The Gardener's Almanac

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The Ornamental Garden in September

 

Overview ;

As the season begins to draw to a close for another year, now is the time to be thinking about next year.

 

Many plants will benefit from being divided and replanted while the soil is still relatively warm, plus there there is the clearing away and composting of spent plants.

 

 

 
 
 

At any time this month;

 

Note; Most perennials will benefit from being divided every three to four years.

Do this by lifting and dividing the clumps, and discarding the old central section, then simply re-plant the newer outer pieces, into freshly prepared soil.

 

 

 
 
 

Week No. 36 - 2nd to 8th

 

 

 

 

  • Move / Transplant Azaleas if required.

 

 

  • If required; Plant out new Buxus/Box hedging.

 

 

 

 
 
 

Week No. 37 - 9th to 15th

 

 

  • Naturalise some hardy spring bulbs into the lawn.

 

 

 
 
 

Week No. 38 - 16th to 22nd

 

  • Prior to planting out; prepare the planting area/s by forking in a little slow release fertiliser into the soil, e.g. Bonemeal.

 

 

  • Take this opportunity to fill gaps in the border where previous plants have died.

 

  • Pot up a few Ageratum to give some early spring flowers.

 

 

  • Prepare a spot for new Clematis plants.

 

 

 

 

  • Cut down Sidalcea to 300mm (12") above ground level soon after flowering, to encourage the production of
    lateral flowering shoots.

 

 
 
 

Week No. 39 - 23rd to 29th

 

 

 

  • Finish dividing and re-planting plants described in the list above.

 

 
 
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