Try Dwarf Lantana for a Summer and Fall Blooming Perennial

Try Dwarf Lantana for a Summer and Fall Blooming Perennial

 

Dwarf lantana cultivar 'Anne Marie' - Image UF IFAS Extension, Matthew Orwat

Dwarf lantana  – Image UF IFAS Extension, Matthew Orwat

With the heat of summer already here, we all know that our pansies, petunias and snapdragons are on their way out. This leaves us wondering what we could plant that will give us color throughout summer and fall to the first frost.

Many are weary of Lantana camara, the common garden lantana, because of its potential as an invasive species and large rampant size. Good news, there are several dwarf cultivars that have no invasive potential because they are sterile. Additionally, many other dwarf cultivars grow slow and produce few seed, so they have low invasive potential.

Dwarf lantana cultivar 'Improved Nugget'. Image credit UF/IFAS, Matthew Orwat

Dwarf lantana. Image credit UF/IFAS, Matthew Orwat

Northwest Florida is not in the natural range of the endangered South Florida native Lantana depressa, so the outcrossing danger does not exist in our area.

Dwarf lantanas are available in either mounding or trailing types. Mounding types rarely get over 1 foot tall and have an equal spread while trailing lantanas stay lower to the ground but can spread several feet. They are available in several colors including yellow, purple, white, multicolor and red. They provide reliable color in flushes from late spring until first frost

When mature, dwarf lantana are drought tolerant but need supplemental watering to get established. They also thrive in poor soils and need little fertilization.

Dwarf lantana usually acts as a perennial, but die to the roots during extremely cold winters.

Lantanas that are known to be relatively non-invasive include Patriot, Hallelujah, Sunburst, and Cowboy. Florida Exotic Pest Plant Council recognizes the cultivars ‘Gold Mound’, ‘New Gold’, ‘Alba’ and ‘Patriot’ as cultivars that are not known to produce viable seeds. Other newer dwarf varieties need to be evaluated on a case by case basis, but varieties the author has observed as no to low seed set in the landscape. Also if home gardeners are worried about seed production, spent blooms can be pinched off so no seed can form. This pinching off practice also speeds up re-bloom and is thus highly encouraged.

Dwarf lantana 'Anne Marie' - Matthew Orwat, UF/IFAS

Dwarf lantana – Matthew Orwat, UF/IFAS

 

Preventing Heat Stress: Plant and People Considerations

Preventing Heat Stress: Plant and People Considerations

Expect typical heat and humidity east of the Apalachicola River with hotter temperatures west.  http://www.accuweather.com/en/weather-video/video-summer-2014-forecast-highlights-drought-severe-weather-increase/3520160310001

Expect typical heat and humidity east of the Apalachicola River with hotter temperatures west.
http://www.accuweather.com/en/weather-video/video-summer-2014-forecast-highlights-drought-severe-weather-increase/3520160310001

As we begin to approach our North Florida hot summer months, Gary Wade with the University of Georgia College of Agriculture and Environmental Sciences Cooperative Extension reminds us that, “temperatures in the high 90s and several weeks without rain can lead to serious, sometimes fatal, conditions for landscape (and garden) plants“.  Most likely, we will also experience extreme temperatures in June and July. Under these conditions, heat stress is a great concern for both plants and people in the landscape or garden. Remaining hydrated is key to preventing heat stress.

For plants, mulching is an effective means to conserve moisture in the soil. It also cools the plant root zone, and helps to control weeds. Removing weeds that are growing around desirable plants will also help reduce soil moisture losses.

Consider watering your garden or landscape early in the morning. This method takes advantage of cooler morning temperatures, which can extend soil moisture conditions thus making soil moisture available during the hottest times of the day.  Early morning watering will also discourage disease problems on plants susceptible to fungal growth such as lawns, roses, and cucurbits.

The best time to work in the garden or landscape is during the morning hours. To beat the heat, stay hydrated by drinking plenty of water.  Heat stress disorders develop when the body cannot shed excess heat.  Heat stress, heat exhaustion, and heat stroke are illnesses that can overcome you when your body is unable to cool itself.  For more information and resources on how to “Beat the Heat”, visit the UF IFAS Solutions page.

Ref: Wade, G.  2013.  Heat, Drought Take Toll on Landscape Plants.  University of Georgia College of Agricultural and Environmental Sciences Cooperative Extension.

Summer Bulbs

Thinking of bulbs for the garden? Summer is not necessarily the time of year that gardeners think about beautiful blooms from bulbs and bulb-like plants, but there are many that bloom in the summer garden.

In general, many types of plants with an underground storage organ are classified as a bulb.  These  include plants with tubers, rhizomes, or corms.  True bulbs including Lycoris and Crinum lily are compressed stems with a growing point surrounded by thick, fleshy scales.  Corms such as Crocosmia are solid masses of stem tissue with a terminal bud and side nodes.  The rhizome is an underground stem that grows laterally, with representatives of this type being blackberry lily and ginger.

It is likely that your garden is full of bulb-like plants and you were just not aware of their underground beginnings.  If you want to consider a few more for the summer garden, here are some good choices.

Blackberry lily is a member of the Iris family that offers good summer bloom in our northern Florida gardens.  Plants form sprays of foliage about 2 feet in height with stalks of orange flowers with red spots.  Plant in full sun or partial shade and supply with well drained, amended soil.

A hairstreak butterfly visits the Blackberry lily flower.

A hairstreak butterfly visits the Blackberry lily flower.

Blackberry lily foliage_bbolles

Another bright summertime bloomer is Croscomia.  Commonly overlooked early in the year as foliage regrows from the cold, the bright orange flowers that emerge in summer make it a feature in garden beds.  Plants grow well in both full sun and partial shade but clumps can expand easily beyond the desirable planting area.  Thin out every few seasons to keep the clump manageable.

A tuberous perennial that will have stunning flowers closer to eye level is the Gloriosa or flame lily.   Plant stems will wind around a trellis or garden feature, hold on with tendrils, and support large upward-curved petals.  Flower colors are red, yellow, orange, or mixes of several colors.   Flame lily prefers sunny locations and lots of moisture in the growing season.  Winter soils should be drier to prevent tubers from rotting.

Flame lily growing with a spring blooming vine.

Flame lily growing with a spring blooming vine.

All of these options can enhance your garden and extend your bulb growing season beyond the spring. Happy Gardening!