2002 SUMMER TRIAL GARDEN RESULTS

J. Raymond Kessler, Jr.

Acknowledgments
Introduction
Methods
Results
Evaluator's Notes
Table 1, performance ratings by species
Table 2, performance ratings by cultivar
ACKNOWLEDGMENTS
The authors gratefully acknowledge the substantial donations of plant material from Barton's Greenhouse & Nursery Inc., Danziger Flower Farm, Dennis Nursery & Greenhouse Inc., and Wright's Nursery & Greenhouse, Inc as well as the time and effort of Jon Coleman of Auburn and Arnold Caylor and his crew at the North Alabama Horticultural Substation.

INTRODUCTION
Bedding plant growers frequently choose cultivars based on pack performance and adaptability to their production conditions. Garden performance of these selected cultivars within the marketing region is also an important factor in customer satisfaction and repeat sales. However, information on garden performance of bedding plant cultivars for Alabama may be difficult to obtain. Further, growing conditions vary widely from north to south within the state.

Therefore, in the summer of 2002, 179 bedding plant cultivars were evaluated on the Auburn University campus in Auburn, Alabama and 149 bedding plant cultivars were evaluated on the North Alabama Horticultural Substation in Cullman, Alabama. The objective of this study was to determine overall garden performance of summer-flowering annual plant cultivars (bedding plants) at two locations in the state. Results generated from this study will assist Alabama horticultural professionals and consumers in bedding plant selection. However, landscape performance may vary from year to year as climatic conditions affect performance.

METHODS
Bedding plant transplants were received from Barton's Greenhouse & Nursery Inc. in Alabaster, AL; Danziger Flower Farm in Cleveland, OH; Dennis Nursery & Greenhouse Inc. in Selma, AL; and Wright's Nursery & Greenhouse, Inc. in Plantersville, AL. Raised beds were prepared by tilling at both locations and the soil was amended and mulched with 3 inches of Aamendment grade@ (fine) aged pine bark. All beds were located in full sun. A commercially available fertilizer and dolomitic limestone was pre-plant incorporated into the beds based on soil test recommendations. No additional fertilizer was applied during the season. A preemergent herbicide, Pendulum 2G, was applied at 2.3 pounds per 1000 square feet. Rainfall was supplemented using overhead sprinkler irrigation at Auburn and drip irrigation at Cullman to provide an equivalent of one inch of water per week. No deadheading of spent flowers or other maintenance was performed on any of the plants with the exception of hand weeding. No pesticides were applied during the trial. Transplants were planted on May 15, 2002 at Auburn and May 16, 2002 at Cullman.

Each bedding plant entry was randomly planted in 3 replications of 1-4 plants (depending on expected plant size) in a rectangle block occupying half the bed width (2 feet). The beds were 4 feet wide and each plant block occupied 2 linear feet of bed space. Therefore, each replication was 2 feet by 2 feet.

Each of the replications for each plant entry were evaluated every two weeks from June 14 to September 20, 2002 at Auburn and June 27 to September 24, 2002 at Cullman. Plants were rated by the same individual at each locations using a 1 to 5 scale. Flowering plants were rated primarily on their floral displays, while size, shape, and freedom from insect or disease blemishes were also considered. A rating of 1 indicated a small display of foliage with no flowers present; 2--adequate amount of foliage with one or two flowers present; 3--sufficient foliage and floral display to be attractive in the landscape; 4--above average floral display and sufficient foliage display; and 5--superior floral display and sufficient foliage display. A rating of 0 indicated the plant had died. Ratings were made in whole number units. Any plant with an average rating of 2.50 or higher could be considered acceptable in the landscape and would be a worthwhile addition to a garden located in temperate zone 7 or 8.

RESULTS
The average performance rating for all bedding plant species tested at Auburn and Cullman is in Table 1. The best performing bedding plant species in the "a" category at Auburn were Coleus, Strobylanthes, and Heimigraphics. All the Coleus cultivars in this trial were the full sun types. In the "b" category was Lavender and Salvia coccinia, in the "c" category was Begonia, Calibracoa, Cleome, Melampodium, and Verbena, and in the "d" category was Marigold, Tithonia, Vinca, Zinnia, Creeping Zinnia, Argyranthemum. All the remaining species receive performance rating less than 2.5 and would not be suitable for the southern part of the state based on this trial. Many bedding plant species performed better at Cullman than at Auburn (14 species as indicated by "*" in table 1). Twenty-one of the 25 species tested at Cullman had average rating of 2.5 or higher with 11 in the "a" category, 5 in the "b" category, and 5 in the "c" category.

The average performance rating for bedding plant species tested while useful, does not provide a complete picture of performance through the season. The charts on pages 5-7 depict the average performance rating of bedding plant species for the two locations at each evaluation date. At Auburn, many bedding plant species increased in performance rating up to about the beginning of August and then rapidly declined. These species could be effectively used in the landscape for the first part of the summer but would need to be replaced in late summer or early fall. In contrast, other species increased in performance rating and maintained good performance until the end of the trial. These included Argyanthemum, Begonia, Coleus, Hemigraphis, Lavender, Salvia coccinia, Strobylanthes, and Vinca. A few species at Auburn did not show good performance for the duration of the trial, particularly Africa Daisy and New Guinea Impatiens. New Guinea Impatiens clearly could not tolerate full sun in Auburn. The patterns of performance over time observed at Auburn were not as apparent at Cullman. Species that performed well at Cullman generally maintained high performance ratings for the duration of the trial while those that performed less well only showed slow declines. Yet most of these maintained ratings of 2.5 or greater.

The average performance rating for all bedding plant cultivars tested at Auburn and Cullman is in Table 2. The best performing entry at Auburn was Coleus 'Sun Rose' with an average performance rating of 4.0. Coleus 'Trailing Red' and 'Christmas Candy' tied for second place with ratings of 3.9 while Colues 'Red Ruffles', 'Pineapple', 'Kiwi Fern', Salvia patens 'Blue Angle', and Strobylanthes (Persian Shield) all came in third with ratings of 3.8. Fifth place was shared by Coleus 'Gays Delight' and 'Palisandra' with ratings of 3.7 and Coleus 'Golden Sun', 'Tilt-a-Whirl', and Hemigraphis 'Silver Waffle' took sixth place with ratings of 3.6. Begonia 'Party White Green Leaf' stood alone in seventh place with a rating of 3.4 followed by Lavender 'Goodwins Creek' and by Begonia 'Party Red Bronze Leaf' and 'Party White Bronze Leaf' in eighth place with ratings of 3.3. Salvia coccinia 'Lady in Red' was in ninth place with a rating of 3.2 while tenth place was shared by Zinnia 'Dreamland Yellow', Marigold 'Bonanza Harmony', Begonia 'Party Pink Bronze Leaf', Lavender 'Otto Quast', and Tithonia 'Fiesta DelSol' with ratings of 3.1.

CHARTS FOR AUBURN TESTS
Chart 1 - compares African Daisy, Ageratum, Argyranthemum, Begonia
Chart 2 - compares Calibracoa, Celosia, Cleome, Coleus
Chart 3 - compares Coreopsis, Dosmos, Dusty Miller, Gazania
Chart 4 - compares Gomphrena, Hemigraphis, Lavendar, Marigold
Chart 5 - compares Melampodium, NG Impatiens, Nicotiana, Nierembergia
Chart 6 - compares Pentas, Petunia, Portulaca, Rudbeckia
Chart 7 - compares Salvia, Salvia c, Salvia p, Strobylanthes
Chart 8 - compares Tilhonia, Verbena, Vinca
Chart 9 - compares Zinnia, Creeping Zinnia

The best performing entry at Cullman was Coleus 'Tilt-a-Whirl with a performance rating of 4.3. Second place was shared by Vinca 'Heat Wave Raspberry' and 'Pacifica Red' and by Coleus 'Christmas Candy' with ratings of 4.1. Vinca 'First Kiss Coral' and Coleus 'Trailing Red' held third place with ratings of 4.0 followed by Vinca 'Heat Wave Mix' and Coleus 'Sun Rose' in fourth place with ratings of 3.9. Vinca 'Cooler Peppermint' and 'Cooler Icy Pink' held fifth place with ratings of 3.8 and sixth place was shared by Hemigraphis 'Silver Waffle', Coleus 'Kiwi Fern', Coleus 'Golden Sun', Salvia coccinia 'Lady in Red', Melampodium 'Million Gold', Vinca 'Victory Purple' and 'Cooler Red', and by Begonia 'Vodka', 'Cocktail Gin', and 'Super Olympia Rose' all with ratings of 3.7. Vinca 'Cooler Raspberry Red', 'Victory Red' and 'Cooler Mix', Verbena 'Imagination', and Begonia 'Party Rose Pink' took seventh place with ratings of 3.6 while eighth place was crowded by Begonia 'Party Scarlet', Marigold 'Bonanza Yellow', Salvia coccinia 'Rhea', Salvia splendens 'Vista Red', Strobylanthes (Persian Shield), Vinca 'Pacifica Punch', 'Cooler Blush', and 'Cooler Grape', Zinnia 'Phoenix Fire' and 'Star White' with ratings of 3.5. Marigold 'Little Hero Yellow' and Vinca 'Pacifica White', 'Cooler Pink', and 'Pacifica Lipstick Mix' shared ninth place with ratings of 3.4 and in tenth place was Argyranthemum 'Neptune', Begonia 'Super Olympia Red', 'Super Olympia White', 'Super Olympia Pink', and 'Party White Green Leaf', Cleome 'Royal Queen', Gomphrena 'Buddy Purple', Marigold 'Inca II Orange', 'Bonanza Mix', and 'Little Hero Harmony', Melampodium 'Derby', Salvia splendens 'Vista White', Vinca 'First Kiss Peach' and 'First Kiss' all with ratings of 3.3.

CHARTS FOR CULLMAN TESTS
Chart 10 - compares Ageratum, Argyranthemum, Begonia, Calibracoa
Chart 11 - compares Celosia, Cleome, Coleus, Cosmos
Chart 12 - compares Dusty Miller, Gazania, Gomphrena, Hemigraphis
Chart 13 - compares Marigold, Melampodium, NG Impatiens, Nicotiana
Chart 14 - compares Petunia, Portulaca, Rudbeckia, Salvia
Chart 15 - compares Salvia c, Strobylanthes, Verbena
Chart 16 - compares Vinca, Zinnia

EVALUATOR'S NOTES
Without question, the real show stoppers as a group in both the Auburn and Cullman trials were the sun tolerant Coleus, though Vinca performed well at the Cullman trial. The more unusual entries, 'Salvia patens' 'Blue Angle', Strobylanthes (Persian Shield), Hemigraphis 'Silver Waffle', and Lavender 'Goodwins Creek' performed admirably at Auburn and, where present, well at Cullman. The begonias also performed well into late summer. All of these were at their peak while most of the other plants were declining. At Auburn, many of the flowering annuals peaked early, set seed, and declined rapidly. These include the marigolds, cosmos, and coreopsis. By the end of the study, there were volunteer plants coming up and some had set flowers. This might have appeal for homeowners who like an informal garden. It appears that the study shows that in the South, summer annuals need to be successively planted in order to have an attractive garden throughout the long growing season. Homeowners need to be educated as to this fact. Growers and retailers may be able to extend their market season if enough consumers recognize this fact. One disappointment was the performance of the Rudbeckia hirta cultivars. We made an effort to obtain seed of several long standing and newly introduced cultivar but were disappointed at the performance of all of these. At first we thought there might be difference due to climate and irrigation system type between Auburn and Cullman, but performance was poor at both locations.

Table 1. Average performance rating by species of flowers grown in the 2002 summer trials
BEDDING PLANT AUBURN RATING1, 2 BEDDING PLANT CULLMAN RATING1, 2
Coleus 3.8 a NS Hemigraphis 3.7 a NS
Strobylanthes 3.8 a NS Coleus 3.6 a
Hemigraphis 3.6 a Salvia coccinea 3.6 a NS
Lavender 3.2 b Strobylanthes 3.5 a
Salvia coccinea 3.2 b Vinca 3.5 a *
Begonia 2.8 c Argyranthemum 3.3 a *
Calibracoa 2.8 c NS Begonia 3.3 a *
Cleome 2.8 c NS Melampodium 3.3 a *
Melampodium 2.7 c Ageratum 3.1 a *
Verbena 2.7 c Gazania 3.1 a *
Marigold 2.6 d Gomphrena 3.1 a *
Tithonia 2.6 d Marigold 3.1 b *
Vinca 2.6 d Celosia 3.0 b *
Zinnia 2.6 d Verbena 3.0 b NS
Zinnia creeping 2.6 d Portulaca 2.9 b *
Argyranthemum 2.5 d Salvia 2.8 b *
Cosmos 2.4 e NS Zinnia 2.7 c NS
Petunia 2.3 e Cleome 2.6 c
Portulaca 2.2 f Calibracoa 2.5 c
Salvia 2.2 f New Guinea Impatiens 2.5 c *
Dusty Miller 2.1 f Nicotiana 2.5 c *
Nierembergia 2.1 f Petunia 2.4 d NS
Celosia 2.0 f Cosmos 2.3 d
Penta 2.0 f Dusty Miller 2.3 d NS
Ageratum 1.8 g Rudbeckia 2.1 e *
Nicotiana 1.8 g . .
Rudbeckia 1.8 g . .
Salvia patens1.8 g . .
Gomphrena 1.7 g . .
Gazania 1.6 g . .
Coreopsis 1.6 g . .
New Guinea Impatiens 0.6 h . .
African Daisy 0.5h . .
1 Bedding plant mean performance ratings within columns that have the same letter are not different from others. Fisher's LSD (p=0.05).
2 * indicates that bedding plant mean performance rating between columns (locations) was higher than at the other location, NS indicates no difference between locations. Fisher's LSD (p=0.05).

Table 2. Average performance rating by cultivar of flowers grown in the 2002 summer trials
BEDDING PLANT CULTIVAR AUBURN MEAN* CULLMAN MEAN*
African Daisy Z-scape 0.5 -
Ageratum Blue Puffs 1.8 3.1
Argyranthemum Neptune 2.4 a 3.3
Argyranthemum Uranus 0.7 b -
Begonia Cocktail Gin 2.3 b 3.7 a
Begonia Cocktail Mix 2.6 b 2.8 b
Begonia Lotto Mix 2.7 b -
Begonia Party Mix 3.0 a 2.7 b
Begonia Party Pink Bronze Leaf 3.1 a -
Begonia Party Red Bronze Leaf 3.3 a -
Begonia Party Rose Pink 2.9 a 3.6 a
Begonia Party Scarlet 3.0 a 3.5 a
Begonia Party White Bronze Leaf 3.3 a -
Begonia Party White Green Leaf 3.4 a 3.3 a
Begonia Super Olympia Hellrosa 2.9 a -
Begonia Super Olympia Mix 2.3 b 3.0 a
Begonia Super Olympia Pink 2.6 b 3.3 a
Begonia Super Olympia Red 2.4 b 3.3 a
Begonia Super Olympia Rose 2.3 b 3.7 a
Begonia Super Olympia White 2.4 b 3.3 a
Begonia Vodka 2.9 a 3.7 a
Begonia Whiskey 2.4 b 3.0 a
Calibracoa Calimor Brilliant Cherry 3.0 a 2.5
Calibracoa Calimor Dark Red 2.5 a -
Calibracoa Calimor White 2.9 a -
Celosia New Look 2.0 3.0
Cleome Linda Armstrong 3.0 a -
Cleome Royal Queen 2.6 a 3.3 a
Cleome Sparkle Blush 2.7 a 2.3 b
Cleome Sparkler Rose 3.0 a 2.3 b
Cleome Sparkler White 2.9 a 2.3 b
Coleus Christmas Candy 3.9 a 4.1 a
Coleus Gay's Delight 3.7 a 3.5 a
Coleus Golden Sun 3.6 a 3.7 a
Coleus Kiwi Fern 3.8 a 3.7 a
Coleus Palisandra 3.7 a -
Coleus Pineapple 3.8 a 2.5 b
Coleus Red Ruffles 3.8 a 2.4 b
Coleus Sun Rose 4.0 a 3.9 a
Coleus Tilt-a-Whirl 3.6 a 4.3 a
Coleus Trailing Red 3.9 a 4.0 a
Coreopsis Garden Leader Yellow 1.6 -
Cosmos Cosmic Orange 2.7 a 2.3 a
Cosmos Cosmic Yellow 2.5 a 2.7 a
Cosmos Ladybird Mix 2.5 a 2.1 a
Cosmos Sonata Carmine 2.6 a 1.6 b
Cosmos Sonata Mix 2.2 b 1.7 b
Cosmos Sonata Pink 2.4 a 2.7 a
Cosmos Sonata White 2.1 b 2.7 a
Dusty Miller Silver Dust 2.1 2.3
Gazania Talent Gelb 1.6 a -
Gazania Talent Orange 1.7 a -
Gazania Talent Rosa Tone 1.5 a 2.9 a
Gazania Talent Weiss 1.6 a 3.2 a
Gomphrena Buddy Purple 1.6 a 3.3 a
Gomphrena Dwarf Pink 1.8 a 2.8 a
Gomphrena Strawberry Fields 1.5 a 3.1 a
Hemigraphis Silver Waffle 3.6 3.7
Lavender Goodwin's Creek 3.3 a -
Lavender Otto Quast 3.1 a -
Marigold Bonanza Harmony 3.1 a 3.0 a
Marigold Bonanza Mix 2.8 a 3.3 a
Marigold Bonanza Orange 2.7 a 2.9 a
Marigold Bonanza Yellow 2.8 a 3.5 a
Marigold Discovery Orange 2.0 c 2.7 b
Marigold Discovery Yellow 2.8 a 2.9 a
Marigold Inca II Orange 2.5 b 3.3 a
Marigold Inca Yellow 2.1 b 2.9 a
Marigold Little Hero Harmony 2.7 a 3.3 a
Marigold Little Hero Orange 2.8 a 2.8 a
Marigold Little Hero Yellow 2.9 a 3.4 a
Marigold Safari Mix 2.4 b 2.7 b
Melampodium Derby 2.7 a 3.3 a
Melampodium Million Gold 2.6 a 3.7 a
Melampodium Showstar 2.7 a 3.1 a
NG Impatiens Harmony Dark Lavender 0.5 a 2.1 b
NG Impatiens Harmony Dark Violet 0.6 a 1.9 b
NG Impatiend Harmony Light Orchid 0.7 a 2.1 b
NG Impatiens Harmony Light Purple 0.8 a 3.1 a
NG Impatiens Harmony Magenta 0.3 a 2.1 b
NG Impatiens Harmony Magnolia 0.5 a -
NG Impatiens Harmony Spicy Peach 0.3 a 2.8 a
NG Impatiens Harmony White 0.8 a -
NG Impatiens Orange Blaze - 2.9 a
NG Impatiens Super Bowl Magenta - 3.2 a
NG Impatiens Super Bowl Pink Dot 0.6 a -
NG Impatiens Super Bowl Vivid Magenta 0.7 a -
Nicotiana Saratoga Deep Rose 1.8 a 2.5 a
Nicotiana Saratoga Purple Bicolor 1.8 a 2.5 a
Nierembergia Purple Robe 2.1 -
Pentas New Look Hellrosa Pink 1.9 a -
Pentas New Look Pink 2.0 a -
Pentas New Look Red 2.1 a -
Pentas New Look Violet 2.3 a -
Pentas New Look Weiss-White 1.6 b -
Petunia Bicolor Burgundy 2.4 a -
Petunia Burgundy Madness - 1.7 b
Petunia Bicolor Purple 2.6 a -
Petunia Bordeaux Velvet 2.3 a -
Petunia Cascades Big Purple 2.3 a -
Petunia Cascadias Choice 2.5 a 2.5 a
Petunia Cascadias Pink 2.4 a -
Petunia Cascadias Pink Joy 2.6 a -
Petunia Cascadias Yellow Eye 2.3 a -
Petunia Dream Apple Blossom - 2.3 a
Petunia Dream Burgundy 2.2 a 2.6 a
Petunia Dream Midnight - 2.3 a
Petunia Dream Pink - 2.6 a
Petunia Dream Red - 2.2a
Petunia Madness Carmine - 2.6 a
Petunia Great Spark 2.0 b -
Petunia Midnight Madness 2.0 b 2.9 a
Petunia Mont Blanc - 2.9 a
Petunia Pink Madness - 2.3 a
Petunia Red Madness - 2.1 a
Petunia Scarlet 2.2 a -
Petunia Simply Madness 2.1 b 2.7 a
Petunia Spring Madness - 2.1 a
Petunia Sugar Madness - 2.1 a
Petunia Total Madness - 2.0 b
Petunia White Madness - 2.3 a
Petunia Yellow Eye - 2.7 a
Petunia Yellow Madness - 2.9 a
Portulaca Extra Rose 1.9 b -
Portulaca Sundial Mix 2.0 b 3.2 a
Portulaca Sundial Scarlet 2.5 a 2.7 a
Portulaca Sundial Yellow 2.5 a 2.7 a
Rudbeckia Autumn colors 1.7 a 1.9
Rudbeckia Autumn Color 1.7 a 1.9 a
Rudbeckia Becky Mix 1.9 a 2.1 a
Rudbeckia Cherokee Sunset 1.6 a -
Rudbeckia Cordoba 2.0 a 1.4 b
Rudbeckia Goldilocks 1.8 a 2.7 a
Rudbeckia Indian Summer 1.9 a 2.6 a
Rudbeckia Prairie Sun 2.0 a 2.3 a
Rudbeckia Sonora 1.8 a 2.5 a
Rudbeckia Toto Gold 1.7 a 2.1 a
Rudbeckia Toto Rustic 1.9 a 1.3 b
Salvia Empire Mix 2.3 a -
Salvia Firecracker Rose 2.1 a -
Salvia Flare 2.0 a 2.3 b
Salvia Vista Mix 2.1 a 2.7 a
Salvia Vista Purple 2.2 a 2.3 b
Salvia Vista Red 2.2 a 3.5 a
Salvia Vista White 2.4 a 3.3 a
Salvia c Lady in Red 3.2 a 3.7 a
Salvia c Rhea 1.8 b 3.5 a
Salvia p Blue Angel 3.8 -
Strobylanthes Persian Shield 3.8 3.5
Tithonia Fiesta DelSol 3.1 -
Verbena Imagination 2.2 b 3.6 a
Verbena Obsession Mix 2.8 a 2.3 b
Vinca Apricot Cooler 3.0 a 3.0 b
Vinca Cooler Blush 2.7 a 3.5 a
Vinca Cooler Grape 2.7 a 3.5 a
Vinca Cooler Icy Pink 2.8 a 3.8 a
Vinca Cooler Mix 2.6 b 3.6 a
Vinca Cooler Peppermint 2.6 b 3.8 a
Vinca Cooler Pink 3.0 a 3.4 a
Vinca Cooler Raspberry Red 2.9 a 3.6 a
Vinca Cooler Red 2.3 c 3.7 a
Vinca DanDiva Dark Purple 1.9 c -
Vinca DanDiva Lavender 2.2 c -
Vinca DanDiva White 1.9 c -
Vinca DanDiva White Glory 2.5 b -
Vinca First Kiss - 3.3 a
Vinca First Kiss Cherry 2.4 b 2.4 c
Vinca First Kiss Coral 2.5 b 4.0 a
Vinca First Kiss Peach 2.8 a 3.3 b
Vinca First Kiss Polka Dot 2.2 c 3.1 b
Vinca First Kiss Ruby 2.7 a -
Vinca Heat Wave Blue w/Eye 2.6 b 3.1 b
Vinca Heat Wave Mix 2.6 b 3.9 a
Vinca Heat Wave Raspberry 2.8 a 4.1 a
Vinca Pacifica Lipstick Mix 2.6 b 3.4 a
Vinca Pacifica Punch 2.8 a 3.5 a
Vinca Pacifica Red 2.6 b 4.1 a
Vinca Pacifica White 2.5 b 3.4 a
Vinca Victory Purple 2.6 b 3.7 a
Vinca Victory Red 2.5 b 3.6 a
Zinnia Dreamland Ivory 2.6 a 2.8 a
Zinnia Dreamland Mix 2.3 a 2.0 b
Zinnia Dreamland Pink 2.0 b -
Zinnia Dreamland Red 2.3 a 2.2 b
Zinnia Dreamland Rose 2.7 a 2.0 b
Zinnia Dreamland Yellow 3.1 a 1.9 b
Zinnia Phoenix Fire 2.7 a 3.5 a
Zinnia Profusion Cherry 3.0 a 2.2 b
Zinnia Profusion Orange 2.5 a 2.5 b
Zinnia Profusion White 2.7 a 2.9 a
Zinnia Star Gold 2.8 a 2.7 a
Zinnia Star Orange 2.7 a 3.2 a
Zinnia Star White 2.5 a 3.5 a
Zinnia Starbrite Mix B 2.9 a
Zinnia Zinnita Gelb 2.8a -
Zinnia Zinnita Gold B 3.0 a
Zinnia Zinnita Orange 2.5 a -
Zinnia Zinnita White 2.6 a 2.9 a
Zinnia creeping Star Bright Mix 2.6 2.9
* Bedding plant mean performance ratings within species in columns that have the same letter are not different from others. Fisher's LSD (p=0.05).

CHARTS