by Mark Tancig | Apr 24, 2017
Source: UF/IFAS.
Impatiens are a very popular annual, bedding plant that provide a nice burst of color in the landscape. The traditional Impatiens (Impatiens walleriana), or touch-me-not, is the one that most gardeners know as needing part shade, but there are also the New Guinea Impatiens (Impatiens hawkeri) that are able to tolerate more sun. In addition to being able to withstand more sunlight, the New Guinea Impatiens also have larger flowers and leaves. Another highlight of the New Guinea impatiens is their increased resistance to downy mildew, a major concern for growers of touch-me-nots, especially in south Florida.
While native to the Old World, Impatiens are not known to invade Florida natural areas but may reproduce by seed. Touch-me-nots are known to spread easily be seed. An interesting fact about Impatiens is their bursting seed pods that can send seeds several feet from the parent plant. This characteristic is what led to the scientific name Impatiens – for impatient – and one of the common names – touch-me-not.
May is a good time to plant Impatiens in north Florida. They prefer slightly acidic soil and should be planted at a 12-18 inch spacing. Impatiens work well as a border planting or in mass plantings. While New Guinea Impatiens tolerate more sun, they still would prefer some afternoon shade. Those growing in full sun will need extra care to ensure they remain well watered. An all-purpose plant food can be applied at monthly intervals for best performance.
Some common varieties of touch-me-nots include ‘Accent’, ‘Blitz’, ‘Carousel’, ‘Dazzler’, ‘Impact’, ‘Impulse’, and ‘Super Elfins’. Common New Guinea Impatiens varieties include ‘Celebration Candy Pink’, ‘Celebration Light Lavender’, ‘Nebulus’, ‘Equinox’, ‘Sunglow’, and ‘Tango’. The newer ‘Sunpatiens’ variety is quite popular and comes in different forms – compact, spreading, and vigorous.
Source: UF/IFAS.
If you have any questions regarding Impatiens, please contact your local UF/IFAS Extension Office or visit our EDIS website at www.edis.ifas.ufl.edu.
by Daniel J. Leonard | Apr 24, 2017
Almost every landscape has a problem area where the sun just doesn’t shine and many plants won’t make it, maybe it’s the north side of your house, under a small tree, or tucked away in an oddly-shaped alcove. We all know the same old boring green choices that work well here (Holly Fern, Cast Iron Plant, etc.) but maybe you want something a little bit different, something that will provide a pop of color and interesting texture! Look no further than a recent introduction, a whole-plant mutation discovered from the little-used Grape Holly (Mahonia spp.), aptly named ‘Soft Caress’.
‘Soft Caress’ Mahonia is a beautiful little evergreen shrub from the Southern Living Plant Collection (one of the best of the collection in my opinion) and really is a game changer for full-shade areas. Some of you may remember the traditional Mahonia, also known as Grape Holly, from your grandmother’s lawn. Those plants were coarse, spiny, produced messy purplish berries and often appeared generally unkempt. ‘Soft Caress’ is a major departure from its parent. Possessing finely-cut, deep green, bamboo-like foliage, this plant’s texture really contrasts well with many traditional shady species. As a bonus, ‘Soft Caress’ sends up brilliant yellow-gold flower spikes in the dead of winter, certainly a welcome respite from the other barren plants in the landscape; although in this unusually warm year, the plants are just now blooming in the Panhandle.
Photo courtesy: Daniel J. Leonard
‘Soft Caress’ is advertised to grow three feet in height and width, a more manageable size than the larger traditional Mahonia species, but I’m not sure I’d take that as gospel, the three-year old plants (hardly mature specimens) in my parent’s landscape are already that size and show no signs of slowing down. However, I’ve found you can easily manage their size with a once a year prune to slow down some of the more rapidly-growing canes. Be sure to time the prune as soon as possible after flowering is finished as ‘Soft Caress’ blooms only once a year and produces its flowers on the previous season’s wood, just like Indica Azaleas and old-fashioned Hydrangeas.
The uses in the landscape for ‘Soft Caress’ Mahonia are nearly endless. It pairs well with almost anything in a shady mixed shrub border. It works nicely as a foundation plant against a porch or under windows on the north or east side of a house where it will be protected from hot afternoon sun; I have employed a grouping of the plants in this way in my own lawn with success. It even thrives in containers! If you want to show off some serious horticultural design skills, mix ‘Soft Caress’ in a large container on the porch with some like-minded perennials for a low-maintenance, high-impact display that you don’t have to replant each season. All this shrub requires is partial to full shade, moist well-drained soil, and an occasional haircut to keep it looking tidy! If you’ve been struggling to find a plant that’s a little more unusual than the standard garden center fare and actually looks good in shady spots, you could do a lot worse than ‘Soft Caress’ Mahonia. 
As always, happy gardening and contact your local UF/IFAS County Extension office for more information about this plant and other gardening questions!
by Matt Lollar | Apr 13, 2017
Most of you plant a spring vegetable garden with a number of different vegetable types. However, you may not realize that you are improving the health of your soil and your crops by planting a diverse garden. Intercropping is a gardening practice of growing different crops in the same field. When planting a mixture of crops in the same field year after year, it is important to rotate the location of each type of vegetable. This is a practice known as crop rotation. Intercropping and crop rotation will help reduce insect pest populations, increase beneficial insect populations, and reduce weed populations.
Crop Diversity
Growing plants in your garden that pest insects don’t like to eat makes the pests work harder to find what they do like to eat. Studies have found reduced whitefly numbers on squash plantings mixed with a crop of buckwheat when compared to squash planted alone. Another crop mixture that may be unintentional, but may work in your favor is a row of crapemyrtles along the edge of your garden. Crapemyrtles will attract the crapemyrtle aphid which will attract predatory insects. When the predatory insects run out of crapemyrtle aphids to eat, they will move to your garden and begin to hunt pest insects on your vegetable crop.
Squash with living mulch of buckwheat. Photo Credit: Oscar Liburd, UF/IFAS Extension
Trap Cropping
A trap crop is a plant that attracts a pest insect away from your food crops. Trap crops work best when planted at the edge of your garden, along a fence row, or in movable containers. A bare space, let’s say 5 feet or so, should be kept between your trap crop and your garden. This will help keep the pests from moving on to your vegetables. When you find a good population of pests on your trap crop then it is time to spray them with insecticide or cut the crop down and remove the debris to a location far from your garden. If your trap crops are planted in containers, then it makes them that much easier to remove from near the garden area.
Cover Crops and Green Manure
Soil organic matter can be increased by the use of green manure and cover crops. Cover crops are generally planted during the off-season, but they can be planted in between vegetable rows and tilled in at a designated time as a green manure. Both cover crops and green manure improve the production of your garden by:
- Suppressing weeds by competing for water, light, and nutrients;
- Holding the soil in place and preventing erosion;
- Scavenging for nutrients that can be utilized in future crops;
- Reducing nematode populations;
- Providing a habitat for beneficial insects.
A mixed plot of cover crops and trap crops. Photo Credit: UF/IFAS Extension
A number of different crops can serve as cover crops or green manure crops. Most are legumes (bean family) or grasses. A few that you might like to give a try are:
- Cowpeas
- Sunn hemp
- Sorghum-sudangrass
- Winter rye
More detailed information on cover crops and green manure can be found at this link: http://edis.ifas.ufl.edu/aa217.
by Carrie Stevenson | Apr 7, 2017
This sandbox area at Bok Tower Gardens is bordered by a stone “snake” and covered for shade, making it a real draw for small children and their parents. Photo credit: Carrie Stevenson, UF IFAS Extension
I recently had the pleasure of visiting Bok Tower Gardens in Lake Wales, Florida and experienced one of their newest additions, a children’s garden. As much a playground as a place for growing plants, it was full of whimsical energy and invitations to explore. The entire area encouraged children to reach beyond their comfort zones and engage with nature, including an outdoor art space, a climbing area made of lean-to logs, and a covered sand “box” shaped like a snake.
In recent years, sociologists, educators, and health experts have bemoaned the loss of free outdoor play in the lives of children. Multiple factors, including the rise in electronic entertainment, more organized, practice-heavy youth sports, fears of crime/abduction or just lack of safe access to ride bikes or walk, have contributed to a drop in the frequency and length of time that kids spend outdoors playing on their own. Many readers can probably relate to my childhood. We would take off on bikes in the mornings during summer and not come back until we got hungry. We didn’t have cell phones or GPS, and we knew all of our neighbors so we had a place to go if we had a rare emergency. The results of fewer child-led outdoor explorations include increases in childhood obesity, fear of the outdoors, difficulty with balance, agility, and managing excess energy.
When children help plant a garden, they will be more interested in taking care of it–and tasting the fruits (or vegetables) of their labor! Photo credit: Carrie Stevenson, UF IFAS Extension
One way to encourage kids to get outside and explore is to plant something in your yard, school, or nearby park that can serve double-duty as a window to explore. Landscaping with young people in mind should include a variety of plants with interesting heights and textures, fruit-bearing shrubs or trees to engage the sense of taste, and lots of color. Logs to sit and climb on are perfect for developing balance and learning to take calculated risks. In addition, it is important to engage kids in the design and planting of the garden or landscape–if they have a hand in developing the area, they’ll be more invested in its success. In fact, research has consistently shown that children who help care for school gardens are more willing to try the food they’ve helped to grow. Beyond expanding a healthy palate, participation in school gardens can increase “soft” skills, such as the ability to work effectively in a team, better communication, and an increased appreciation for nature. Many kids also do better in science and gain a deeper understanding of proper nutrition after working with gardens.
If you are not a gardener or landscaper but interested in taking children outdoors where they can learn and become more comfortable, the US Forest Service has taken the research related to “nature-deficit disorder” so seriously that multiple “Children’s Forests” have been developed. While there are still very few in the southeastern US, there are dozens around the country. The stated goals for a Children’s Forest are: 1) Connect kids, families, and adults to healthy outdoor activities across all landscapes. 2) Create new education and career opportunities. 3) Foster an understanding of how our changing environment affects the world and how people can work together to embrace these changes. 4) Provide professional development opportunities for educators, with emphasis on conservation and the natural world. Local state and national parks often provide excellent programs for families as well, such as the National Park System’s Junior Ranger Program.
The landscaping at this coffee shop uses color, log seating/climbing, and a variety of interesting plants to attract children to engage with the outdoors.
A program in Gainesville called “Kids in the Woods” has recognized the lack of youth engagement in the outdoors and created field trips and curriculum for students designed to help make sure they are comfortable in the great outdoors. No matter how you engage the youth in your life with nature, it is important that they get outside, get dirty, and go beyond their comfort zone. Their health, academic success, and even motor skills needed for sports and daily life will reap the benefits!
by Matt Lollar | Apr 7, 2017
The Jackson County Master Gardeners are hosting “Permaculture: An Introduction” on Saturday, April 29. Join us from 9AM to 2PM on Saturday, April 29 at the Jackson County Extension Office (2741 Penn Ave., Ste.#3, Marianna, FL) to learn the basics of permaculture. What is permaculture you might ask? Basically, it is the utilization of edible plants in your landscape to create a food forest. The workshop is $20 and includes lunch. To register or for more details please contact Matt Lollar at mlollar@ufl.edu, (850)482-9620, or come by the Jackson County Extension Office.
