USDA HARDINESS: 9-11
ROOTING: 2-3 weeks at temperatures of 64-75¨F
For 4" (10 cm) pot, use 1 plant per pot. Ready for sales (from rooted cutting) within 6-8 weeks.
For 6" (15 cm) pot, use 1-2 plants per pot. Ready in 8-10 weeks.
For 10" (25 cm) hanging baskets, use 3 - 4 plants. Ready in 10-12 weeks.
PINCHING: Should be pinched once, 2 weeks after planting.
Second pinch is recommended for baskets. May be cut instead of pinched.
FOLLOWING TRANSPLANT: During the first 2-3 weeks use water and fertilize moderately E.C. 1.5 -1.8.
Allow roots to reach the side of the container before increasing water and fertilization.
LIGHT INTENSITY: High light intensities, preferably full sunlight is essential for optimum finish (min. 6,000 fc / 60,000 LUX).
If shaded, the plant will appear stretched and less blooming. During winter supplement lighting is required.
TEMPERATURE: Day: 64-75¨H night: 55 - 64¨H can grow in temperatures out of this range - nearly freezing point and up to 95¨H (35¡æ).
FERTILIZATION: Vegetative Petunia requires heavy fertilization.
Apply a constant feed program with a balanced fertilizer N:P:K=2:1:2, using 250-300 ppm Nitrogen
(micronutrients in average levels with iron slightly higher).
IRRIGATION: Keep well watered. Sensitive to water surplus. Drip irrigation is recommended. Leach periodically to prevent salt accumulation.
MEDIUM: Use a well-drained peat/perlite disease-free potting mix. pH 5.5 -6.0, EC 0.8-1.2.
GROWTH REGULATORS: Optional. Not necessary under high light intensities.
1-3 sprays of ALAR (B-Nine) 2 gr/L according to required plant size. Bonzi is an effective regulators for 4" pot production.
DISEASES & PEST CONTROL:
Insects: White Flies, Leaf miners and aphids.
Diseases: Botrytis, Pythium, Crown Rot. Plant liners at soil level - not too deep.
Avoid excessive moisture on foliage.
A standard preventive spray program should be applied to control pests and diseases