual water quality and fertilizer blends. Water in
thoroughly without saturating and keep a constant moderate moisture
level for the first seven to 10 days to establish roots. Plants have
already been pinched and new pinching should not be needed, except
in larger material at planting or a second pinch on plants for large
containers. This second pinch can be given usually four to six weeks
after planting.
LIGHT/LIGHTING
These plants should be grown in a high light area of the greenhouse
for optimal flowering and plant development. Blue My Mind flowers
early and supplemental lighting should not be required for spring
flowering. But, the plants do perform much better in warmer
conditions.
GROWTH REGULATORS
Neither Blue My Mind requires PGR applications if grown properly
and within suggested crop times. To maintain desired plant size, a
trimming pinch can be done. Or, if required, a B-Nine®
spray can be applied at 2,500ppm. Florel®
(ethephon) should
NOT be applied for branching or height control, as plants may
develop leaf edge burn.
PEST and DISEASE MANAGEMENT
There should be little instance of disease if basic cultural guidelines
are followed. Proper temperature, light levels, and water management
will eliminate most disease issues. A broad spectrum fungicide such
as Banrot®
(etridiazole plus thiophanate-methyl) can be applied at
transplant if desired. Thrips and Whitefly can be pests of concern.
OUTDOOR GROWING SCHEDULE
Evolvulus finish best in a controlled greenhouse environment, but can
be moved outdoors after all threat of frost has passed and weather is
consistently warm (approximately early June and later in Michigan).
OTHER TIPS
* Both Blue My Mind are available in the 28-count Supernova®
Thriller™
tray. This tray is designed to be used for possible fast finish
in larger monoculture containers, and especially as a component
plant in larger combinations.
* Both Blue My Mind perform best when grown warm, in a
bright location, with moderate to slightly dry soil moisture
levels.
* PGRs should not be needed. To maintain proper size and shape, trim
lightly as needed. Or, B-Nine at 2,500ppm spray is a good PGR for
growth control.
* Water earlier in the day, especially in poor weather conditions, to
avoid prolonged periods of moisture on foliage.
* Do not over-fertilize. These plants do not require much fertilizer.
Excessive fertilization will cause poor growth and leaf edge burning.
Fertilize similar to Infinity®
New Guinea Impatiens. Either constant
100ppm feeding or fertilizing one time per week at 200ppm, with
other irrigations using clear water only.
* Both Blue My Mind are best suited for peak week and later
finishing dates, due to higher light and warm temperature
needs.
* Note the recommended crop times for Blue My Mind and Blue My
Mind XL under Timing, especially for Southern growers.
(daminozide)
Visit our website to download
our digital Culture Guide with
recommendations on growing
hundreds of varieties.
26
Four Star Greenhouse I pwfourstar.com I 734-654-6420
The rates and chemicals listed are based on our southeast Michigan growing conditions. Please adjust them to your location and facility.
HIGH PH 6.0 - 6.5
Lantana,
Browallia, Heart to Heart®
Caladium,
Canna, Evolvulus, all Pennisetum
except Vertigo, Pentas
Pennisetum,
Salvia, Sanvitalia*,
Sedum, Strobilanthes, Superbena®
Verbena,
Cuphea, Cyperus, Euphorbia,
Heliotropium, Ipomoea,
Meteor Shower®
Verbena
Coleus,
HIGH PH 6.0 - 6.5
186
734-654-6420

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Four Star 2025 Grower Resource Guide

Table of Contents for the Digital Edition of Four Star 2025 Grower Resource Guide