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Ecological Section

Coons, Janice M. [1], Greenwood-DeLine, Lynze T. [1], Kerber, Angela J. [2], Claerbout, Ann E. [2].

Performance of Select Native Plants for Landscaping Use.

Native plants offer alternatives to exotics in landscaping, where they require less fertilizer, water, and pesticides. Yet for natives to be accepted, the nursery industry must be able to produce them and consumers must find them desirable. Objectives were to develop production techniques and to evaluate performance of Illinois natives. Blephilia ciliata, Monarda bradburiana, M. punctata, M. fistulosa L., Silene regia, Dalea purpurea, and Stylisma pickeringii were compared for propagation, establishment, floral initiation, and special needs in greenhouses. Horticultural performance of select species was evaluated in Illinois gardens in summer 2003. All species were propagated from seeds with improved germination from scarification for S. regia, D. purpurea, and S. pickeringii or from stratification for B. ciliata, M. bradburiana, and S. regia. Species propagated by cuttings included B. ciliata, Monarda species, and S. pickeringii. Plants developed quickly for all except D. purpurea and S. pickeringii. Fertilizer increased seedling growth, but usually not mature plant growth. Container size had no effect on seedling establishment except that height increased for D. purpurea in Cone-tainers®. Hormex (transplanting solution) increased weight of B. ciliata, but decreased height of M. bradburiana and D. purpurea. All species flowered within the first year with no photoperiod or vernalization requirements except S. pickeringii bloomed the second year, and M. fistulosa never bloomed. In greenhouses, insects and powdery mildew were problems for some species. S. regia, D. purpurea, and S. pickeringii were sensitive to overwatering. In gardens, S. regia and M. bradburiana flowered, and quality for S. regia, M. bradburiana, D. purpurea, and B. ciliata was rated as good or excellent with minimal fertilizer, watering or pests. Thus, some of these native plants offer potential alternatives for the nursery industry and gardeners of Illinois.

1 - Eastern Illinois University, Biological Sciences, 600 Lincoln Avenue, Charleston, Illinois, 61920, USA
2 - University of Illinois, Natural Resources and Environmental Sciences, 1025 Plant Sciences Laboratory, MC-634, 1201 South Dorner Drive, Urbana, Illinois, 61801

Blephilia ciliata,
Monarda bradburiana,
M. punctata
M. fistulosa L
Silene regia
Dalea purpurea
Stylisma pickeringii.

Presentation Type: Paper
Session: 17-14
Location: Wasatch (Cliff Lodge)
Date: Monday, August 2nd, 2004
Time: 4:45 PM
Abstract ID:884

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