Video: Care of Flax Lily After Winter Damage

Video: Care of Flax Lily After Winter Damage

Flax lily is a popular perennial that adds interest to garden borders or when planted in mass. Plants can be affected by cold temperatures so a little maintenance as temperatures warm is often necessary. UF IFAS Escambia County Extension shares late winter care of flax lily In the Garden.

Go Bananas in Your Landscape!

Go Bananas in Your Landscape!

Bananas are a great choice for your landscape, whether as an edible fruit producer or simply as an ornamental, giving your space a tropical vibe.

Bananas are native to southeast Asia, however, grow well across Florida. Complementary plants that can be paired with bananas in the landscape are bird of paradise (banana relative), canna lily, cone ginger, philodendron, coontie, and palmetto palm, just to name some.

Bananas are very easy to manage during the warmer months. Bananas are water loving, and that’s putting it lightly. Planting in vicinity of an eave on your home is a good measure for site suitability. Roof rainwater will drastically increase the growth of the banana tree and decrease the need for supplemental irrigation. Banana trees will need full sun and high organic moist soils create the best environment. For nutrition, a seasonal one-pound application of 6-2-12 fertilizer is a good practice to sustain older trees. Young trees should be fertilized every two months for the first year at a rate of a half-pound.

Musa basjoo

Musa basjoo is one of the most cold hardy banana varieties. Photo Credit: University of Florida/IFAS Extension

If there is a con to banana trees, it’s their cold hardiness. Some varieties fair well and others some not so much. ‘Dwarf Cavendish’ (Musa acuminate) is a popular variety that is found in many garden centers in the state. It produces fruit very well, but it is not very cold hardy. ‘Pink Velvet’ (Musa velutina) produces fruit with a bright pink peel, but isn’t very cold hardy either. A couple of cold hardy ornamental varieties are the ‘Japanese Fiber’ (Musa basjoo) and ‘Black Thai’ (Musa balbisiana), which is by far the most cold hardy, with the ability to easily combat below freezing temperatures.

freeze damage on a banana tree

Freeze damage on a banana tree. Photo Credit: Ray Bodrey, University of Florida Extension – Gulf County

Regardless of cold hardiness, in many cases, banana trees will turn brown after freezing temperatures occur or even if the temperatures reach just above the freezing mark, but will bounce back in the spring. Until then, it’s important not to prune away the brown leaves or trunk skin. These leaves act as an insulator and help defend against freezing temperatures. Usually, the last freezing temperatures that may occur in the Panhandle are around the first of April. So, to be safe, pruning can begin by mid to late April. When pruning, be sure to be equipped with a sharp knife, gloves and work clothes. Banana trunk skin and leaves can be quite fibrous and the liquid from the tree can stain clothing and hands.

So, what’s the best variety of fruiting bananas? Most ornamental bananas do not produce tasty fruit. If you are looking for a production banana, ‘Lady Finger’, ‘Apple’, and ‘Ice Cream’ are popular varieties, but are better suited for the central and southern parts of the state.

For more information, contact your local county extension office.

Supporting information for this article can be found on the UF/IFAS Gardening Solutions website.

Also, for more information see the UF/IFAS EDIS publication, “Banana Growing in the Florida Home Landscape”, by Jonathan H. Crane and Carlos F. Balerdi.

UF/IFAS Extension is an Equal Opportunity Institution.

Video: Cold Weather Damage Plant Care

Video: Cold Weather Damage Plant Care

The North Florida garden has experienced some cold weather damage and even though you want to start pruning back your perennials, now is not the time. Many damaged plant stems protect perennials that return from the roots. Learn about care of cold damaged plants with UF IFAS Extension Escambia County In the Garden. #colddamage #coldprotections

Unexplained Plant Problems?  Might be an Abiotic Issue!

Unexplained Plant Problems? Might be an Abiotic Issue!

Spring is a wonderful time of year.  After months of dreariness and bare branches, bright, succulent green leaves and flowers of every kind and color have emerged.  So too, have emerged gardeners and outdoor enthusiasts ready to tackle all their home and landscape improvement projects planned over the winter.  However, this is also the time, when folks first start paying attention to their plants again, that strange, seemingly inexpiable plant problems crop up!

All plant problems can be divided into two categories: biotic problems, or issues caused by a living organism (think insects, fungus, and bacteria), and abiotic problems, issues that arise from things other than biotic pests.  It’s the first category that people generally turn to when something goes wrong in their landscape or garden.  It’s convenient to blame problems on pests and it’s very satisfying to go to the local home improvement store, buy a bottle of something and spray the problem into submission. But, in many of my consultations with clientele each spring, I find myself having to step back, consider holistically the circumstances causing the issue to arise, scout for pests and diseases, and if I find no evidence of either, encouraging the person to consider the possibility the problem is abiotic and to adopt patience and allow the problem to correct itself.  Of course, this is never what anyone wants to hear.  We always want a solvable problem with a simple cause and solution.  But life isn’t always that easy and sometimes we must accept that we (nor a pest/disease) did anything wrong to cause the issue and, in some cases, that we ourselves actually caused the problem to happen in the first place!  To illustrate, let’s consider two case studies from site visits I’ve had this spring.

Cold damage on Boxwood hedge

Three weeks ago, I got a call from a very concerned client.  She had gotten her March issue of a popular outdoor magazine in the mail, in which was a feature on an emerging pathogen, Boxwood Blight, a nasty fungus decimating Boxwood populations in states north of us.  She had also noticed the Boxwoods in front of her house had recently developed browning of their new spring shoots across most the hedgerow. Having read the article and matching the symptoms she’d noticed to the ones described in the magazine article, she was convinced her shrub was infected with blight and wanted to know if there was a cure.  Agreeing that the symptoms sounded similar and wanting to rule out an infection of an extremely serious pathogen, I decided to go take a look.  Upon inspection, it was obvious that Boxwood Blight wasn’t to blame.  Damage from disease generally isn’t quite as uniform as what I saw.  The new growth on top of the hedge was indeed brown but only where the eaves of the house and a nearby tree didn’t provide overhead cover and, to boot, the sides of the hedge were a very normal bright green.  Having gone through a recent cold snap that brought several mornings of heavy frost and knowing that the weeks before that the weather had been unseasonably warm, causing many plants to begin growing prematurely, all signs pointed toward an abiotic problem, cold/frost damage that would clear up as soon as the plant put on another flush of growth.  The client was delighted to hear she didn’t have a hedge killing problem that would require either adopting a monthly fungicide regime or replacing the hedge with a different species.

Damage to ‘Sunshine’ Ligustrum from pressure washing siding with bleach.

The very next week, another client asked if I would come by her house and take a look at a hedge of ‘Sunshine’ Ligustrum that lines her driveway, whose leaves had “bleached” out, turning from their normal chartreuse to a bronzy white color.  This time, having seen similar issues with this particular plant that almost always involved an infestation of Spider or Broad Mites, I figured this was a cut and dry case that would end with a call to her pest control company to come spray the offending bugs.  However, though the leaf damage looked similar, I was not able to locate any existing pests or find evidence any had been around recently, rather it appeared the leaves had been exposed to something that “bleached” and burned them.  Puzzled, I began asking questions.  What kind of maintenance occurs on the plants?  Have you fertilized or applied any chemicals recently?  Nothing.  Then, near the end of our conversation, the client mentioned that her neighbor had pressure washed their house on a windy day and that she was irritated because some of the soap solution had gotten on her car.  Bingo.  Leaf burn from pressure washing solution chemicals.  This time I was guilty of assuming the worst from a pest when the problem quite literally blew in on the wind from next door.  Again, the client was relieved to know the plant would recover as soon as a new flush of growth emerged and hid the burned older leaves!

This spring, I’d encourage you to learn from the above situations and the next time you notice an issue on plants in your yard, before you reach for the pesticides, take a step back and think about what the damage looks like, thoroughly inspect the plants for possible insects or disease, and if you don’t find any, consider the possibility that the problem was abiotic in nature!  And remember, if you need any assistance with identification of a landscape problem and want research-based recommendations on how to manage the problem, contact your local UF/IFAS Extension office.

Is it Winter or is it Spring?

Is it Winter or is it Spring?

Ice on satsuma fruit in January 2014 in Crestview, Florida

Ice on Satsuma fruit from January 2014 ice storm in Crestview, FL. Photo credit: Larry Williams

Northwest Florida winters can be a rollercoaster ride of temperatures. One week it dips to freezing for a short time and the next week it rises to spring-like temperatures. We need to hold on for this ride of up and down temperatures but not over react too soon.

Following the sudden ride down to the lower temperatures, we may think winter is over. But we don’t see the next drop in temperatures that’s coming, as we are experiencing the ride upwards in temperatures.

On average, it’s not until we reach mid-March that we expect our last killing frost. A killing frost is heavy enough to kill tender plant growth. And, we can have light frosts well into the latter part of March and into early April. This is particularly true in the more northern portions of our Panhandle Counties.

The main point is to not get spring fever too early and encourage new plant growth by pruning or fertilizing too soon.

When landscape plants freeze, the first impulse may be to get out the pruning shears and cut away dead and dying leaves and branches. But this isn’t a good idea. Pruning can force new tender growth that is more likely to be injured by the next freeze. And, you can’t tell how much damage has been done until plants start new growth in spring. If you prune immediately after a freeze, you may cut away live wood that doesn’t have to be lost. Also, leaves and branches, which have been killed, can help protect the rest of a plant

Cold injury to lawn

Cold injury to lawn that happened March 31 in Crestview, FL. Photo credit: Larry Williams

against further cold injury.

Some people want to “jump start” their lawns before our weather will allow our grasses to grow. Waiting allows for more efficient use of the lawn fertilizer. You will not injury your lawn by

waiting but you can certainly injure your lawn by fertilizing too early.

So, have patience, allow your lawn to green up on its own and then fertilize, even if it’s not until April or May.

Finally, be a little philosophical. If you do lose one or two of your tender ornamentals, so what? Worse things could happen. And now you have a chance to add something new, perhaps some species native to our area that are not as subject to cold damage.

Even with this winter/spring rollercoaster ride, with thousands of plants to choose from and a generally mild climate, who can complain?

 

When is the Correct Time to Harvest Satsumas?

When is the Correct Time to Harvest Satsumas?

Fall 2016 Satsumas. Image Credit: Matthew Orwat

    Fall 2016 Satsumas. Image Credit: Matthew Orwat

One question that repeatedly pops up in my Extension work is “When do I harvest fruit or vegetable X ?”  This fall, the question of “when should I harvest my citrus?” has been a choice topic! The most common citrus in the Florida panhandle is the satsuma, Citrus unshiu, so it makes sense to limit this article to that species.

Harvesting satsumas can be a confusing activity for new citrus enthusiasts. Fall seasons in the panhandle tend to be extremely variable, from cold and wet to warm and dry or any combination thereof. To complicate matters, citrus is often grown in a protected microclimate in the garden. Thus, another variable is added to the decision tree.

Some harvest considerations to take note of:

  • Sometimes the fruit is ready to harvest even when some green remains on the fruit
  • Not all fruit on a given tree will be ready at the same time
  • It’s a good idea to harvest a few fruit per tree and taste test….this will be a good indicator of the readiness of the other fruit on the tree
  • A general trend to consider is that the longer the fruit remains on the tree, the sweeter it will become
Image Credit Matthew Orwat

Image Credit Matthew Orwat

When satsuma ripen, they become slightly soft. That’s a good indicator that they are ready to harvest. This softness makes them extremely easy to peel but poses a challenge when harvesting. If they are simply pulled off of the tree, some peel will be left on the tree and the fruit will be compromised. Such a fruit would have to be consumed quickly. To solve this problem satsuma are clipped off the tree, leaving a tiny bit of stem attached to the fruit. This allows the fruit to be stored and transported.

When a hard freeze is approaching (5 hours below 28ºF), it is important to harvest the fruit before this event whether or not they are ripe. Hard freezes will ruin the texture of the fruit and cause them to begin the rotting process.

Since a hard freeze is forecast for Friday December 9th 2016 for part of the Florida Panhandle, consult your local weather forecast and make your decisions accordingly.  For an in-depth discussion on citrus fruit harvesting and cold tolerances, please consult this publication from Texas A& M University. Additional articles are available on cold protection and frost readiness here.