Florida Wildflowers: Butterfly Weed

Butterfly Weed – Photo courtesy Mary Salinas

Butterfly weed, Asclepias tuberosa, has been gaining in popularity in the perennials market as it attracts adult butterflies to feed on its nectar and monarch caterpillars to feed on its leaves. Gardeners are also turning to use more Florida native plants in their landscapes.

Independent or native nurseries tend to be the best source for plants but the supply can be quite limited. There are more sources for seed, though, online. Try to purchase seed from a local or Florida grower as those seeds will be better adapted to our climate.

Butterfly Weed – Photo courtesy Mary Salinas

When growing butterfly weed from seed, transplant your new plants into their garden spot when they are still quite young, 2-3” tall, as they will be more successful in getting them established. Choose your planting location wisely. Once you plant it in a particular area, don’t move it. They are finicky about being moved from spot to spot.

For more information:

Monarch Butterfly

Asclepias tuberosa Butterfly Weed, Indian Paintbrush

Florida Wildflower Foundation

 

Heating up with Hardy Hibiscus

Each time I travel to central and south Florida and observe the wonderfully flamboyant tropical flora, I am reminded of the unique and frustrating climatic characteristics of Northwest Florida.  Our weather is tropical enough through the summer to sustain virtually everything our friends to the south grow, but winters north of the Big Bend are just cold enough to prevent long-term success with most tropical species.  However, the genus that is maybe most synonymous with tropical color, the Hibiscus (it even has its own texting emoji!), contains several species that are hardy through our winters.  The best landscape plant of these hardy Hibiscus species is creatively (sarcasm) called Hardy Hibiscus or Giant Rose Mallow (Hibiscus moscheutos) and is an absolute star in the Panhandle, bringing the beauty of the tropics to your yard!

Hibiscus ‘Starry Starry Night’ – Photo courtesy Daniel Leonard

Rose Mallow is a native perennial species that occurs in sunny wetlands across the eastern U.S.  This species can grow 7-8’ in height in its natural, unimproved state and possesses the largest flowers of any hardy perennial, some varieties easily eclipse 12” in diameter.  Rose Mallows bloom through the heat of our long summers and return reliably each winter unfazed by frost.  The flowers also happen to be a favorite of butterflies and hummingbirds and bring beneficial wildlife to the landscape.  These characteristics and the trend towards the use of pollinator friendly, low-maintenance native perennials in landscapes quickly made Rose Mallow a jewel for plant breeders and now virtually all major horticultural brands have a line of Hardy Hibiscus available at garden centers, in varying sizes, flower color and leaf color/form.  Recent breeding efforts have focused on introducing plants with enormous, richly colored flowers held on compact plants with attractive foliage.  The results have yielded two series and three individual cultivars that I consider superior selections and are more than worthy of inclusion in your garden:

  • Summerific® Series by Proven Winners. This series is comprised of four robust (up to 5’ in height) cultivars, ‘Cherry Cheesecake’ (bicolor magenta and white flowers), ‘Berry Awesome’ (purplish lavender flowers), ‘Cranberry Crush’ (a red you really have to see to believe), and ‘Perfect Storm’ (notable for its deep purple foliage).
  • Luna Series by Monrovia. This series is notable for its ultra-compact (3’ in height or less) size and characteristically large flowers.  It is also composed of four cultivars, ‘Luna Red’ (deep red), ‘Luna Blush’ (white, fading to pink near flower margins), ‘Luna Pink Swirl’ (pictured and my favorite, bicolor swirly flowers), and ‘Luna White’ (white with a red center).

    Hibiscus ‘Luna Pink Swirl’ – Photo courtesy Daniel Leonard

  • ‘Starry Starry Night’ by Walter’s Gardens. (Pictured) This cultivar combines dark purple to black leaves with swirled pale and dark pink flowers.  It has performed very well in my landscape and if I could only grow one, this might be it.
  • ‘Lord Baltimore.’ The classic, large growing cultivar with bright red flowers that is widely available and easily found.  An oldie (introduced in 1955) but a goodie.
  • ‘Midnight Marvel’ by Walter’s Gardens. A “hot off the press” new cultivar that is currently difficult to find due to popularity, though some online outlets have them available in small sizes.  This one is worth your patience.  Sporting deep red blooms on near black foliage, there’s nothing else like it in the landscape.

In addition to being gorgeous plants, Rose Mallows are extremely versatile in the landscape and could not be easier to grow.  Because the size varies so greatly (from the diminutive 30” tall ‘Luna’ series to the 8’ tall unimproved species), there really is a place for one in every garden.  I like to use the smaller cultivars in large containers to facilitate moving them around where their floral display has the greatest impact or to create a tropical effect where in ground plantings are not an option (pool decks, patios, etc).  The larger cultivars make spectacular specimen plantings in perennial and shrub beds and even make a really dense, striking hedge (just know they disappear in the winter).  Be sure to give them as much sun as possible, as this will enhance the number of flowers on each plant and darken the foliage on the cultivars with purplish/black leaves.  Too little sun will result in fewer flowers and lighter green foliage.  As wetland plants, Rose Mallows enjoy regular water, either from rainfall or irrigation; they will let you know when they need it – their large leaves readily wilt under drought stress, somewhat like Hydrangea.

For low-maintenance, native, pollinator friendly, cold-hardy tropical color, you need look no further than Rose Mallow.  These perennial shrubs come in all sizes and colors and fit any landscape!  Look for the above listed series and cultivars at better garden centers and online retailers and enjoy the oohs and ahhs elicited when people first get a glimpse of Hardy Hibiscus in your landscape!  Happy Gardening!

 

Invasive Species Workshop and Air Potato Challenge June 6th Panama City!

Invasive Species Workshop and Air Potato Challenge June 6th Panama City!

Dr. Steve Johnson, UF/IFAS Associate Professor of Wildlife Ecology will be the featured speaker on June 6th

June 6th is a great day to learn about all types of invasive species that threaten natural areas in Northwest Florida!

The UF/IFAS Extension Bay County office will have multiple educational exhibits with living samples of species of concern from 9 a.m. – 5 p.m. on Wednesday, June 6th. This is a multi-agency effort to inform citizens about the impact of invasive plants and animals and how they can help reduce introduction and spread. For full details see the Bay_Invasive Workshop Flyer

We are pleased to announce our partners Florida Fish and Wildlife Conservation Commission (FWC) and Science and Discovery Center of Northwest Florida will be on hand to share information about caring for exotic pets and current management plans for invasive species such as Lionfish, Aquatic Weeds, and how to surrender an animal on designated Pet Amnesty Days.

At noon there will be a special guest speaker for a bring your own lunch & learn “Exotic Invaders: Reptiles and Amphibians of Concern in NW FL.” Dr. Steven Johnson, UF/IFAS Associate Professor of Wildlife Ecology, will talk about exotic reptiles and amphibians we should be aware of that may occur in our area.

In the morning, we will be focusing on the invasive air potato vine with the distribution of air potato leaf beetles for biological control. Need air potato leaf beetles to manage the air potato vine on your property? Please register here http://bit.ly/bayairpotato to receive beetles – they will be distributed from 9 a.m. – noon on June 6th.

Learn more about the success of the Air Potato Biological Control program at http://bcrcl.ifas.ufl.edu/airpotatobiologicalcontrol.shtml

#invasivespecies

Wild Azaleas

Wild Azaleas

There is something to be said for being a longtime resident. While it does limit ones outlook from a global perspective, it promotes focus on perfecting applicable traits which are close to home.

Azalea and bug: Wild Piedmont Azaleas (Rhododendron canescens) and a bumble bee.

The unique, and very pleasant, environment of north Florida is an excellent example of near perfection on a localized basis.  The weather (within reason), the fauna and the flora are tailored to a superior quality of life, especially the spring blooming native plants.

The human residents of the panhandle can easily see this in a native plant which blooms in the spring.  Wild azaleas make random appearances, but their cultivated cousins from Asia are now the province of retail establishments.

Azaleas are member of the Rhododendron genus which includes flowering shrubs of the same name which grow in more northern latitudes.  Their popularity as flowering perennials has led to the development of more than 10,000 cultivars worldwide which please almost every taste for a profuse and showy burst of color.

These plants have species native to southwest Europe, Asia, and North America. They are believed to date back 70 million years and have an ancestor in common with blueberries and pieris.

Many of the azaleas which grace the yards and gardens in the southeast are traced back to east Asian stock.  These cultivars had been grown for millennia, but reached Europe in the early 17th Century when wealthy estate owners were seeking a new and unique look to their landscapes.

When azaleas arrived in America there were 26 different native azaleas already growing here.  At least four of these grow naturally in Florida and can be presently seen in natural settings, as well as, managed landscapes.

Like the long cultivated Asian varieties, the azaleas native to Florida prefer acidic soils and filtered light.  The can be found in forested areas and near streams or rivers.

The native azaleas are rather scraggly and upright when very young, but will spread out and fill in as they mature. The large, dark green leaves bend the branches gently to form a cascading appearance down to the ground.

A single specimen in a formal landscape should be allowed at least four to five feet of spread to develop into its natural form. These plants are very sensitive to dry soil, but the soil should drain freely of excessive moisture.

A thick mulch of three inches deep is recommended to help ensure adequate root growth when cultivated out of their natural environment. Roots are located in the top several inches, even in well-drained sandy soils, so adequate mulching is critical to success.

Pruning of these natives is seldom necessary except to control shoots extending above the normally mounded shape. Azaleas bloom on the previous year’s growth so any pruning should be done after flowering, but before July.

Mass azalea plantings add a stark color contrast to any landscape. The green background of March and April with clusters of boldly bright blossoms is a striking sight.

The wild azaleas add an enduring continuity to the ever-changing landscape in contemporary life.  Some things should never change, especially in comfortable north Florida.

The Mystery of Florida Betony

Figure 1: Florida Betony, Stachys floridana. Credit: UF/IFAS Range Cattle Research & Education Center.

If you look closely at your yard, there is a good chance that you will find a plant that, depending on who you ask, is considered either a native wildflower or a weed and there are more than a few species that fit this description. If, upon even closer inspection, you find a plant with root tubers that resemble egg casings or even a rattlesnake’s rattle, you’ve stumbled upon Florida Betony.

Stachys floridana is a perennial broadleaf commonly referred to as rattlesnake weed due to it’s fleshy, white, segmented underground tubers. The plant has an erect stem with leaves that are opposite, shovel-shaped and coarsely serrated. The plant structure is very similar to mint. Flowers, emerging in late spring, are pinkish-purple in color. These inflorescences will also produce fruit, consisting of four nutlets. However, reproduction of the plant and it’s propensity to spread through lawns and gardens primarily occurs through dense root tuber development. Florida Betony’s growing range was originally confined to the state of Florida, but the commercial nursery trade played a major hand in dispersing the plant across the Southeast in the mid-1900’s. It can now be found as far west as Texas and as far north as North Carolina.

Figure 2: Tubers of the Florida Betony. Credit: Jill Bebee, UF/IFAS Gulf County Master Gardener.It can now be found as far west as Texas and as far north as North Carolina.

This time of year is when Florida Betony thrives. The moderate temperatures of fall and spring are the prime growing periods for Betony. In the heat of the summer, the above-ground structure of the plant will struggle and often disappear completely, only to reemerge in the fall. As a lawn weed, managing tuber development is key to controlling this plant. Applying herbicide to the leaves and stalk may seem at first to have conquered the weed. However, in most cases the tuber will simply regenerate. Glyphosate (Roundup) can be used effectively for control in ornamental plant beds where no turf is present. Be careful when spraying herbicides around trees, shrubs and other desirable plants as any foliar contact will cause phytotoxicity. If you have an infestation of Florida Betony in your turfed areas, there are a few options for control.  Regular applications of three way broadleaf herbicides, such as mixtures of 2-4D, Dicamba and Mecoprop, are effective at suppressing this pesky plant. For more information and options, please contact your local county extension office or see the supporting information links below. Always refer to the product label for specific uses, precautions and application rates when using any herbicide.

Supporting information for this article can be found in the following the UF/IFAS EDIS publication, “Florida Betony Biology and Management in Turf” by J. Bryan Unruh, Ramon G. Leon, and Darcy E. P. Telenko: http://edis.ifas.ufl.edu/pdffiles/EP/EP38800.pdf

 

 

 

 

 

 

 

Florida Wildflowers: Lyreleaf Sage

Florida Wildflowers: Lyreleaf Sage

The spike of lavender blooms of lyreleaf sage. Photo credit: Mary Salinas.

Spring wildflowers are popping up along our roadways and along woodland edges. One of our native perennial beauties you can enjoy right now is lyreleaf sage, Salvia lyrata, with spikes of tubular lavender flowers rising about a foot above the ground. The blooms, which occur late winter through late spring, attract bees and butterflies and provide them a good source of nectar. It also is a good host plant for aphids, which in turn, can make it a good banker plant and feeding station for ladybug larvae.

The irregularly-shaped leaves grow in a rosette hugging the ground and can make for a natural ground cover in part shade areas. These attractive leaves are easily identifiable by their purple stems, edges and veins in sharp contrast to the bright green of the rest of the leaf. Lyreleaf sage belongs to the mint family and shares the characteristic square-shaped stems and two-lipped flowers.

Leaves of lyreleaf sage form a ground hugging rosette. Photo credit: Mary Salinas.

Whatever garden conditions you have, lyreleaf sage should be able to adapt. It tolerates drought, flooding and most soil types. Be aware, though, that this beauty produces lots of seed and can spread quickly. This can be a very desirable trait for establishing a wildflower meadow but challenging if you want to keep it contained in a small area. To manage its’ spread, remove flower spikes after the blooms fade to prevent most seed formation.

Lyreleaf sage can usually be found in native plant or local nurseries; seed can be found through online wildflower seed sources.

For more information:

Planting and Care of Salvias in Landscapes

Florida Wildflower Foundation