Tree Mallow flowers
(Photo courtesy of NetPS Plant Finder)
Height: 6 feet
Spread: 6 feet
Hardiness Zone: 5b
Other Names: Rose Mallow
Large, lavender-purple saucer-shaped flowers summer to fall; does not tolerate cold, drying winds; fast growing and easy to maintain; cut back to the ground in spring
Tree Mallow features showy lavender flowers with purple stripes along the branches from mid summer to early fall. The flowers are excellent for cutting. It has grayish green foliage throughout the season. The fuzzy lobed leaves do not develop any appreciable fall color. The fruit is not ornamentally significant.
Tree Mallow is an open multi-stemmed deciduous shrub with an upright spreading habit of growth. Its relatively coarse texture can be used to stand it apart from other landscape plants with finer foliage.
This is a relatively low maintenance shrub, and is best cleaned up in early spring before it resumes active growth for the season. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;
Tree Mallow is recommended for the following landscape applications;
- Mass Planting
- General Garden Use
- Container Planting
Planting & Growing
Tree Mallow will grow to be about 6 feet tall at maturity, with a spread of 6 feet. It tends to be a little leggy, with a typical clearance of 1 foot from the ground, and is suitable for planting under power lines. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 20 years.
This shrub should only be grown in full sunlight. It prefers dry to average moisture levels with very well-drained soil, and will often die in standing water. It is considered to be drought-tolerant, and thus makes an ideal choice for xeriscaping or the moisture-conserving landscape. It is not particular as to soil type or pH, and is able to handle environmental salt. It is somewhat tolerant of urban pollution. This species is not originally from North America.
Tree Mallow makes a fine choice for the outdoor landscape, but it is also well-suited for use in outdoor pots and containers. With its upright habit of growth, it is best suited for use as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. Note that when grown in a container, it may not perform exactly as indicated on the tag - this is to be expected. Also note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.