Text Box: Substrate
Use a peat-lite medium composed of peat moss and and perlite or Styrofoam bead mix. Add Dolomite lime to a Ph of 5.8 to 6.2, superphosphate ( 4.5 lbs./cubic yard).

Disinfecting of Benches
Benches need to be cleaned and disinfected every time a new crop is placed on the table. We recommend Greenshield or Zerotol for fungus control. Drench tables before plants are placed on the table with 1 ppm.

Night temperature of 68F and day 75F for the first 2 to 3 weeks.  Night temperatures above 72F can delay flowering.  Stem lengths increase as the day temperature increase relative to night temperature.

Keep evenly damp at all times. Impatiens as a rule require a lot of water and should never be allowed to wilt.

Provide a minimum of 3000 to 4000 foot-candles during the middle of the day. The shading screen should be adjusted to allow for no more than 6000 foot-candles of light.  Low light levels slows flowering.

Varies with geographic location, container size, cultivar, climate, and number of cuttings per container, e.g. 4” pots can be finished in 8-10 wks in warmer times of the year while requiring 10-16 wks in low-light, cooler times.
Text Box: Growing New Guinea ODYSSEY Impatiens
New Guinea Impatiens were first commercially grown in the U.S. in 1972.  Since then, hundreds of cultivars have been released and patented.  Recent breeding have concentrated on shorter plants, shortened production times, heat and water stress tolerance, and variation in flower and foliage size and color.  Good planning, scheduling of the growing periods and the correct application of cultural measures are very important. We hope the following outline will be of assistance in your New Guinea Impatiens crop.
Text Box: After Potting
Use Fungicide drench after potting to control Rizoctonia and Pythium.

Little or no fertilization is needed until the roots reach the pot margin.  Fertilizer on a CLF program at 100-150 ppm nitrogen with the nitrogen level about equal to potassium (150-0-150 to 200-0-200) with no phosphate if superphosphate was added during mixing.  If superphosphate was not added, liquid feed with 50 to 75 ppm P.  Use 300 to 350 ppm N, 100 ppm P, and 300 to 350 K every third watering.  Magnesium deficiency is common and may be corrected using 8 oz. Magnesium sulfate to 100 gal. Once a month.

Growth Inhibitors
Generally not required or used.

Pest and Disease control
Common Pest problems are with Aphids, Mealybugs, Mites, and Thrips.

For more information or technical assistance call 
1-800-443-2290 and request  to speak to our 
Technical Advisor—Gundolf at Ext 210

** These cultural notes on Impatiens are, to the best of our knowledge, valid and true. However, Floremara can not be held responsible for the results of any crop grown under these guidelines.