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Verbena

Boasting good branching and a mounding habit, growers will also appreciate the heat and cold resistance of Empress verbena.  ‘Empress Soft Pink Charme’ and ‘Empress Dark Red Charme’ feature unique coloration with white centers.

Use a good rooting medium with a well-aerated soil structure. After sticking, water the cuttings uniformly for a good soil-to-stem connection. Temperatures should be maintained between 65 and 75° F day and night. To enhance and promote uniform root development, apply bottom heat at 72 to 75° F.

Grow at 65 to 75° F during the day and 60 to 65° F at night with good circulation. Optimum light level is 5,000 to 6,000 foot-candles.

Alternate liquid feed of 200- to 300-ppm 15-0-15 and 20-10-20. Excess ammonium may cause soft growth and internode stretch. Leach regularly to maintain an EC of 1.5 to 2.0. Verbena is sensitive to both drying out and being too wet; manage water and humidity to reduce occurrences of diseases like Botrytis gray mold.

A hard pinch (above the fourth or fifth set of leaves) once plant roots reach the edge of container will promote basal branching. Additional pinching will improve plant fullness.

from Dümmen Orange




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