ROSES AS A LANDSCAPE DESIGN IDEA
I have done some research on roses in Phoenix landscapes and this is what I have come up with.
Roses in the ground for more than three years are very low maintenance, perfect for a landscape design idea. Plant in the fall, in October and November are good months to begin the process.
Roses in the desert for as landscape design idea grow well in the Phoenix area in general and miniature roses are even easier to grow than your average full size rose. They take the desert heat and sun fairly well and cold weather is not a problem as all types of roses can take much colder temperatures than occur in the lower desert. In fact, roses never go fully dormant here. Roses need regular water, especially in the summer.
Heat Tolerance and Sun Exposure
While roses prefer full sun to produce flowers, afternoon summer sun will make flowers short lived, so extreme microclimates like Western exposure and or reflected sun should be avoided when using roes as a landscape design idea.
Roses are very hardy in the Phoenix area adds to the attraction of using them as a landscape design idea. Miniature roses unlike most named roses, are grown on their own roots, meaning that they can freeze back and will return true to form in the spring.
Planting Roses as Your Landscape Design Idea
To maximize a roses chance of surviving its first summer, plant in October or November. The landscape design idea behind this is that at this time the hot days are over and the plant will have as much time as needed to grow roots before the next summer. Dig a hole at least twice the size of the root ball. At a minimum, make the hole two feet in diameter and two feet deep. It is also a good idea to finish with the hole an inch or two recessed so that a watering basin is created. Work in a 50/50 mix of compost to the soil. Be sure to mix the compost and soil as thoroughly as possible. In the bottom of the hole, add a layer of this compost mixed combined with bone meal or superphosphate.
Follow the directions on the bag to determine quantity. Phosphorus encourages root growth to help your landscape design idea along, but moves slowly through the soil so it is good to take advantage of the opportunity to put it down deep during planting.
Watering Frequency for Roses for your Landscape Design Idea
Miniature roses do well on a grass watering schedule.
Watering Method for Roses in a Landscape Design Idea
Basin or flood irrigation is the recommended landscape design because it helps keep the salt in our salty water from accumulating around the roots. Furthermore, deep watering will encourage the plant to develop deeper roots, making the plant tougher when the weather gets hot and dry.
Fertilizing and Growth of Roess
Fortunately, healthy miniature roses with beautiful flowers can be grown with very little care. Making them the perfect marriage in a landscape design a one inch layer of compost applied in the spring and fall can go a long ways in making a rose happy. Miniature roses have relatively shallow roots so this extra insulation can make a big difference.
Chemical fertilizers and organic fertilizers can be used as well. It is best to use a bloom producing variety which is generally low in Nitrogen and high in potassium and phosphorus. Keep in mind that Phoenix soils are high in salts already and chemical fertilizers contain salts. Therefore, it is very easy to burn plants with chemicals, so go very light on them to keep your landscape idea alive and looking well.
Pests can destroy a Landscape Design Idea
Aphids are the main pest of miniature roses. Fortunately, the aphid season is very short in the lower desert, lasting from the beginning of March to the middle of April. Aphids can usually be ignored on well established plants, because they aren’t around long enough to do significant damage. On newly planted roses, they can be either periodically sprayed off with the hose or killed using chemical means. Chemical sprays that include bifenthrin appear to work the best because they continue to kill for over two weeks. One spraying in the spring, when aphids appear, is usually all that is needed. Pesticides should be used minimally if at all.
Miniature roses do not appear to have troubles with black spot like their larger relatives.
So there you have it. With a little bit of care you can have lots of color. Sometimes I plant herbs or low growing ground covers to mask the base of the roses and blanket the roots.