Growing Penstemon.


Latest Update 6th May 2017.


Golden Beard Penstemon.
  • Penstemons are small short lived herbaceous shrubs and grow well in my clay based organic soil. They are very hardy and my weekly 1 hour watering by drip irrigation in summer provides plenty of water during their growing season.
  • After they finish flowering in late autumn, I cut them back hard and after clearing old mulch and debris, apply 60mm of homemade compost covered with straw mulch.
  • Dead flowers are removed right down to the base of the stem to encourage new growth during the summer.
  • After a few years, when its vigour reduces, I propagate new plants by root division in late autumn.
  • I have had Golden beard Penstemon for many years and I love their subtle dark pink flowers.
Details
  • Binomial Name:                                        Penstemon Barbatus.
  • Family:                                                    Plantaginaceae.
  • Garden bed type:                                      Drip line irrigated.
  • Plant Spacings (centres):                          1000mm.
  • Climate:                                                   Warm Temperate.
  • Geography:                                              Southern Hemisphere. Growing 
Conditions:
  • Full sun.
  • Minimise soil disturbances to maintain a natural soil structure.
Feed the Soil.
  • In late autumn, remove old mulch, fallen leaves and other decaying organic material. Dispose of them in the compost heap.
  • Remove dead or diseased flower stems and reduce the height of the remaining foliage.
  • Apply a top dressing of home made compost to the surrounding soil at a rate of 60 litres /M2.
  • Cover with fresh straw mulch.
Growing Instructions
  • Propagate Penstemon by root division in late autumn.
  • Prepare the soil in the intended position and plant the new plant. Water it in well with dilute seaweed extract.
  • Apply a monthly foliar spray of aerated compost tea when the rest of the ornamental plants are sprayed.
Potential Pests
  • My Penstemons have been always been pest free in my garden
Protection
  • Regular foliar sprays of aerated compost tea should deter most airborne pests and diseases.
  • An annual application of home made compost and aerated compost extract on the soil helps control soil borne pests.

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