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Gardening With Herbaceous Plants My thanks to Jim Harbage at South Dakota State for his presentation-January 2001 Herbaceous Gardens Steps in developing a garden Site analysis and modification Site plan Establishment Maintenance Overwintering Gardening with Herbaceous Plants
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Gardening WithHerbaceous Plants My thanks to Jim Harbage at South Dakota State for his presentation-January 2001
Herbaceous Gardens • Steps in developing a garden • Site analysis and modification • Site plan • Establishment • Maintenance • Overwintering
Gardening with Herbaceous Plants • Site analysis: • Light: • Hours of full sunlight • Soil: • Texture • pH • Fertility • Moisture: • Natural or applied • Temperature: • Heat reflection or exposure
Gardening with Herbaceous Plants • Light: • More than six hours of full sun = Full sun • Three to six hours of full sun = Partial shade • Zero to three hours of full sun = Shade
Gardening with Herbaceous Plants • Soil: • Texture - drainage • pH - acid or alkaline • Fertility - organic material
Gardening with Herbaceous Plants • Moisture: • Natural precipitation • Irrigation • Drainage • Note: • Many perennials planted in heavy wet soil (clay) will fail to survive.
Gardening with Herbaceous Plants • Site modification: • Soil amendments • Addition of pathways, walls, ponds, etc. • Changing slope or grade
Gardening with Herbaceous Plants • Site Plan: • Design • Choose materials
Gardening with Herbaceous Plants • Design: • Proportion • Balance • Pattern • Focus • Flow
Gardening with Herbaceous Plants • Selecting plants-Plant names: • Common names: • Descriptive (sometimes) • Confusing (usually) • Latin/Scientific names: • Specific • Descriptive • Oh no! Not the dreaded latin name.
Gardening with Herbaceous Plants • Choose materials for: • Match to site conditions and hardiness • Flower - size, shape, color • Bloom period - duration and time • Plant size - height and spread • Foliage - texture and color • Ease of maintenance • Cost
This bed is designed to provide continuous bloom through the growing season. Gardening with Herbaceous Plants
A. Buddleia-Butterfly bush (2) B. Coreopsis (12) C. Scabiosa (10+10) D. Verbena (3) E. Lantana (2 in each pot) F. Columbine (5+5) G. Daylily (8+8) H. Hardy Hibiscus (3) I. Liatris (8) J. Lobelia (9) K. Honeysuckle (2) L. Perennial Salvia (3+3) The Garden Plan
Gardening with Herbaceous Plants • Once you have a site plan you are ready to go get your plants and start planting
Gardening with Herbaceous Plants • Obtaining plants: • Propagate your own • Trade with friends • Mail order • Bare root versus greenhouse grown • Local garden center
Gardening with Herbaceous Plants • Planting/Transplanting • In the Spring - most plants • Plant actively growing plants after the last frost • Plant dormant plants - 3 to 4 weeks earlier • In the Fall - Iris, Peony, Poppy… • Plant at least six weeks before ground freezes • Iris and poppy - transplant late July early August
Gardening with Herbaceous Plants • Planting: • Group plants • Plant at same depth as container • Plant crown just below soil line • Peony - rhizomes not more than two inches below surface • Water in • Fertilize: easy does it! (balanced fertilizer or 5-10-5 five pounds per 100 square feet)
Gardening with Herbaceous Plants • Care and Maintenance: • Watering • Pest control • Weed control • Pinching and deadheading
Gardening with Herbaceous Plants • Watering: • In general - 1 inch to 1.5 inches per week (more when flowering or in sandy soil) • Water deeply and infrequently • Apply in the morning • Avoid wetting the foliage • Small newly planted materials need frequent watering since roots are near the surface
Gardening with Herbaceous Plants • Pest control: • Prevention - healthy, stress free plants are more resistant • Good drainage • Space plants for air flow • Rarely use chemicals • May need to remove some plants • Wash off many insects with water
Gardening with Herbaceous Plants • Weed Control: • Start before planting - Fall is best • Non-specific, systemic herbicide (e.g. Roundup) • Can use after planting with care • Early Spring before desired plants break dormancy (emerge from the soil) • Cultivation after planting • After plants can be seen • Shallow to avoid root damage • Mulching
Gardening with Herbaceous Plants • Pinching and Deadheading • Maintain bushy plants • Avoid reseeding • Increase flowers • Increase bloom season
Gardening with Herbaceous Plants • Preparation for Winter • Leave dead stems/foliage • Mulch - two weeks after first frost • Pine straw • Other materials • Remove before active growth in the Spring
Gardening with Herbaceous Plants • Winter Hardiness: • Consider hardiness zone ratings • Stress reduces hardiness: • Too much/too little water • Too little light • Competition • Low fertility • Late nitrogen application (a real no-no)
Gardening with Herbaceous Plants • In Summary: • Select good plants • Plant correctly • Don’t over fertilize • Don’t over water • Good pest control