A holly fern in the landscape. Photo Credit: Matt Lollar, University of Florida/IFAS Extension – Santa Rosa County
On a recent episode of Celebrity Jeopardy, one of the categories featured answers all about ferns. The category got me thinking about all the confusing things about ferns.
First of all, are ferns even plants at all? Yes, but there are some unique characteristics that make them stand out. Ferns are vascular plants like most all of our other landscape and house plants, but they do not produce flowers, fruits, and seeds like other vascular plants. Instead, they produce spores in small, round structures called sporangia that are usually on the undersides of leaves. Sporangia are also found on fungi and algae.
A pretty noticeable feature about ferns is their leaves. Fern leaves are called fronds which consist of many small leaflets called pinnae. Fronds have a feather-like appearance that give most ferns a fine texture that softens the landscape. Sterile, non-spore producing fronds called fiddleheads develop from the center of the plants in early spring. They are called fiddleheads because they are curled like the top of a fiddle when they first emerge. The fiddleheads of some fern species are prized by chefs for their delicate flavor and crunchy texture. Fertile, spore producing fronds develop later in the season.
A Japanese painted fern in the landscape. Photo Credit: Matt Lollar, University of Florida/IFAS Extension – Santa Rosa County
When grown outdoors, most ferns do best in spots that receive filtered light or a bit more shade. However, some species of ferns that are grown indoors may need a little more light. Ferns like high humidity environments which is why we usually see them growing in floodplains and in wetlands in the wild. Indoor ferns should be watered thoroughly whenever the soil surface begins to feel dry. Choose potting soils with a high percentage of peat moss for its moisture retaining properties. And make sure you don’t over-fertilize.
If you’re going for a tropical look, but don’t want to lose your landscape, then you’ll get some great ideas from this episode of “Gardening in the Panhandle LIVE!”.
Most of the Florida Panhandle falls within USDA Plant Hardiness Zone 9a. The USDA Plant Hardiness Zone Map displays the average annual extreme minimum winter temperature for locations throughout the United States. Based on NOAA weather data, the date of the last spring freeze can range from February 16 to March 15 depending on location in the Florida Panhandle. It’s important to note these figures are based on averages and will vary from year to year.
Some plants need protection from freeze events. More information on protecting plants from cold weather can be found in the article “Preparing the Landscape for Cold Weather”.
There are quite a few native plants that can give your landscape a tropical look. Plants that have a tropical look usually have bright flowers, variegated leaves, and/or coarse textured foliage. A native that comes to mind is Florida anise that grows well in shaded areas and is available in varieties with variegated foliage and light green foliage. The native firebush (Hamelia patens) will freeze back some years, but provides a tropical focal point with its showy flowers and unique foliage. Some oakleaf hydrangea selections with chartreuse colored blooms can also provide a tropical aspect.
Other plants that give a tropical feel, but aren’t native to Florida include cast iron plant, canna lilies, red hot poker, fatsia, farfugium, holly fern, African false hosta, and loquat trees. Some tropicals that freeze back, but will come back in the spring include ornamental gingers and tumeric. To view other suitable plants for the Florida Panhandle check out the Florida-Friendly Landscaping Plant Guide.
Row covers and frost cloths can provide some insulation for sensitive plants. The thickness of the material used can vary significantly and offer different levels of freeze protection. It’s important the material covers the plants all the way to the ground, not just the foliage. More information on row covers in the article “Using Row Covers in the Garden” from the University of New Hampshire.
It’s important to wait to clean up and prune freeze damaged plants. Mid-to-late March is a good time to cut back plants that have been damaged from a freeze event. However, the longer you wait the better. More information for caring for these plants can be found in the article “Treating Cold-Damaged Plants”.
Coastal climates differ from mainland environments. In the winter, temperatures in these two places will be similar, but windchills may be exaggerated in coastal areas. Additional wind tends to dry plants out faster, but spots near water may allow for some experimentation with more tropical plant material.
Do any of the leaves change color down here in the fall? The most common answer is that there is none here in the land of evergreens. The prevalence of oaks (Quercus spp.) and pines (Pinus spp.) see to that. There is hope. Deciduous trees put on a show as the need for photosynthesis reduces. Chlorophyll production stops replaced with anthocyanins and carotenoids. As they take over, the beautiful display we all love begins. Several tree species thrive in the panhandle and have great autumn foliage. Once you know which, you’ll see a color pallet that would make DaVinci himself drool.
Tree for all seasons
Sweet gum (Liquidambar styraciflua) is a larger tree growing upwards of 75 feet tall with a 50 foot spread. The canopy has an early conical shape which evolves into an oval as the tree ages. This tree is excellent for local parks and to provide shade in your front yard. Red tinged flowers produced in spring combined with multi-shaded leaves provide interest throughout the year. However, autumn this tree comes into its own. As the days shorten and cool these leaves begin their journey to the ground by taking on shades of yellow, orange, red, or burgundy.
IFAS photograph Heather Kalaman
Panhandle Delight
A unique tree growing primarily in the Panhandle, the Florida maple (Acer floridanum) puts on an excellent autumn show. At that time of year, the leaves will change to a muted yellow or orange color. Reaching 60 feet high and 30 wide this oval canopied tree is ideal for shade or along streets. Fall is the only time you will see color changes from this tree, but in summer you’ll be treated to that classic maple leaf shape.
IFAS Photograph
An Oddity of a Tree
The bald cypress (Taxodium distichum) is a tree rife with oddity. Growing at times as high as 80 feet with a roughly 35 foot spread these trees excel in your lawn. Be wary as when grown in wet environments they develop “knees” thought to help aerate roots in standing water. Ball shaped cones are the primary reproductive organs of this tree. For the purposes of this article, we’ll focus on the color changing needles. When winter is nigh, they change from pale green to an eye catching yellow or rusty copper. One of the few deciduous conifers, the needles will fall off revealing peeled bark for winter interest.
IFAS Photograph Kathy Warner
To Sum it Up
These are but a few of the trees in north Florida known to change color in the autumn. The list is not overly exhaustive, but there are several in this category. For more information on landscape trees, see this Ask IFAS document, or contact your local extension agent for additional information on this and any topic regarding your gardens and more.
Several years ago the Escambia County Master Gardener Volunteers added a Leopard plant, Farfugium japonicum to the office demonstration gardens. This was a new plant for me and I was immediately impressed with look and performance of this plant in a filtered shade garden.
Leopard plant’s attractive leaves and flowers make it an accent in the shade garden. Photo by Beth Bolles, UF IFAS Extension Escambia County.
Although not native to the United States, Leopard plant make an interesting addition to the Florida garden. The large green leaves can provide a tropical look throughout the entire year since it is hardy in growing zones 7-10. An added bonus of the Leopard plant are spikes of bright yellow flowers in the fall and winter months. When you use Leopard plant as a mass planting, it certainly becomes the focus in our cooler months.
Leopard plant on display in Downtown Pensacola. Photo by Beth Bolles, UF IFAS Extension Escambia County.
There are many cultivars of Leopard plant and the selections with white (‘Argenteum’) or yellow (‘Aureomaculatum’) patterns on the leaves give the plant it’s common name. There are also cultivars with curled or crinkled leaves. All plants will thrive in partial shade with some additional water when rainfall is lacking. The clumps will continue to enlarge so you can often share a piece with a friend after a few years.
Houseplants can soften up the interior of your home and help clean the air. They can also supplement your holiday decorations and help create stunning focal points. To help determine what plants do best under certain conditions and to give pointers on plant care, this month’s Gardening in the Panhandle LIVE! was all about houseplants.
A spider plant on a coffee table. Photo Credit: University of Florida/IFAS
Environmental Conditions for Houseplants
Unless you live in a glass house, you’ll probably want to choose houseplants that do well in low light conditions. A guide for what light level different houseplants prefer can be found on the Gardening Solutions Light for Houseplants page. This page also provides useful tips on supplemental lighting.
Some houseplants are better at cleaning the air than others. A list of houseplants that do a good job improving indoor air quality can be found on the Gardening Solutions Houseplants That Clean the Air page.
The best way to determine if your houseplants need water is your own green thumb or whatever finger you choose to stick in the potting mix, but for some interesting information on outdoor soil moisture meters check out this informative publication on soil moisture sensors.
Houseplants need a good quality, well-drained potting mix to thrive. Tips on selecting a potting mix can be found on the Gardening Solutions Container Media page.
Houseplant Pests
One of the best ways to rid houseplants of insect pests is to set the plants outside for a few days and let the pests move on. For some information on pest control products in and around the home check out the publication Natural Products for Managing Landscape and Garden Pests in Florida.
Fungus gnats are mainly a nuisance, but some species can feed on living plant tissue. Darkwinged fungus gnats are known to feed on ferns, orchids, and geraniums.
Houseplant Propagation
One way to increase your houseplant population and save a few dollars is to propagate your own plants. The University of Florida/IFAS created the Plant Propagation Glossary to help with any propagation questions you may have.
Air layering is a propagation technique that not only allows the prospective plant to thrive from the nutrients of the mother plant, but it also saves space.
A moth orchid (Phalaenopsis spp.) outdoors. Photo Credit: University of Florida/IFAS
Specific Species Info
Orchids in the genus Phalaenopsis are easier to care for than other genera of orchids. The American Orchid Society provides some great tips on caring for orchids indoors. Some people choose to water their orchids with ice cubes. The Ohio State University has a publication that provides some more insight on watering Phalaenopsis orchids with ice cubes.
A lot of cacti do well indoors. A popular cactus during the holiday season is Christmas cactus. Christmas cactus have interesting foliage, but their blooms are what people want to see. Some tips on getting your Christmas cactus to bloom on time and general care information can be found in this Christmas Cactus Preparation fact sheet.
Have you ever wanted to grow fruit trees indoors or do you want some tips on bringing containerized fruit trees indoors for the winter? The Growing Fruit Crops in Containers publication provides some good tips on growing fruit trees indoors.
Unless you have a house with a lot of windows or a sunroom, plumeria don’t make the best houseplants. They need at least six hours of sunlight per day and need to be at least three years old to bloom. If you are interested in propagating plumeria, then check out this publication on propagating plumeria from cuttings.
