When It’s Too Hot to Garden.  What to Do?

When It’s Too Hot to Garden.  What to Do?

I don’t know if you’ve noticed, but it’s been hot outside.  Like really, scorching, hellacious, dog days hot.  In this weather pattern we’ve been in, it’s hard to make yourself do non-essential stuff outside that doesn’t involve swimming and so our gardens go by the wayside.  In my opinion, that’s totally okay!  Give yourself a rest from the garden and landscape chores for the next couple of weeks and get your fall gameplan ready.  The following are some things to think about over the next few weeks to prepare yourself for the coming cooler weather!

Soil testing in centipedegrass. Photo courtesy of Daniel Leonard.

Get your soil tested.  If you’re an in-ground vegetable gardener or just like to have an attractive lawn/landscape, performing a simple soil test can offer either peace of mind that your soil’s pH and fertility is good or give you a nudge to schedule some needed amendments.  Though I don’t recommend fertilizing lawn grass this late and there’s no need to fertilize the garden before it gets planted in mid-late September, you can certainly begin to source and price fertilizer for the appropriate time based on your test results.  However, now IS the perfect time to get lime out in a vegetable garden if your pH has sunk beneath the recommended 6.5.  Lime takes weeks to months to begin to alter soil chemistry so the sooner the better if it is needed! 

Order seeds.  While I love to support local farm stores and plant nurseries, you are limited with the vegetable and flower varieties you can plant by what they have in stock.  I enjoy trying new/improved and heirloom plant varieties each year and, most of the time, these can only be found by ordering online.  For the latest in vegetable and cut flower varieties with a nice mix of heirloom cultivars thrown in also, I can recommend Johnny’s Selected Seeds, Baker Creek Heirloom Seeds, Seed Savers Exchange, and other similar purveyors – all of these are great places to look.  Continue to purchase your more common standbys through local outlets but, this year get different and try new things by ordering online!

Develop a garden/landscape plan.  I doubt there’s a gardener amongst us who wouldn’t like to rearrange things a bit outside.  Maybe you planted your lettuce a little too closely together last year, you’ve been dreaming of installing a new flower bed, or you really want to do a full garden/landscape renovation.  The best way to be successful at any of these things is to get outside (or at least look out from behind a window in the A/C), take stock of what is already there, the space that is or might be available, research what plants or varieties might do well in your yard/garden (your local UF/IFAS Extension office is a great resource for this), and begin to sketch your ideas out.  This planning step WILL save you time and money by ensuring you don’t purchase too many plants, by picking plants that will do well, and ensuring you install everything at the correct time.

So, take advantage of the heat, stay inside, and work up your garden gameplan together this August – fall is just around the corner.  For help with soil testing, recommendations on plant varieties to purchase, or working up a garden/landscape plan tailored to you, contact your local UF/IFAS County Extension Office.  Stay cool and happy gardening!

Mole Crickets

Mole Crickets

A mole cricket has a face only a mother could love. They are so strange looking, in fact, that in the past week I’ve had two people ask me what they were. They have large, round, helmet-like heads, undersized eyes, and massive front claws used for digging. Unlike your garden-variety crickets, which really don’t cause any major damage to home landscapes, the mole cricket is quite the turfgrass menace. Instead of hopping about aboveground, they tunnel beneath the lawn and feast on the roots and leaves of grass, often destroying entire yards. They are also vegetable pests, going after tomatoes, cabbage, and peppers.

A young mole cricket. Its round head and large front claws distinguish it from other cricket species. Photo credit: Lucy Adams Stevenson
A) Horizontal and B) vertical view of a generalized tawny mole cricket burrow showing
1) horn, 2) 1st constriction, 3) bulb, 4) 2nd constriction, 5) turn-around,
6) surface tunnel, and 7) deep tunnel. Figure 1 from Nickerson et al. 1979. Ann. Entomol. Soc. Am. 72(3):438-440.

Mole crickets spend most of their time below ground and form burrows for hiding, laying eggs, and traversing through their territory. In mating season, males create a monotone song that averages 88 decibels—as loud as a motorcycle! The call comes from their burrows, which have funnel-like openings that expand at the surface, creating amplification comparable to a horn.

Beneficial larra wasp parasitizing a tawny mole cricket. Photo credit: UF IFAS

The tawny mole cricket (Neoscapteriscus vicinus) is the most common to our area and is an invasive species from South America. UF IFAS has had a specific research program related to mole cricket management since the late 1970’s. One successful outcome of this program has been the introduction of a biological control species, the larra wasp (Larra bicolor). The wasp manages mole cricket populations by stinging and temporarily paralyzing crickets. A female will then deposit an egg into the mole cricket’s body. The cricket recovers and goes about its daily routine until the egg hatches, at which point the larval wasp feeds on and eventually kills the mole cricket. Along with the wasp and release of flies and a nematode that also manage mole crickets, the biocontrol methods introduced between the 1980’s and 2004 have resulted in a 95% reduction in mole cricket populations in north Florida.

If you are seeing mole crickets, you can attract larra wasps to your property by planting shrubby false buttonweed or partridge pea plants, which the wasps feed on. If you have serious damage from mole crickets, check out this thorough Mole Cricket Integrated Pest Management Guide, or contact the horticulture agent at your local county extension office to get a site-specific recommendation for management.

Sun Kissed Bulbs

Sun Kissed Bulbs

Trying to rejuvenate your flower beds can be challenging during these hot days and warm nights. This presents a chance to carefully select and plant varieties that not only endure but thrive in the scorching summer season. Luckily, Florida gardeners have many options, including bulbs. Bulbs are known for their ability to flourish and produce beautiful flowers year after year with proper care. Three of these, Aztec Lily, Walking Iris, and Spider Lily, can be planted during the month of August.

Aztec Lily.

AZTEC LILY

The Aztec Lily, a tender perennial bulb, belongs to the Sprekelia genus in the amaryllis family and is one of only three known species. Among them, Sprekelia formosissima stands out for its striking and showy flowers. Growing from 12 to 36 inches, Aztec Lillies are typically colored from scarlet to deep crimson, though there are also pink and white varieties available. Each bulb has the potential to produce multiple flower stalks annually, usually in sequence rather than all at once. The flowers exhibit bilateral symmetry, resembling the velvety appearance of an orchid. Aztec Lilies should be planted in full shade to part sun and can tolerate acidic and alkaline soil. These plants are incredibly versatile and well-suited for various landscaping purposes, such as mass planting, border decoration, adding accents to garden designs, and attracting butterflies to butterfly gardens.

Walking Iris.

WALKING IRIS

The Walking Iris, Neomarica spp., is a clumping herbaceous perennial, growing to a height of 18 to 36 inches. These plants boast attractive light green leaves and small Iris-like flowers that bloom periodically throughout the spring, summer, and fall seasons. Although the flowers have a short lifespan, they still add a delightful splash of color, making the Walking Iris an interesting addition to any landscape. The Walking Iris thrives in both full and partial shade, making it a versatile choice for your garden. While it can adapt to various soil types, it truly flourishes in moist areas. When grouped together in shady areas, the Walking Iris creates a lovely and eye-catching display. Its upright foliage, coupled with the occasional blooming flower, makes a bold statement in the overall landscape.

SPIDER LILY

Spider Lily.

Native to Florida, the Spider Lily (Hymenocallis latifolia) is a captivating perennial featuring alluring foliage and fragrant white blossoms. This clumping plant exhibits long, dark green leaves that emerge from an underground bulb, gracefully reaching a height of 24 to 36 inches.  During the summer and fall seasons, the Spider Lily adorns itself with numerous white flowers, known for their enchanting fragrance, remarkable longevity, and delicate appearance. For optimal growth, place your Spider Lily in either full sun or part shade, and ensure the soil is well-drained. With its rapid growth, the spider lily serves as an excellent ground cover option, spreading its beauty across the landscape. Alternatively, it can be strategically planted in borders or highlighted as a specimen plant, adding charm and elegance to any garden or landscape design.

In the world of flora, the Aztec Lily, Walking Iris, and Spider Lily stand out as captivating gems worth exploring. Each possessing its unique allure and charm, these three species display nature’s diversity and ingenuity. For more information about summer bulbs, contact your local UF/IFAS Extension Office.

Landscape Installation Planning and Preparation

Landscape Installation Planning and Preparation

It is mid-summer with temperatures outside in the 90’s plus, so you may wonder why article on landscape installation considerations during this time of year.  It simply is an excellent time for planning and preparing for fall and winter site prep and planting well before it arrives, reducing a time crunch when it is time to plant.

Think healthy plants for our Northwest Florida settings, proper preparation of the site before planting, and many other points to be successful with establishing a landscape that will be enjoyed by all.  This article will address the use of woody ornamental plants, but many things discussed can be applied to perennials and annuals as well. 

Before starting, make sure to do your homework not only on the plants and placement in the landscape, but any county, city, or homeowner association requirements to work within.  Many neighborhoods have review committees for these approvals.  This commitment by you when purchasing property and a home can be a part of the closing papers during the purchase.  If you are required to submit for an approval before work can begin you might want to consider consulting with a professional landscape company to assist in this process.  Always ask for references and sites you can visit before securing services. 

Site preparation can be a afterthought, with limited funding focused on this critical area, but properly addressing it leads to healthy, vigorous plant establishment and future growth.  Understanding the site from soil type and drainage, size of area, sunlight, water availability, plus needs of prospective plants goes a long way to being successful.  If there are plants already established on site that may be worth keeping, be sure to include them in the consideration.  Determining soil drainage, moisture retention that would be available to plants, soil pH and structure will also go a long way to determining the type of plants that work best for the site.  If, for example, your site does not drain well and holds higher levels of water in the root zone area (top 12″ of soil), consider plants that grow well in wet settings.  The next steps are determining soil pH and nutrient needs for general landscape plant growth performance.  Many plants thrive in slightly acidic soil (pH 6.0 to 7.0 range) while others grow best in moderately acidic settings (pH 5.0 to 6.0 range).  Contact your local UF IFAS Extension office in your county for additional information. 

The landscape site brings other considerations for plants to flourish, involving space and light.  Space should be considered both above and below ground.  With the above ground area, is there room for the limbs to expand in width and height?  If pruning is required to manage the size, considering another plant may be a viable option.  Next is the root growth and expansion opportunity for the plant.  If the root area is limited in space, other options may need to be considered to mitigate compacted soils or pavement areas.  Adding raised beds for better soil drainage and increased root growth room may be an option.  Be sure to know your soil type and use a similar soil with characteristic that match the existing soil.  If you do not, there can be incompatibility that leads to a hard pan layer between the soils reducing potential root zone establishment. 

The desire to develop and establish an enjoyable landscape for all to appreciate can be a challenge, but a positive one.  As a reminder, call and go visit with your local UF IFAS Extension office, there is great research information available for the asking.  Enjoy your gardening experience.

Philippine Lilies in the Panhandle

Philippine Lilies in the Panhandle

Since Ponce de Leon first set foot in Florida around Easter in 1513 and gave the state its name – he called it La Florida, which loosely translates to flowery in English – Florida has been known for its amazing native wildflower displays.  Florida’s primary native flower shows do indeed occur in the spring (the one observed by Ponce de Leon) and fall, but my favorite Florida “wild” flower is neither a native nor does it bloom in April or October.  Rather, the Philippine Lily (Lilium formosanum) does its thing each year in the heat of the summer, when not much else wildflower-wise is blooming.

Hailing from Taiwan and the Philippines but naturalized throughout the Panhandle, the Philippine Lily is easy to spot.  Often confused with Easter Lily (Lilium longiflorum), which blooms much earlier in the year, Philippine Lily blooms mid-July to August and sports classic lily-type flowers held high on study stems that may reach 7’ or higher.  Emerging from the drab green of the surrounding summer landscape, Philippine Lily’s very large (10” or more), very fragrant, trumpet-shaped, creamy-white flowers are showstoppers.  The propensity of the flowers to appear in elegant, “nodding” clusters of a dozen or more also adds to the effect.  Admired by gardeners and other passersby during the day, at night these wonderfully scented flowers become a whirring site for evening pollinators, particularly the enormous Hummingbird, or Sphinx Moth.

Philippine Lily in bloom in late July. Photo courtesy of Daniel Leonard.

In addition to being a beautiful surprise in natural areas, Philippine Lily is among the easiest and most versatile of landscape plants to grow.  The species prefers partial shade, but the thousands growing along roadsides in full sun speak to its adaptability.  It is also right at home in our often dry, sandy Panhandle soils, and no special soil amendments are needed for the species to thrive.  To get plants started, one may use either seeds or transplants from existing stands.  If using seeds, simply sow them in your desired garden location into loosened garden soil, cover lightly, and water – the same seed sowing method can be used in pots for transplanting or sharing with friends later.  Alternatively, you can dig or pull bulbs from natural areas where Philippine Lily already exists – assuming you have permission from the property owner.  These newly dug and planted Lilies will need babying with regular water for several weeks to reduce transplant shock and improve survival. 

Philippine Lily is probably best sited in the back of landscape beds to take advantage of the plant’s height and display its flowers over lower growing perennials.  Siting in the back also allows pre and post bloom Philippine Lily stalks to hide amongst other plants as they don’t add much aesthetically when not in flower.  Philippine Lily pairs very well with other low-maintenance summer-blooming perennials like Black-Eyed Susan (Rudbeckia hirta), Garden Phlox (Phlox paniculata), Milkweed (Asclepias spp.), and others.

While not a native wildflower, Philippine Lily certainly adds to North Florida’s reputation as La Florida!   They are among the easiest to grow, highest impact “wild” flowers Panhandle gardeners have at their disposal.  Enjoy them this summer in natural areas and consider adding a few to your landscape!  For more information on Philippine Lily or any other horticultural topic, contact us at the UF/IFAS Calhoun County Extension Office.  Happy gardening.

Poinsettias

Poinsettias

A Short History

The poinsettia (Euphorbia pulcherrima) is a plant synonymous with the holiday season. Growing in deciduous forests along the Pacific coasts of southern Mexico it becomes a woody shrub reaching 10-15 feet tall. In 1825 the ambassador to Mexico Joel Poinsett was taken by the red blooms and brought it home to the United States. He propagated and gifted the plant to friends and a few public gardens. Before long the nursery industry took notice and the plant was on its way to becoming the potted plants we see in stores. Today, an extensive breeding program has created a multitude of colors and leaf patterns available to consumers for the holiday season.

Poinsettias for sale
Poinsettias for sale IFAS Photo: Josh Criss

The Plant

Poinsettia is a member of Euphorbiaceae commonly referred to as the Spurge family. The primary feature of this family is a milky sap or latex produced in the stem tissue. Some may be allergic to the latex, but to most it is at worst a mild irritant. This irritation conjoins a reputation of toxicity which may give some pause toward purchasing one. While a very mild toxicity does exist, you would need to consume very large amounts of the leaves to experience negative effects. That said, it is always best to dissuade consumption by pets and children with this and any other house plants.  The flowers of this plant are somewhat unremarkable and appear in the middle of several red leaf structures. These leaves are actually bracts and are protective structures for the flower. As a tropical plant, frosts and freezes have a detrimental consequence for this plant, but in areas where there is little or no risk of cold it may be used in your landscape after the holidays. In these scenarios, it will grow much as in its native habitat into a shrub.   

Mature poinsettia as a shrub in the landscape
A mature poinsettia planted outside of a home. IFAS photo

Care

When kept inside, keep the temperature around 65F at night and 80F during the day. They need full sun and water only when the soil is dry. It is good practice to remove any water left in pot saucers as this plant performs poorly with wet feet. All-purpose fertilizers should used except while this plant is in bloom. When blooming the plant does not require fertilization. Placed outdoors in a protect area once freeze risk has passed. Keep in mind that the bracts are photosensitive. Around October, theses plants will need 14 hours of complete darkness daily to turn their customary red by Christmas. Keep them covered and completely blacked out as even porch lights will delay color change.      

Poinsettias are a beautiful plant and certainly worth your efforts this holiday season. With some knowledge and a little effort, you may extend their life in our environment through much of the year. For more information on poinsettias, see this Ask IFAS document, or contact your local extension agent for additional information on this and any topic regarding your gardens and more.