SELECTA BEDDING PLANTS
genus
species
substrate pH
***
feeding
***
growth
retardant
pinching irrigation P & D control
*
average start cultivation in spacing for
tempera10,5–12 cm
ture/day***
pots
Bedding and balcony plants
Achillea
ptarmica
II
6.0
II
Cool Morning
1x
2
white fly
I
week 5 – 9
25–40 plants/m2
Ageratum
houstonia- II
num
6.0
II
no need
no
2
white fly, botrytis
II
week 9 –12
11 cm pot, about
35 plants per sqm
Angelonia
cultivars
6.0
I
no need
1x
2
week 10 –15
30 plants/m2
I
0.025 – 0.05% Topflor
1x
2
week 4 –12
cold cultivation:
week 40 – 48
week 4 –12
For cold cultivation:
week 40 – 48
30 – 36
plants/m2
one week 3
after potting remove
the tip so
that 5 – 6
leaves
remain
1– 2x
3
Thrips, White fly, Attention: I
Botrytis and Rhizoctonia
Aphids, Leaf miner, Red II
spider, Thrips, Pythium,
Botrytis, Fusarium
Aphids, Leaf miner,
II
Botrytis
White fly, Leaf miner,
II
Thrips, Mildew, Botrytis
Aphids, White fly, Botrytis, II
Real mildew
week 5 – 9
30 – 36
plants/m2
35 – 50
plants/m2
3 plants/basket
week 3 – 9
20–30 plants/m2
II
Argyranthemum** frutescens II
Asteriscus **
maritimus
II
6.0
I
0.025 – 0.05% Topflor
Bidens**
ferulifolia
II
5.0 – 6.0 I
0.025 – 0.05% Topflor
Bracteantha
bracteatum II
5.0 – 5.5 II
no need, react well to
Cool Morning
1x
2
Cataranthus
roseus
II
6,0
II
no
1x
2
White fly
Convolvulus**
sabatius
low in salt, 6.0
II
II
0.025 – 0.05%
Topflor
1x
2
Thrips, White fly, Aphids, II
Red spider
week 5 – 9
baskets: week
2– 6 Cold cultivation: week 40 – 48
20 – 25
plants/m2
3 plants/m2
Diascia
cultivars
II
5.0 – 6.0 II
Usually not necessary,
possibly apply 0.025 –
0.05% Topflor when
sales size has been
reached
1x
1– 2
Apids, Thrips, White fly, II
Leaf miner. Attention:
Virosis may occur!
Combat aphids. Pay particular attention to hygiene!
week 5 – 9
For baskets:
week 2– 6
30 – 50
plants/m2
3 – 5 plants/
basket
Euphorbia
hypericifolia II
6,0
II
no
no
2
White fly
week 4 –10
25–50 plants/m2
Felicia
amelloides II
6,0
II
Cool Morning
1x
2
Thrips, White fly, Aphids II
week 2– 5
25–35 plants/m2
Gaura
lindheimeri II
2x
1
Aphids
II
week 4 – 9
20 – 25
plants/m2
Heliotropium
arborescens II
5.5 – 6.5 I, high
no need
requirements
need definitely higher values
5.5 – 6.0 II
0.025 – 0.05%
Topflor
1x
2
Aphids, White fly,
Red spider, Pythium
I
week 4 – 9
35 – 50
plants/m2
Impatiens
walleriana II
6,0
II
Ask sales team
no
2
Botrytis, Mildew
I
week 5 –12
25–50 plants/m2
Lantana
cultivars
T-Soil,
6.0
easily permeable
and rich in
nutrients
I
0.025 – 0.05% Topflor
1– 2x
starting when the shoots
have reached a lenght of 2
cm. Only
moisten plants slightly!
2
Aphids, White fly,
Red spider, Thrips,
Botrytis
I
week 2– 6
30 – 50
plants/m2
Lobelia**
cultivars
low in
salt, II
5.0 – 5.5 II
Usually not necessary,
1– 2x
spray early shoots with
0.05% Topflor. Only moist
plants slightly!
2
week 5 – 9
baskets
week 2– 6
Cold cultivation
week 40 – 48
30 – 50
plants/m2
5 plants/basket
Nemesia
cultivars
P-Soil with 5.0 – 5.5 II
mediumstrength
addition of
fertilizer,
permeable
Usually not necessary,
if needed apply
0.025 – 0.05% Topflor
when selling size has
been reached
2– 3x
2
White fly, Thrips, Botrytis, II
Rhizoctonia, Pythium.
Attention: Virosis and
bacteria may occur!
Pay particular attention
to hygiene!
Aphids, Thrips, White fly. II
Attention: Virosis can
occur. Pay particular
attention to hygiene!
week 5 – 9
baskets 2– 6
30 – 50
plants/m2
3 – 5 plants/
basket
Lysimachia
nummularia II
no need
1x
2
Aphids
II
week 7–10
20–25 plants/m2
Portulaca
oleraceae
no need
1x
1
Aphids
I
week 5 – 9
30 – 35
plants/m2
Sanvitalia
speciosa
low in salt, 5.5 – 6.0 II, very
II
sensitive
to salt
II
5.5 – 6.0 II
2
Watch out for root
disease caused by
stagnant water!
I
week 5 – 9
baskets
week 1– 4
30 – 35
plants/m2
5 plants/basket
Scaevola
saligna
II
2
Thrips, White fly,
Leaf miner, Botrytis,
Verticillium, Pythium,
Rhizoctonia.
II
week 4 – 7
baskets
week 1– 4
20 – 25
plants/m2
3 plants/basket
Sutera
grandiflora permeable 5.0 – 5.5 II
P-Soil
2
Thrips, White fly, Botrytis, I
Pythium, Rhizoctonia
week 5 – 9
baskets
week 1– 4
30 – 35
plants/m2
5 plants/m2
5.8 – 6.5 II
5.0 – 5.5 II
Hardly necessary, particu- 1x
larly if Cool Morning is
being used. If necessary
spray with 0.025 – 0.05%
Topflor when selling size
has been reached. Only
moisten plants slightly!
Usually not necessary, if
1– 2x
required spray with 0.025 –
0.5% Topflor once selling
size has been reached. Only
moist plants slightly!
Usually not necessary, parti- 1x
cularly not if Cool Morning is
being used, if required spray
with 0.025 – 0.05% Topflor
when selling size has been
reached. Only moisten
plants slightly!
I
I
week 5 – 9
baskets 1– 4
All recommendations are made with regard to our and official trials as well as indications from growers. We cannot accept any responsibility for correctness of this information.
All information differs depending on place, year and variety.
30 – 36
plants/m2
19
Substrate
Group I:
A loose, well draining substrate (including coarse white peat), with Perlite, and an average amount of fertilizer added.
The pH of 5 – 5.5 and it should included the Fe need.
Group II:
A loose, well draining substrate, P or T- substrate with clay (15 – 20%) and Perlite (10%), with an average amount of fertilizer added
(1– 2 g/l) and a pH of 5.5 – 5.0. A higher proportion of white peat and less black peat is mainly of advantage with automatic watering
systems.
Feeding requirements
Group I: Plants that need plenty of feeding
Irrigation feed
Interval feed
at first 0.08 – 0.1%, later 0.1– 0.12%
at first 0.15 – 0.2%, later 0.2– 0.3% – once or twice a week
Group II: Plants with medium requirements
Irrigation feed
Interval feed
at first 0.06 – 0.08%, later 0.08 – 0,1%
at first 0.1– 0.15%, later 0.15 – 0.2% – once or twice a week
Average day temperature
Group I:
Group II:
Average day temperatures for pot plants that have a need
cooler temperatures for warmth:
• potting + 3 week cultivation period
20 °C
• main growing period
17 °C
• hardening
14 °C
Average day temperatures for pot plants that have a need for
plenty of cold:
• potting + 3 week cultivation period
18 °C
• main growing period
14 °C
• hardening
10 °C
COLD CULTIVATION
For some plants cold cultivation is the only way in order to have flowering plants ready for sale by the end of April. These plants include
Asteriscus maritimus, Convolvulus sabatius (“Early Blue” and “Upright Blue” does not need this cooling phase), Dianthus caryophyllus.
In order to fill up your greenhouse, other plants can be grown along. These plants improve in quality through cold cultivation and are also
flowering earlier. We are then talking about in the middle of April. Thid can be: Argyranthemum frutescens, Bidens ferulifolia,
Euryops athanasiae, Bracteantha bracteata, Lobelia erinus and/or Osteospermum ecklonis.
POTTING
PINCHING
October – November
1– 2 weeks after potting
TEMPERATURE
Until 4 weeks after potting 18 – 20 °C as average day temperatures
Then gradually lower the temperature to 4 – 6 °C maintain this cooling phase for at least 4 weeks (6 weeks is better)
This can be done till 9 weeks before selling. After that you need to raise the temperature back to 12–14 °C.
NOTE
• The plants must be relatively dry during the cooling phase in order to avoid fungus infection. They must also be given sufficient feeding
before as it is hardly possible to feed and water them during the cooling phase.
• If P & D controls are carried out the temperature should be raised for a certain amount of time as otherwise the preparations will not
take effect (for at least 36 hours till 2 days to 12 °C, depending on the active substance).
• The temperature should be raised not later than 8 – 9 before the selling date as otherwise the flowering will be too late
Example of a cultivation:
potting
pinching
cultivation
sale
week
46
48
51– 52
1– 6
from 7
16
temperature
18 – 20 °C
<10 °C 4 – 6 °C 12–14 °C
20
Please pay attention to the indications and the publications of the local plant protection authorities and advisory services.