May 17, 2012
Petunia: Finished Production Tips
Grow Time (From Rooted Cutting) A petunia in a quart container with one pinch per plant (ppp) takes five to six weeks of grow time. In a gallon container with one ppp, grow time is estimated at eight to nine weeks. Petunias in 12-inch baskets with four ppp take 10 to 11 weeks. Fertilizer Rate Apply 200 to 250 parts per million (ppm) nitrogen (N), using a calcium-magnesium formulation of a balanced fertilizer with low phosphorus (i.e. 13-2-13, 14-4-14 or 15-5-15 Cal-Mag) or a more acidic ammonium-containing fertilizer (i.e. 20-10-20 or 20-9-20) if keeping the pH low is a challenge. Electrical conductivity (EC) should be around 2.3 to 2.7 mS/cm (SME) with pH between 5.4 and 5.8. Supplemental iron-chelate (Sprint 138 or 330) as a drench (4 ounces/100 gallons) is recommended to avoid iron deficiency-related tip yellowing, especially under hot conditions and elevated pH (>6.0). Growing Media High-quality media with […]
March 7, 2012
Lobelia: Finished Production Tips
Grow Time (From Rooted Cutting) A lobelia in a quart container with one pinch per plant (ppp) takes six to seven weeks of grow time. In a gallon container with two ppp, grow time is estimated at eight to nine weeks. Lobelias in 12-inch baskets with four to five ppp take 10 to 11 weeks of grow time. PinchOne pinch, ideally done in propagation, is enough for small and midsize pots. Trailing types will benefit from a second pinch a few weeks after transplant. The second pinch is not as crucial for Techno Heat Upright types. When pinching, use excellent sanitation, including viricides like Virkon-S, RelyOn or Trisodium phosphate (TSP). Growing Media High quality media with good porosity is critical for best growth. Peat-based mixes, like Fafard 2 Mix or 1P Mix, or bark-based mixes, like Fafard 4P Mix or 3B Mix work well. Fertilizer Rate Apply200 parts per million […]
March 7, 2012
Verbena Propagation Tips
Upon Arrival Verbenas can be stored in a cooler down to 38 degrees F (5 degrees C) for up to 24 hours. Rooting Time Unrooted cuttings typically take about three to three and a half weeks to root in a 105-sized plug. These are fast rooters and are generally very easy to root. Growing Media High-porosity media like Fafard 1P Mix is ideal. Fertiss and Ellepot are also common. Keep pH at 5.8 – 6.2 and test media E.C. and pH at around three weeks after sticking and adjust as needed. Pinching Verbenas do need to be pinched. Try to leave at least 2 nodes below the pinch. Be sure to use good sanitation. Temperature Media temperatures of 72–74 degrees F are ideal. Once the cuttings are fully rooted, the temperatures can be lowered to control growth. Misting Spray CapSil at 2 to 4 ounces per 100 gallons one day […]
April 28, 2017
Growers Developing Strategies for Better Plant Growth R…
Whether it’s through new liner programs or more consistent grouping of plants, growers continue to find ways to effectively manage their plant growth regulator programs.
April 27, 2017
Hoffman Nursery Cheers On the Next Generation of Hortic…
Hoffman Nursery was a sponsor of the recent 41st National Collegiate Landscape Competition, an event that offers several opportunities for companies in the green industry to meet and recruit the next-generation of horticulturists.
April 26, 2017
Monitor Potential for Heat Stress in Your Geraniums
Heat stress, which can originate from a lack of air flow around baskets suspended in high areas, causes foliar bleaching and chlorosis of zonal geraniums.
April 25, 2017
Kelly Norris: Diversity is the Key to Growing the Ornam…
Offering a selection of ornamental grasses that cater to customer needs will keep sales from stagnating.
April 25, 2017
Out-Of-This-World Plant Nutrition: Fertilizer Company I…
NASA scientists are growing vegetables on the International Space Station using Florikan’s controlled release fertilizer.
April 25, 2017
41 New Vegetative Petunias From California Spring Trial…
With the abundance of new introductions for the 2018 retail season, we’ve made it easier for you to sift through them by separating out the vegetative petunias from the Northern sites, which includes selections from Westhoff Flowers, Sakata Ornamentals, Danziger, Proven Winners, and Syngenta flowers.
April 24, 2017
Ian Baldwin Offers Examples From Grower-Retailers on Pr…
In March, Baldwin wrote a blog advising grower-retailers to consider raising their prices this spring. The post inspired a number of creative suggestions.
April 22, 2017
American Floral Endowment Announces Winners of 2017 Pau…
Four students pursuing careers in horticulture now have scholarships to help them along the way, thanks to the American Floral Endowment.
April 20, 2017
Terra Nova Nurseries Releases Two New, Attractive Begon…
Stardust is the latest addition to Terra Nova Nurseries’ existing T Rex Begonia series, and Silver is the first introduction to the company’s new Spectre Begonia series.
April 19, 2017
Suppliers Can Offer Technical Solutions for New Cannabi…
Here’s a look at how a few manufacturers have partnered with growers to make their transition into cannabis a smooth one, whether it’s through hands-on guidance or partnering with other industry leaders.
April 18, 2017
Cool Combos From CAST 2017 – Editor’s Choic…
With container gardening becoming more of a lifestyle among consumers than a trend, and breeders continuing to put more effort in container mixes and components, I feel I would be remiss if I didn't share some of the special combinations that not only caught my eye at California Spring Trials, but absolutely took my breath away and made me want to immediately get started gardening.
April 17, 2017
LumiGrow’s Latest Lighting Research Highlighted in Grow…
Industry leaders representing a broad range of vegetable, floriculture, and cannabis producers gathered to learn how to implement modern lighting strategies for their own production.
April 16, 2017
Danziger Invests in Continued North American Business G…
As part of a new business structure for its North American market, Mike Fernandez has been appointed Market Manager North America for Bedding Plants and Perennials, and Kate Zvara was named as Key Account Manager and Retail Specialist.
April 15, 2017
How Oregon Growers Are Making Lean Improvements With He…
The Oregon Nursery Lean Consortium recently helped two Pacific Northwest growers realize significant productivity gains and labor savings.