Petunia grandiflora F1 Limbo, natural dwarf
Used: Outdoor containers, pot and pack, suitable for borders and beds.
Plant type: Annual
Height in pot: 10-15 cm (4-6 in.)
Garden height: 15-20 cm (5-8 in.)
Seed count: 8,000-11,000 seeds/gram (255,000-300,000 seeds/oz) Seed count varies by variety and seed lot
pH 5.9 to 6.2
Media EC 0.5-0.75
Stage 1: radicle emergence
Radicle emergence will occur in 3-4 days.
Moisture: keep media wet but not completely saturated to prevent lack of oxygen.
Covering is not necessary. Light: Petunia will germinate better in light versus in the dark.
Temperature: 22-25ºC (72-77ºF )
Stage 2: expanding stem and cotyledons
Moisture: keep media moist but not wet to allow roots to penetrate.
Temperature: 18-20ºC (65-68ºF)
To induce early flowering a day of at least 14 hrs at
3500 lux (350 foot candles) is needed.
Stage 3: development of first true leaves
Moisture: reduce moisture levels for compact sturdy growth. Allow media to dry in between watering. Temperature: 18-20ºC (65-68ºF) To reduce stretching do not use ammonium-based fertilizers but replace with calcium-based fertilizers.
Supplemental lighting up to an 16-18 days will induce early flowering.
Stage 4: finishing/holding stage
Moisture: Keep media relatively dry to prevent stretching.
Temperature: 15-18ºC (60-65ºF) Temperatures below
15ºC (60ºF) will delay flower initiation. Fertilizing and EC: see stage
Low boron levels may cause tip abortion and blindness. Use of calcium-based fertilizers will prevent calcium deficiency
pH: keep pH above 5.7 and below 6.4 to prevent iron deficiency.
Moisture: Allow media to dry and plants slightly to wilt between watering. Best result with growth regulators is after application of watering when foliage is dry.
Light: Most Petunias need long days (> 14 hrs ) to pro- mote early flowering. In low light areas supplemental lighting of 4,000-6,500 lux (400-650 foot candles) is advisable.
Petunia Limbo is naturally dwarf and does not need growth regulators to provide a salable plant. However, PGRs can be applied to provide extra compact plants. The plants responds to Daminozide (Dazide, B-Nine 85) at 2-3 g/litre. Stop before flower buds develop.
Control: common insecticides can be used, check for labelled products.
Pythium, Phytophthora – Damping off. Good hygiene is essential. Botrytis and Powdery mildew can also be a problem. Good hygiene is essential.
Sowing Potting Flowering
wk 6 wk 10 wk 17
wk 10 wk 14 wk 19/20
“Information copied from the breeder.
Muller will not accept any liability for failure and/or damage as a consequence of incorrect and/or inexpert cultivation by or on behalf of the Buyer.”