Perennials

Course CodeBHT316
Fee CodeS2
Duration (approx)100 hours
QualificationStatement of Attainment

 

Become an expert at the classification, identification and culture of Perennial Garden Plants. 

Perennials are versatile, beautiful and important to the landscaping industry, as well as the nurseries that grow and supply them. 

Perennials come in all forms, from herbaceous plants that die down in the winter and re-emerge in spring (year after year), to plants that retain their soft-stemmed leafy growth year round. Although beautiful, many perennials are also tough and very much adapted to a variety of climates - ranging from very dry to wet.

Some have colourful foliage as well as beautiful flowers, others add architectural interest - but all add excitement and diversity to the landscape or garden as they burst into flower each year.

Discover what perennials are, which perennial plants are most popular today, their cultural requirements (ie. feeding, watering, soil requirements, pruning, pest control), and learn how to use them to create beautiful landscapes. A course equally valuable to landscapers, nurserymen, cut flower growers and garden enthusiasts.

Lesson Structure

There are 8 lessons in this course:

  1. Introduction
    • Review of the system of plant identification
    • Physiology
    • Information sources
  2. Culture
    • Planting
    • Staking
    • Mulching
    • Watering
    • Feeding
    • Pruning, etc.
  3. Propagation and Hybridization
  4. Review of Major Types of Perennials
  5. Pests & Disease
  6. Irrigation & Hydroponic Culture Techniques
  7. Landscaping with Perennials
  8. Further Uses.

Each lesson culminates in an assignment which is submitted to the school, marked by the school's tutors and returned to you with any relevant suggestions, comments, and if necessary, extra reading.

Aims

  • Describe the identification of Perennial Plants
  • Determine sources of further information for identifying and growing different varieties of perennials.
  • Discuss a variety of cultural techniques used to improve success in growing of different perennial plants
  • Determine the propagation of different perennial plants.
  • Discuss the horticulture of a range of commonly grown perennial genera.
  • Discuss the management of pests and diseases occurring on a range of perennial plants.
  • Manage irrigation and drainage to ensure optimum water levels are maintained for healthy growth in perennials.
  • Determine appropriate use of perennials in a range of horticultural situations.
  • Describe a variety of uses for perennials.

 

What is the Scope of this Course?

The range of Perennial Garden Plants is huge. 
This course will expand your plant knowledge and provide a foundation for a lifelong journey of exploration withg these remarkable plants.
Scope of the Perennial Course
There is a great deal of scope for you to explore the plants you have most interest in; under the guidence of your tutor.
Some of the plants that may be encountered in this course are listed below; though thwere are of course many others you may also encounter, beyond these.
 

Achillea

Dianella

Iberis

Salvia

Ajuga

Dianthus

Kniphofia

Santolina

Alchemilla

Dierama

Lavandula

Saxifraga

Alyssum saxatile

Erigeron

Liriope

Sedum

Anthemis

Erysimum

Parahebe

Sempervivum

Aubretia

Euphorbia

Pelargonium

Sisyrinchium

Bergenia

Festuca

Penstemon

Stachys

Campanula

Gazania

Phlomis

Strelitzia

Carex

Geum

Phlox subulata

Tanacetum

Cerastium

Heuchera

Phormium

Tulbaghia

Epimedium

Helleborus

Plectranthus

Yucca

 

Other Perennials and Suggested Uses

 

Garden-gate Plants:

Tall Bearded Iris

Flower colour range, season spring/summer, height 60-90cm

Day Lilies (Hemerocallis)

Flower colour range, season early/mid summer, height 75cm

Border Plants:

Aster  

Dwarf flowers in summer, tall flowers in autumn

Anthemis tinctoria

Yellow/cream, 30cm

Aquilegia

60cm, early summer, attractive foliage and flowers

Heleniums

Yellow/brown, late summer-autumn, 60-125cm

Rudbeckias

Yellow, 1.25m, late summer

Accent Plants:

Cynara carduncaulus

1m high, 2m wide, attractive foliage

Miscanthus sinensis

2m, decorative foliage (many cultivars)

Phormium

To 1.5m, strap-like attractive foliage (many cultivars

Romneya coulteri

2m, white/yellow flowers summer-autumn (sheltered position)

Yucca

Cream bells in summer-autumn, 2m, attractive rosette foliage

Foliage Plants:

Arum italicum

Attractive foliage, 45cm ( a weed in some countries)

Bergenia cordifolia

Round leathery, 25cm very drought tolerant

Eomecon chionanthum

Fig like leaf, ht.30cm

Dianella species

Flax-like small plant, 70cm (blue flowers and berries)

Diplarrhena morea

Iris-like foliage, 75cm

Heracleum mantegazzianum

Large, coarsely divided, 3 high

Iris

Especially the variegated leaf variety, reed-like foliage,

Lavatera olbia

Vine-shaped leaves, 2m

Melianthus species

Grey-green fingered foliage, up to 2m high

Orthrosanthus multiflorus

Iris-like foliage, 75cm

Paeonia species

Deeply divided foliage, ht up to 2m

Patersonia glauca

Iris-like foliage, 45cm

Perennials for under Trees:

Cyclamen sp.

Attractive foliage and flowers, bulbous

Euphorbia robbiae

Rosettes of dark rounded foliage

Helleborus sp.

Divided leaves, low habit, attractive flowers

Pachysandra terminalis

Low, evergreen, dense, 10cm high

 

 

What Can this Course Do For You?

Anyone can refer to a book or web site for information on a perennial plant - but seeing it isa not the same as understanding it, remembering it, and being able to apply it in "real life".

If you want to be a real life exp[ert with perennial plants; this is the course for you.

Whether you plant to work with perennials (as a nurseryman, landscaper or plant breeder), or are simply an enthusiastic amateur; this course can take your knowledge to the next level and provide a solid foundation for lifelong learning and understanding of perennial plants.

 

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