Grower Basics: Top 3 Factors For Successful Coleus Production

'Zesty Zucchini' from Hort Couture

Coleus production for some may appear easy and cause little concern throughout a growing season; however, for those less experienced, coleus may cause some  issues due to improper treatments or lack of crop knowledge. Many growers who call our facility with production questions do not have the correct information available to advise them on different problems. Many are unfamiliar with the pH of their water, the rate of fertilizer they are applying, or have little to no chemical application experience.  Therefore, I’ve chosen to discuss three basic factors for coleus production as well as other annual and perennial crop production. Moisture management, fertilization, and chemical applications are factors that less experienced growers need to understand in order to be successful in their operations.

To begin, plants thrive when all components of production are working cohesively.   The whole process begins mainly with proper water management, proper fertilization, and proper chemical applications. Coleus is a major crop that can become a production concern if one of these factors proves problematic. Of course, the greenhouse environment is a production factor, but for our purposes water management, fertilization, and fungicide applications will be the focus. These areas can cause growers the most concern when producing coleus or other annual and perennial crops.

The world of coleus has greatly improved over the years. New vegetative varieties have allowed growers to provide customers with more gardening options. In the past, seeded varieties were the only options and then were only viable as bedding plants for shade gardens. However, now many varieties thrive in the sun and are wonderful additions to large containers and hanging baskets. Here at Raker, the Hort Couture line of Under the Sea Coleus is fabulous! These varieties have unusual foliar structure and vibrant colors that will add interest to any gardening creation.   

Input Management

Whatever variety or light preference growers chose when selecting coleus, the three basic factors for production are the same.  First, coleus needs an evenly moist, well-drained media.  Improper moisture management is detrimental to crop production. Second, coleus thrives in a pH range of 5.5-6.0 and requires a fertilizer regimen of 150-250 ppm of a basic or acidic formulation such as 14-4-14, 18-3-18, or 20-10-20.  For finish production, begin fertilizing with 150ppm, once rooting is established, increase the rate and fertilize weekly or as needed to meet production requirements. Finally, treat coleus with a fungicide that prevents downy mildew.   There are many fungicides on the market that provide excellent DM prevention; however, chemical selection and application can be intimidating to growers, especially growers with little to no chemical experience. For this reason, before purchasing or applying chemicals talk to experienced growers, brokers, or chemical representatives and get the facts.  Fungicides, if used properly, can be great tools for growers, but careful selection should be applied before purchasing such products.

In conclusion, while new coleus varieties are giving growers more options in order to achieve  successful crop growth many factors need to be understood.  Moisture management, fertilization, and chemical applications are three basic factors for successful greenhouse production. Growing can be challenging, especially for those less experienced, but recognizing how these factors come together to affect crop growth is important if operations are to be successful.

Leave a Reply

More From Annuals...
crider-rd2-internal_Rough-Brothers_featured

July 1, 2015

Rough Brothers Is Acquired By Gibraltar Industries

RBI Solar Inc., Rough Brothers Manufacturing Inc. and affiliates have been acquired by Gibraltar Industries, a manufacturer and distributor of products for residential and industrial markets, for $130 million. Capitalizing on its 80 years of design-build experience and leadership as the largest greenhouse manufacturer in North America, Ohio-based RBI has established itself during the past five years as North America’s fastest-growing provider of photovoltaic (PV) solar racking solutions. The transaction will enable Gibraltar to leverage its expertise in structural metals manufacturing and materials sourcing to meet global demand for solar racking solutions. The company also announced that it anticipates its second-quarter 2015 financial results will be in line with its previous expectations. “Acquiring RBI is an important step in the transformation of Gibraltar into a company with a higher rate of growth and best-in-class financial metrics,” says Gibraltar CEO Frank Heard. “This acquisition directly aligns with key end markets and product platforms […]

Read More

June 30, 2015

Opportunities Abound For Women In Horticulture, Says Dosatron International’s Lela Kelly

My love for horticulture goes back to my grandparents who were farmers in upstate New York. My family’s involvement in agriculture left a lasting impression that has spanned decades, and still drives my passion for our industry today. I started my career in horticulture when I owned a greenhouse, nursery and garden center in Sayville, Long Island, N.Y. We specialized in ground cover production, later branching out to producing perennials and bedding plants.     I then went onto wholesale hard goods distribution. In the 1980s, I was the first woman salesperson on Long Island. What an eye opener that was! New York is a very special place, different from anywhere else in the country. You cannot imagine how difficult it was walking into greenhouses and nurseries as a woman, in a man’s world. Luckily, I grew up in New York City in an Italian family, who taught me great […]

Read More
Medal of Excellence Award

June 30, 2015

Get To Know The 9 Variety Finalists For Editor’s Choice And Industry’s Choice Awards

Greenhouse Grower‘s Evening Of Excellence reception is rapidly approaching. Here, you can learn more about the varieties that are finalists for the Medal Of Excellence Editor’s Choice and Industry’s Choice Breeding Awards. Thank you to the 2015 sponsors of Greenhouse Grower‘s Medal Of Excellence Awards, Landmark Plastic, Nufarm and Stockosorb. Editor’s Choice Asclepias ‘Monarch Promise’ (Hort Couture) Basil ‘Balsamic Blooms’ (EuroAmerican Propagators) Celosia ‘Dragon’s Breath’ (Sakata Seed) Dianthus Jolt Series (PanAmerican Seed) Salvia Grandstand Series (Green Fuse Botanicals) Scabiosa ‘Kudos Pink’ (Hishtil Nurseries) Industry’s Choice Basil ‘Balsamic Blooms’ (EuroAmerican Propagators) Bidens BeeDance Series (Suntory Flowers) Celosia ‘Dragon’s Breath’ (Sakata Seed) Dianthus Jolt Series (PanAmerican Seed) Lobelia ‘Starship Deep Rose’ (Kieft Seed) Vinca Valiant Series (PanAmerican Seed)     Join us Monday, July 13 in Ballroom 2 at the Columbus Convention Center to find out which varieties will receive the coveted awards. The reception begins at 5:15 p.m. and the ceremony […]

Read More
Latest Stories
WavePetunias-GrowIt_contest_featured

June 18, 2015

Wave Petunias Sponsors Photo Contest Through GrowIt! Ga…

The gardening season is heating up and the Wave Petunias Team wants to see the #WildestWave. The popular plant brand has joined forces with the GrowIt! Garden Socially app to host a two week contest in June that encourages Wave Fans to share and rate photos of their favorite Wave Petunias. The grand prize is a $100 gift card to the garden center of the winner’s choosing. “We are excited to work with GrowIt! and see our Wave Petunias tagged in cities from coast to coast,” says Claire Watson, brand manager for Wave. “Seeing gardeners’ creative photography, awarding a winner, and learning what each region likes about Wave Petunias will be extremely useful as we further promote our ‘Wow ’em With Wave’ ad campaign this season.” Gardeners can place an entry into the contest by downloading GrowIt!, filling out a profile, and uploading photos of Wave Petunias. Placing the tag #WildestWave in the photo’s comments section […]

Read More
Salvia 'Ember's Wish'

March 11, 2015

Annual Salvias – Not Just Red Bedding Plants Anym…

Salvias are popular — and they need not all be the same. Here are a few you know well, and perhaps a few you do not. All are easy to grow and may be found through a broker or grower.

Read More

February 18, 2015

California Spring Trials Sneak Peek: New Annuals For 20…

If you're like us and you can't wait until the 2015 California Spring Trials to see some of the new genetics that will be hitting the market in 2016, never fear. We contacted the breeders who will be displaying their new varieties in California in April, and they gave us a sneak peek. Check out our slideshow to see some of the new annuals making their debut to the trade this spring.

Read More

November 14, 2014

First Vegetatively Propagated All-America Selections (A…

All-America Selections (AAS) honors two vegetatively propagated impatiens with AAS winner status.

Read More

October 13, 2014

Growing Tips For Verbena

Rich Schoellhorn, product manager at Proven Winners, shares some tips for growing verbenas successfully.

Read More

October 13, 2014

Greenhouse Grower 2014 New Varieties Guide: Petunias [S…

Greenhouse Grower asked more than 40 breeders to send photos of new introductions they think are worth your attention. The result is the 2014 New Varieties Guide. See what petunias made the cut.

Read More

June 12, 2014

New Begonia Variety And Coleus Series, Plus Two Lobelia…

Terra Nova Nurseries introduces seven new varieties and one new series.

Read More

May 27, 2014

Two New Salvias Added To Southern Living Plant Collecti…

Two new salvia varieties are now available exclusively to growers from the Southern Living Plant Collection and Sunset Western Garden Collection.

Read More

May 9, 2014

New Petunias Making Their Debut In 2015

Take a look at the new petunia varieties that will be making their appearance in 2015.

Read More

April 23, 2014

Foliage Begonias May Be A Big 2015 Trend [Spring Trials…

A number of breeders debuted their rex begonia and begonia hybrid lines at 2014 Spring Trials.

Read More
Petunia 'Success Violet' from Benary

April 11, 2014

What’s New With Petunias For 2014? [Slideshow]

Breeders are rolling out great new petunia introductions for 2014. Take a look at the variety of petunias they have to offer.

Read More
Verbena 'Superbena Royale Whitecap' from Proven Winners

November 11, 2013

Three New Verbena Superbena Introductions From Proven W…

Three new varieties have joined the verbena Superbena line-up this year: 'Superbena Royale Plum Wine,' 'Superbena Royale Whitecap' and 'Superbena Violet Ice.'

Read More
Calibrachoa 'Mini Famous Double Blue' from Selecta

October 17, 2013

6 New Calibrachoa For 2013

Check out these lovely new introductions in calibrachoa.

Read More

October 10, 2013

Begonia ‘Silhouette Lemon Rose’ Doubles The Bloo…

Begonia ‘Silhouette Lemon Rose’ is a striking begonia hybrid with phenomenal basal and lateral branching. Plant sterility gives maximum continual flowering throughout the season with double the bloom number of a traditional non-stop begonia. Dark mahogany foliage with contrasting emerald green veining provides a dramatic contrast to the soft lemon yellow 1.5- to 2-inch diameter blooms that blush apple blossom pink in high light. This easy-care beauty is ideal for mixed pots and containers, hanging baskets or the summer border. For more information, visit PlantHaven.com

Read More
Petunia 'Flash Mob Bluerific' Burpee Home Gardens

October 7, 2013

18 New Petunias To Add For 2014

Tried and true, petunias are a garden staple. Here are some new introductions breeders are rolling out for your consideration in 2014.  

Read More
Verbena 'Hurricane Hot Pink' from Westflowers

October 7, 2013

New Verbena For 2014

Check out these eight new verbena varieties and consider them for your 2014 greenhouse production.  

Read More
Dahlia Dalaya Shari from Selecta

September 25, 2013

4 New Dahlias For Your 2014 Season

Looking for new dahlia varieties to incorporate in your crop mix? Here are 4 beauties your customers will love.  

Read More
'Wall Street' Coleus from Dummen/Red Fox

September 25, 2013

4 Colorful New Coleus For 2014

Gorgeous foliage makes these new introductions must-haves for next year.  

Read More