University of Maryland
IPM Weekly Alert for Nursery & Landscape IPM Weekly Alert for Greenhouse & Cut Flowers Conferences
IPMnet home page Welcome About Us publications Contact Us Hot Topics Links

 
Project description: 
Our objective is to help Maryland Cut Flower Commercial growers evaluate whether new cultivars of specialty cut flowers are adapted for the Maryland market. We were supplied with plugs of Lisianthus (Eustoma latifolia) series, Dianthus plants from Pan American Seed Company. Pollenless sunflower varieties and Monarda didyma ‘Panorama Red’ from Benary Seed Company, Germany. Cramer Posie Patch in beautiful southeastern Pennsylvania supplied several crested and a wheat-type celosia and tapestry millet. Besides testing these varieties at the Central Maryland Research and Education Center we had cooperation from five Maryland growers and one Virginia grower. The growers evaluated and collected data on the lisianthus, monarda and dianthus cultivars during the 1999 season.

Growing methods:
Each of the varieties we tested at CMREC were grown in 4" elevated beds with 4 ml black plastic and 2 trickle tapes laid down under each row of plastic. Three-inch holes were made in the plastic and the plugs were placed into the opening. The lisianthus from Pan American Seed company were started by a Florida greenhouse operation and shipped to CMREC. The plugs were approx.  size. The sunflowers and celosia were direct sown in early June of 1999. The monarda was started as seed in a Maryland greenhouse, then transferred out to the field.

The following are our results:

Sunflower
One of the outstanding sunflowers was ‘Ikarus.’ This variety had an abundance of dark colored flower heads surrounded by bright yellow rays. This was one of our favorite sunflowers. ' Ikarus' branched from the base of the plant on strong stems.  The sunflower ‘Ring of Fire’ is a good bi-color sunflower that performed well at the Research Center. It tended to branch high on the plant with good length to the flower stems.  Sunflower ‘Soraya’ produced an abundance of flowers that are orange and about 5 – 6 inches in diameter. Though it is profuse in the number of blooms, it paled in comparison to the beauty of ‘Ikarus’.  Sunflower ‘Sole’ has an attractive flower that is gold colored in the center surrounded by light yellow rays. The first harvest was from flowers at the top of the plant but after it was cut on top it started to branch lower on the plant. 

Monarda 
Benary Seed Company suggested that we try Monarda ‘ Panorama Red Shades’, a hardy perennial that produces 24” long stems. We started plants in the greenhouse on February 15,1999 and transplanted out to the field on June 1. The plants grew well all summer but we did not have any flowering in the first season. The foliage was clean of powdery mildew throughout the summer into the early fall.  This is a real plus since the Achilles heel of monarda has been its susceptibility to powdery mildew. We will continue to evaluate ‘Panorama Red Shades’ in 2000 at the Central Maryland Research and Education Center.

Dianthus
Pan American supplied several Dianthus cultivars for evaluation in 1999. The dianthus was delivered as plugs that were planted out into the field. Many of the cultivars flowered repeatedly during the growing season. Philip Katz felt that some of the cultivars would probably overwinter in Maryland and serve as a perennial cut flower. We tested Dianthus 'Pink', 'Rose Eye', 'Carmine Red', 'DN225', 'White Eye', 'Scarlet', and Dianthus 'Mix'. See web page for data charts of performance for each variety and for grower comments.

Thanks to all of the suppliers and growers who participated with us in filed testing in 1999. We will continue the research for "our perfect wave" into 2000. 

1999
Maryland Trials of New Cut Flower Species





Region of Impact: Maryland 

Co-operators for cut flower trials: Pan American Seed Company, California, Benary Seed Company, Germany and Cramer's Posie Patch 

Updated July 7, 2005