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Rhs week 31 2014 presentation

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use of annuals in design

use of annuals in design


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  • 1. RHS Week 30 Hardy and Half Hardy Annuals and Container plants in design
  • 2. Learning objectives 1. State the purpose and use of hardy annuals in garden design 2. State the purpose and use of half-hardy plants in garden design 3. State the purpose and use of patio or basket plants in garden design For each of the plant types listed above : 4. name Five, suitable for planting in a variety of garden situations. State details of their decorative merits, height and spread and site requirements; describe a situation where each could be used effectively
  • 3. Use of Hardy Annuals in Design  Cold/frost resistant – grow, mature, flower and die in one year. Usually sown where they are to flower – bedding annuals can be grown in pots for later planting out.  Provide good colour and interest but only for late spring and summer  Annual only beds therefore over by the frosts – lack year round interest  Can also be used in patches or drifts in mixed borders or sown in containers.  Enable changed colour schemes to be used each year.
  • 4. Hardy Annuals  Lobularia maritima  Iberis umbellata
  • 5. Hardy annuals  Helianthus annuus  Tropeaolum majus
  • 6. Hardy annuals  Clarkia elegans  Matthiola incana
  • 7. Hardy Annuals  Lathyrus odoratus  Calendula officinalis
  • 8. Hardy annuals  Papaver rhoeas ‘Shirley series’  Rudbeckia hirta
  • 9. Half hardy and tender annuals in design  Not cold tolerant so started under glass with heat.  Some are botanically perennials but grown as annuals due to lack of cold tolerance  Useful as they can be bedded out either in bedding displays or as drifts in mixed borders and come into flower relatively quickly after planting out.  Classic bedding schemes are replanted two or three times a year – high labour and planning  When used to provide variety among permanent planting they are less hard work.
  • 10. Half- hardy and tender annuals and bedding plants Impatiens walleriana Nicotiana x sanderae
  • 11. Half- hardy and tender annuals and bedding plants Salvia splendens Tagetes patula
  • 12. Half- hardy and tender annuals and bedding plants Begonia semperflorens Cleome spinosa
  • 13. Half- hardy and tender annuals and bedding plants Heliotropum arborescens Pelargonium x hortorum
  • 14. Half- hardy and tender annuals and bedding plants Petunia x hybrida Phlox drummondii
  • 15. Containers and baskets in design  Can be easily changed for seasonal interest.  Baskets give good vertical interest.  Can be used where other planting is not possible – window boxes, paved areas etc.  Containers can be used to grow tender plants that can then be protected over winter.  Not all container plants are annual or temporary. Large containers can be used for perennials that can be under planted with annuals for a changing display.  Good for adding winter interest close to the house – on a patio visible from a window etc.
  • 16. Summer plants for containers Lobelia erinus ‘Monsoon’ Fuchsia ‘Swingtime’ Photo: John Keogh (attribution, non-commercial)
  • 17. Summer containers Impatiens walleriana Begonia semperflorens
  • 18. Summer containers Pelargonium x hortorum Tagetes patula
  • 19. Summer containers Verbena x hybrida Note that ‘Aztec Silver’ is pink/white. Cuphea ignea
  • 20. Winter Containers Viola x wittrockiana Hedera helix ‘Spetchley’
  • 21. Winter Containers Skimmia japonica Heuchera
  • 22. Winter Containers Polypodium vulgare Cyclamen coum
  • 23. Winter containers Carex comans ‘Bronco’ Iris ‘Katharine Hodgkin’ Photo: Rogerio Liria
  • 24. Winter Containers Helichrysum italicum Brassica oloracea (Capita group) ‘Northern Lights’
  • 25. Learning outcomes 1. State the purpose and use of hardy annuals in garden design 2. State the purpose and use of half-hardy plants in garden design 3. State the purpose and use of patio or basket plants in garden design For each of the plant types listed above : 4. name Five, suitable for planting in a variety of garden situations. State details of their decorative merits, height and spread and site requirements; describe a situation where each could be used effectively

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