Saturday, April 28, 2012

Rockledge, FL -- USDA plant hardiness zone 9 (sometimes called Zone 9a, as well). Here's a quick run-down on the basics of a water-sparing hydropinic drip system.
This system uses pumps to drive nutrients -- liquid fertilizer -- through a tubing system, and can be adapted for gardening in summer heat by installing shade cloth over the arched bows above the plants.

The system is also suited to survive occasional high winds as well, owner Theresa Riley said.

Hydroponics for Brevard farmer's markets

It's good to start small, said Theresa Riley, owner, with husband Kevin, of Rockledge Gardens, the largest plant nursery and garden center in Brevard County.
Theresa Riley, owner of Rockledge Gardens
She should know. Riley is the daughter of Rockledge Gardens founders Mary and Harry Witte, and one of six children who have run the family business since 1960 at the location on U.S. Highway 1, three miles south of S.R. 520. Her father Harry started out in 1948 with a road-side vegetable stand near St. Augustine run on the honor system, and now Riley is bringing the family business into the future with hydroponics.
'Our goal is to produce enough fresh vegetables to stock a farm market here at Rockledge Gardens,' Riley notes on her website. 'We will use natural methods for growing this food, with no harmful pesticides or chemicals. It's a very clean and efficient method of farming.'
Riley offered advice to backyard gardeners during a recent interview at Rockledge Gardens' new hydroponic facility adjacent to the nursery.
'Florida soil, particularly in Brevard County tends to be poor,' Riley said, 'It needs amendments -- organic matter -- to improve it.' As a backyard gardener, 'You don't want to get overwhelmed, you don't want to get discouraged.' Homeowners do not need to plant long rows of crops, said Riley. 'It is better to start with a raised bed garden, where you have full control' over the soil and fertilizer.


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Urban Gardening

These days more Brevard residents seem to be out working the back 40 -- the back 40 square feet, that is. Urban vegetable garden projects are sprouting up all over, ranging in size from window box herb planters to lawn-sized crop production areas.
'I think people are coocooning more,' said Merrideth Compton, who grows greens and vegetables at her digs in Cocoa Village. 'I think it's about feeling good, about improving your own space,' Compton said, 'Growing vegetables costs a whole lot less and is also rewarding at the same time.' Originally from the Northeast, Compton remembers gardening with her Grandmother as a child. She's come full circle. The garden '...did help sustain us. And I think it skips a generation. Not only do I grow vegetables, I'm starting to think the way my Grandmother did, I now cook the way my Grandmother did.'
Horticulture Agent Sally Scalera, a Homeowner education specialist with Brevard County Extension Service notes public interest in edible plants has grown steadily in the last two years. 'Right now, our "Be Healty, Grow your own Vegetables" course is the most popular, and has been for a while now. I don't see that changing,' Scalera said in a telephone interview from the Extension Service office in Cocoa. 'For the last few years now, people have been willing to pay $5 or $10 for a course like that, but not so much for courses on general landscaping,' Scalera said.
Along with the health aspect, Scalera said many people who participate in Extension Service classes also voice concern over fresh produce prices as a big part of their motivation to grow their own. The Extension Service is part of a cooperative with the University of Florida's Institute of Food and Agricultural Sciences, as well as various other state colleges and federal agencies. The aim is to provide cutting edge information and expertise to the public. The service offers dozens of low-cost classes per year at various locations around the state, and announced on the Extension Service website. Next class up is canning and preserving food, which Scalera said is every bit as popular as the food growing classes.
Farmers markets have taken root in the community as well, Scalera points out. 'All vendors at Brevard Farmers markets (that the Extension Service sponsors) have to grow or produce at least 50 percent of what they sell,' Scalera said. 'Plus, people get the meet the people who are growing their food.'
Emerging agricultural technologies can make small areas such as the average urban 1/4 acre more productive than ever before. The trend is up, not out.
As the official Farmer for Rockledge Gardens' new hydroponic vegetable production area, Diana Salopek maintains such a high-tech garden. On a recent sunny morning she was performing routine maintenance on the nutrient-laden irrigation system which feeds herbs and vegetables in the facility's Vertigrow system.
'The plant root in various combinations of growing medium,' Salopek said, flushing the drip irrigation lines in an open-sided pump house which ticks away like a heartbeat, forcing liquid fertilizers through a network of pipes and small hoses to deliver measured amounts of nutrients to a series of buckets, each filled with a plant or two. Rockledge Gardens began experimenting with the new system last January, and their hydroponic farm is located adjacent to the main facility on U.S. 1, three miles south of S.R. 520.
'The lines need to be flushed at intervals to prevent mineral build-up in the lines from the liquid nutrients,' Salopek said. Its called a soil-less system because the growing medium -- a combination of volcanic Pearlite chips, vermiculite and coconut coir doesn't break down the way organic soil does, but is sterile and reuseable. 'It just holds the plant roots in place,' Salopek said, while liquid plant food drips over them several times a day. Salopek has grown herbs and vegetables in North Carolina and run a couple of farmer’s market before coming to the facility.
The highly-efficient system uses less than half the water and land required for conventional farming for comparable yield. 'We're on city water here, so that's important,' said Rockledge Gardens owner Theresa Riley. The produce is certified organic. 'We use biological pest control here,' Riley said, which combines beneficial insects and organisms to control pests and plant ailments, along with horticultural oils. 'The standard (for certified organic) is that you can harvest the same day that you spray, and the sprays are safe for workers to breathe.
Rockledge Gardens opened a weekend farmers market about three weeks ago as a service to their nursery customers, Riley said.
'It is price, 'but more and more people are asking questions about their food,' she said, such as, "Where did this come from, Is it safe?"



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More info:
University of Florida/ Extension Service Solutions For Your Life classes:
http://solutionsforyourlife.ufl.edu/families_and_consumers/