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Easy Spring Color with Petunias

Easy Spring Color with Petunias

Florida is a fun state to live in for many reasons.  You are never more than an hour or two away from a great beach, it never gets bitterly cold, and the fishing is phenomenal.  I could go on.  More than all that though, my favorite thing about living in Florida is the ability to have something blooming year-round, even in the cool months.  This year, the stars of the spring show in my backyard container garden have been new selections of an old favorite, the Petunia. 

Petunias, a close relative of Tobacco, originally hail from South America.  And while the original petunia species were not a valuable crop like Tobacco, enterprising European explorers realized the group had horticultural potential.  By the late 1800s, plant breeders had begun hybridizing wild petunia and the petunias gardeners now recognize took shape!  Fast forward to today and petunias are the most popular bedding plants in the US, with annual petunia sales topping $260 million (USDA’s Census of Horticultural Specialties).   More than 700 petunia cultivars have received plant patents, comprising all manners of sizes and flower colors.  This year, there is even a controversial genetically modified petunia called ‘Firefly’ hitting the market that displays bioluminescence – it literally glows in the dark! 

Petunia 'Jazzberry' growing in a container.

Petunia ‘Jazzberry’ growing in a container. Photo Credit: Daniel Leonard, University of Florida/IFAS Extension – Calhoun County

In the past, petunias struggled in the Deep South, as they were often ravaged by various fungal pathogens induced by our too-warm weather.  These old-fashioned petunia cultivars, while pretty on store shelves, don’t perform as well in the heat as newer varieties bred for warmer, wetter conditions and that possess enhanced vigor and disease resistance.  When shopping for petunias in the Panhandle, avoid anonymous petunia varieties of questionable quality and look for modern named hybrids, for example the Supertunia Series, the SuperCal series, and the Wave series.  These improved hybrid petunias are resilient to pesky diseases like Botrytis Rot, flower heavily over a longer period, and tolerate temperature extremes better.  Within these series, individual cultivars vary in flower color, flower size, and overall plant size (ranging from mounding monsters growing 4’ in diameter to tiny dwarfs that barely span 18”).  I grew several varieties from each of these series this year and all performed wonderfully.  There’s a petunia variety for every garden!

Petunia 'Supertunia Royal Magenta'.

Petunia ‘Supertunia Royal Magenta’. Photo Credit: Daniel Leonard, University of Florida/IFAS Extension – Calhoun County

Once you’ve picked a quality cultivar, petunias are relatively easy to grow!  In the Panhandle, petunias are grown as cool season annuals – planted in the fall (October-November) and grown through about May, finally playing out once the summer heat arrives.  Petunias prefer full sun and are at home in containers filled with a quality potting mix (container size will vary from medium to large depending on the growth habit and mature size of the petunia).  Petunias are not particularly drought tolerant and prefer regular water and fertilizer to look their best.  I water my containers each day during sunny and warm conditions, backing off to every other day or less during cooler, cloudy weather.  Because of their floriferous nature, petunias are also relatively heavy feeders and appreciate supplemental fertilizer.  I top dress petunia containers with Osmocote or similar slow-release fertilizer at planting and supplement with liquid fertilizer every week to ten days during the peak of the flowering season. 

Petunia 'Supertunia Mini Vista Scarlet'.

Petunia ‘Supertunia Mini Vista Scarlet’. Photo Credit: Danial Leonard, University of Florida/IFAS Extension – Calhoun County

Though it’s past petunia planting time this season, be on the lookout for petunias to hit nursery shelves next fall.  Simply pick a good hybrid cultivar, plant in a container in full sun, water and fertilize regularly, and you’ll be rewarded with no-fuss, months-long color until the summer heat finally draws the curtain on the show!  For more information about petunias or any other horticultural topic, feel free to contact us at the UF/IFAS Calhoun County Extension office.  Happy gardening!

Diversification of Dooryard Fruit

Diversification of Dooryard Fruit

Here in North Florida, it is not uncommon to see a few citrus trees in a residential landscape. With Florida being the second highest producing state of citrus, it is not out of the normal to see them when you are out and about. They are a great option to keep a lush green aesthetic in your yard. But, what other options are there for the homeowner that wants to add some edible diversity to their landscape? In this article we will be discussing a few of the many edible landscape choices that can add both diversity and a sweet treat to your yard.

A popular edible landscape option is the rabbiteye cultivar of blueberry. The rabbiteye blueberry plant is considered easier to grow for the first time blueberry grower in comparison to the southern high bush cultivar. This cultivar thrives in acidic soils and requires a soil pH of 4.0 to 5.5. When planting, the use of pine bark mulch is a great organic method to satisfy the soil pH requirement. Mixing composted pine bark mulch in the soil and adding additional mulch after the bush is planted will add to the soil’s organic matter over time. Mulching also aids the establishment of young plants and moderates soil temperatures and weed control. For variety selection, mid-to-late season rabbiteye cultivars are best for Northwest Florida, as they are more cold tolerant and less susceptible to lose their flowers and young set fruit in late winter/early spring frosts. Common mid-to-late season rabbiteye’s are ‘Vernon’, ‘Brightwell’, ‘Powderblue’, ‘Tifblue’, and ‘Georgia Giant’. Because blueberry plants are not “self-unfruitful”, they will require more than one variety to cross-pollinate with in order to produce fruit. Two is great, but three plants will also encourage larger fruit set for you and your family to enjoy!

Blueberry Set Fruit, Jackson County Master Gardener Demo Garden

Another option that has steadily grown interest in the Florida Panhandle is the apple tree. There are two known cultivars of apple that are acclimated to the North Florida region due to their low chill hour requirement cold tolerance. This is the ‘Anna’ Apple and the ‘Dorsett Golden’ Apple. Apple trees will perform best in full sun locations of the yard and prefer a well-drained soil. The chilling hour requirement for these cultivars of apple are between 400-600 hours. You will begin to see the fruit ripen in the months of May to June. The ‘Anna” Apple has been compared to the well known ‘Red Delicious” that is best known in northern region of the United States. Planting should occur in early spring and planting holes should be big enough that the root system does not become over crowded from limited expansion space. There is no UF/IFAS fertilizer recommendation for the apple tree because it is not commercially produced in Florida, but generally a fertilizer such as 10-10-10 can be used.

‘Anna’ Apple, Photo Credit: UF/IFAS NFREC

The blackberry is a great choice as well for an edible landscape. There are several blackberry species that are native to Florida. Most blackberries produce thorns on their shoots, but many new cultivars have been developed as thornless. When selecting your planting location, low-lying areas should be avoided to deter from over-flooding of your plants. Blackberries thrive best in well-drained soils and high air flow and should be planted between December to February. Pollination of the plant is very important to ensure the quality and quantity of the fruit produced; blackberries range from self-fruitful to self-unfruitful depending on the cultivar. ‘Apache’, ‘Flordagrand’, and ‘Choctaw’ are a few examples of many blackberry cultivars available. The first year after the blackberry has been established, it will only produce new shoots with no berries. These shoots are called primocanes. The second year, berries will produce on these shoots and then be called floricanes. It is important to cut the tip off the primocanes after they have reached about 3 ft in height to encourage the shoot to create lateral branches. Floricanes will die off after they have produced fruit. Trellises can be used as well to encourage the plant to grow upright and off the ground.

For more information, please use the following links:

https://edis.ifas.ufl.edu/publication/MG359

https://edis.ifas.ufl.edu/publication/MG368

https://edis.ifas.ufl.edu/publication/HS104

 

Yellow Spring Wildflowers in Florida

Yellow Spring Wildflowers in Florida

Rudbeckia hirta, commonly known as black-eyed Susan, is a vibrant and hardy wildflower with golden-yellow petals and a dark brown central cone. Photo by kburgess, Adobe Stock.
Rudbeckia hirta, commonly known as black-eyed Susan, is a vibrant and hardy wildflower with golden-yellow petals and a dark brown central cone. Photo by kburgess, Adobe Stock.

Florida’s diverse ecosystem showcases a remarkable array of native wildflowers that burst into vibrant colors, particularly during the spring season. Cultivating these indigenous blooms not only enhances the beauty of your lawn but also fosters biodiversity. Florida’s spring landscape comes alive with a vibrant tapestry of native wildflowers, each species contributing its unique charm to the natural scenery.

Yellow, a color that beckons pollinators, especially bees and butterflies, is a prevalent hue among these wildflowers. Many have evolved to showcase bright yellow tones, attracting pollinators, and ensuring the vital transfer of pollen for the continued existence of the plant species. In this spotlight, we’ll explore a selection of my favorite yellow-blooming wildflowers: Leavenworth’s tickseed, dune sunflower, and black-eyed Susan.

Leavenworth’s Tickseed

Coreopsis leavenworthii, commonly called Leavenworth's tickseed, showcases brilliant yellow flowers with distinct maroon markings, contributing to its charm as a cheerful and attractive wildflower in gardens and meadows. Photo by Sunshower Shots, Adobe Stock.
Leavenworth’s tickseed showcases brilliant yellow flowers with distinct maroon markings, contributing to its charm as a cheerful and attractive wildflower in gardens and meadows. Photo by Sunshower Shots, Adobe Stock.

Coreopsis, Florida’s state wildflower, boasts 14 native species flourishing in North Florida. Among these, Leavenworth’s tickseed (Coreopsis leavenworthii), predominantly found in Florida, graces the Panhandle region with its distinctive yellow, daisy-like flowers adorned with dark centers and scalloped yellow ray florets.

Thriving in open areas, flatwoods, and prairies, this annual or short-lived perennial becomes a beacon of color in the spring landscape. Ideal for wildflower gardens, Leavenworth’s tickseed requires adequate space for reseeding, best achieved by planting one to two feet apart in the spring for optimal flowering. The plant quickly establishes itself in moist soils, benefiting from occasional pruning or mowing to encourage a second flush of flowers.

Preferably rooted in sandy, well-drained soil, Leavenworth’s tickseed demands full sun exposure for maximum flower production, with moist soils playing a pivotal role in reseeding and maintaining this distinctive species.

Beach Sunflower

Adapting well to both coastal and inland environments, the beach sunflower attracts butterflies and other pollinators with its vibrant blooms. Photo by Nahhan, Adobe Stock.
Adapting well to both coastal and inland environments, the beach sunflower attracts butterflies and other pollinators with its vibrant blooms. Photo by Nahhan, Adobe Stock.

The beach sunflower (Helianthus debilis), also recognized as the dune sunflower, is renowned for its coastal charm and nearly year-round blossoms. Adapting gracefully to both coastal regions and inland landscapes, this sunflower showcases two-inch flowers resembling daisies or sunflowers, boasting yellow petals and brown centers. A captivating trait is its tendency to follow the sun throughout the day.

When cultivating beach sunflowers, it is essential to allocate ample space for their spreading nature. To maximize visual impact, consider planting them in masses, maintaining distances of three to four feet between each plant. As beach sunflowers may become unruly over time, periodic removal of old stems is advisable. Encouraging new plants to sprout from seeds contributes to a healthier growth pattern. Light trims every three months can further enhance the foliage’s vibrancy and overall maintenance. While acting as an annual in freezing temperatures, the beach sunflower generally reseeds itself and displays admirable tolerance to coastal elements, including salt and wind.

For optimal growth conditions, planting in full sun encourages abundant flowering, although the plant can tolerate light shade for part of the day. Preferably, choose well-drained sandy soils, avoiding persistently moist conditions to ensure the overall health and vitality of the beach sunflower.

Black-eyed Susan

Black-eyed Susans are not only visually appealing but also serve as valuable nectar sources for pollinators, attracting butterflies, bees, and other beneficial insects to the garden or natural habitat. Photo by Green Stock Creative, Adobe Stock.
Black-eyed Susans are not only visually appealing but also serve as valuable nectar sources for pollinators, attracting butterflies, bees, and other beneficial insects to the garden or natural habitat. Photo by Green Stock Creative, Adobe Stock.

Black-eyed Susan (Rudbeckia hirta), a classic native bloom, captivates with its widespread availability and versatile nature as an annual, biennial, or perennial. This resilient plant grows to a height of one to two feet, showcasing rough-textured leaves and deep-yellow aster-like flowers with dark brown disk flowers forming a central dome.

When incorporating black-eyed Susans into your landscape, consider their suitability for mixed wildflower beds, where they effortlessly self-seed in open or lightly mulched areas. Maintaining proper spacing of 14 to 18 inches between plants, vigilant monitoring during extended dry periods, and providing deep watering, when necessary, contribute to the overall health and vitality of these iconic blooms.

Thriving in well-drained soils, black-eyed Susan showcases adaptability to various soil types. Whether exposed to full sun or partial shade, the plant optimizes its blooming potential, enhancing the visual appeal of any landscape.

Encourage Wildflowers in Your Landscape

Selecting native wildflowers adapted to your landscape’s specific soil, light, and drainage conditions is crucial for success. If initial attempts fail, try different species until you find the perfect match, emphasizing the importance of using the right plant in the right place. Thorough watering aids in establishment, but once native wildflowers are established, they generally require minimal irrigation. Avoid overwatering to prevent fungal and rot issues.

Native wildflowers in Florida typically do not need additional fertilization, as it can lead to rapid growth and increased susceptibility to pests and diseases. Embrace the natural resilience of these plants by avoiding unnecessary fertilization. Encourage the persistence of wildflowers by embracing self-seeding, maintaining open, lightly mulched areas for natural germination, and being vigilant when weeding.

Florida’s spring blooming wildflowers, including Leavenworth’s tickseed, beach sunflower, and black-eyed Susan, contribute to the state’s biodiversity. Selecting the right species and providing proper care allows us to cultivate these native blooms and actively participate in conserving Florida’s precious ecosystem.

2024 Gardening in the Panhandle LIVE! Palm Selection and Care

2024 Gardening in the Panhandle LIVE! Palm Selection and Care

On March 7th we held our second Gardening in the Panhandle LIVE! of 2024 and the panel tackled Palm Selection and Care. We had lots of great questions from viewers, and this is a recap of some of the main points covered and references shared.

A few spoilers of the discussion – palms are not trees, they are grasses; and Sago “palms” and Coontie “palms” are cycads, not palms! Check out the video for explanations.

Although there is always the possibility of cold damage if winter temperatures drop below average, for the best success choose palms more likely to survive “normal” winters. These include Cabbage Palm, Mule Palm, Pindo Palm, Needle Palm, and Windmill Palm.

How you plant a palm is very important to long term survival. Follow steps in these publications:
Planting Palms https://gardeningsolutions.ifas.ufl.edu/care/planting/planting-palms.html
Transplanting Palms in the Landscape https://edis.ifas.ufl.edu/publication/EP001

Maintaining palms can also be tricky – especially if you are performing tasks out of routine rather than need.

Pruning palms is a hot subject because it is very commonly done incorrectly leading to nutrient deficiency, bud exposure to cold and wind damage, spread of disease, and attracting insect pests. Proper techniques can be found in Pruning Palms https://gardeningsolutions.ifas.ufl.edu/care/pruning/pruning-palms.html

Palms have specific nutritional needs so understanding proper fertilization is key. Your Palms Might be Hangry https://blogs.ifas.ufl.edu/orangeco/2021/03/08/your-palms-might-be-hangry-here-is-how-to-feed-them/ explains how to feed them right!

Several diseases can cause palms to become unstable and unsafe. Thielaviopsis Trunk Rot of Palm https://edis.ifas.ufl.edu/publication/PP143 and Ganoderma Butt Rot of Palms https://edis.ifas.ufl.edu/publication/PP100 are two of concern.

A great resource for palm diagnostics is this interactive website Palm Key Diagnostics https://flrec.ifas.ufl.edu/palmprodpalm-problems-key/

If you missed this episode, you can watch the episode on YouTube at https://www.youtube.com/playlist?list=PLNZx4ZSSTl-rgIrEqGJYaCJjguZTuxPXc

Make sure to register for our next episode on April 11th Temperate Fruit for NW Florida!

Palm tree in a garden.
Local Youth Invited to Participate in Junior Jubilee Watermelon Contest!

Local Youth Invited to Participate in Junior Jubilee Watermelon Contest!

by Mark Mauldin, Agriculture & Natural Resources, Washington County

Calling all watermelon producers, commercial growers to gardeners. Planting season is just around the corner. As you plan your plantings don’t forget about the Big Melon Contest at the Panhandle Watermelon Festival. The festival and the contest have been summer-time staples in the Central Panhandle for decades. Don’t miss out on the opportunity to showcase your skills as a grower and a shot at some serious prize money.

To make the contest fun for growers of all types of watermelons, a winner and first runner-up will be recognized for each variety of melon entered in contest*, with the heaviest melon in the class winning $50 and the first runner-up $25. In addition to the variety classes, there will be a $300 grand prize paid for the overall heaviest melon in the contest and $200 for the first runner-up.

New for 2024, the Junior Jubilee Contest is a melon growing competition open only to kids 18 and under. To participate in the Junior Jubilee Contest, kids must sign-up this Spring (3/4/24 – 3/22/24). Upon signing up, kids will receive seeds and growing guide. Through the Spring the kids will grow their own melons and then bring their 2 biggest back, to enter the contest at the festival. All kids who bring a melon back for the contest will be recognized at the melon auction and prizes will be given for the 10 biggest melons, including a $200 grand prize for the biggest melon. For more information or to enter the Junior Jubilee Contest contact the Washington County UF/IFAS Extension Office. Click the link below for more details about the Junior Jubilee Contest.

Junior Jubilee Contest Info

There is no cost to enter a melon in the contest. However, melons entered in the contest are donated to the festival and will be sold via auction. Proceeds of the auction will go to help off-set the costs of next year’s festival. All contest melons will be on display during the festival and their variety, weight, and grower will be announced during the auction.

The 2024 Panhandle Watermelon Festival will be Friday June 21st and Saturday June 22nd in Chipley, FL. The Friday night concert festivities will be held at Jim Trawick Park and Saturday’s events (including the melon auction) will be at the Washington County Ag Center. The auction will begin at 12 noon on Saturday.

Melons being entered in the contest will need to be delivered to the Washington County Ag Center prior to the festival. Melons will be received and weighed-in at the Ag Center Wednesday 6/19 between 8am and 4pm and Thursday 6/20 between 8am and 7pm central time. If you have melons that you would like to enter in the contest but are unable to deliver during the specified times, contact Mark Mauldin prior to 6/19 to make arrangements. Pick-up may be possible, to the extent practical, provided arrangements are made in advance.

The Washington County Ag Center is located at 1424 Jackson Ave. Chipley, FL 32428.

If you have any questions regarding the contest, contact Mark Mauldin at the UF/IFAS Extension, Washington County Office (850-638-6180 or mdm83@ufl.edu).

Photo of contest packet.