September

  • This is the best time of year for planting trees & shrubs, container trees & shrubs, some perennials & fall annuals. For most perennials & ornamental grasses, wait to plant in spring.
  • Keep in mind when planting…great bed preparation leads to great plants!
  • Plant early spring blooming bulbs. Wait for first frost or colder day temperatures for planting late spring blooming bulbs.
  • Deadhead Chrysanthemum blooms as they fade, this will encourage additional blooms!
  • If day time temperatures are cooler, it’s okay to plant Pansies. Pansies are cool weather annuals & do not perform well in hot weather. So, if day temperatures are still warm, wait before planting.
  • Under-plant Pansies with Daffodils or Tulips for a brilliant color display in spring.
  • Replace bloomed out annuals in containers with Pansies & bulbs.
  • Continue to fertilize annuals, but cut back to every 14 days to once a month with liquid fertilizer.
  • Replenish or replace mulch around trees, shrubs & in bed areas to a depth of 3” to 4”. This helps the soil retain moisture during dry weather.
  • Continue to monitor plant material for insects & disease damage. Treat as needed, following label instructions.
  • Continue to water plant material, especially newly installed landscapes (if no significant rainfall).
  • Continue to edge bed & turf areas.
  • Continue mowing routine. Be sure to cut fescue at 3” or higher to prevent brown out.
  • Continue to spot spray lawn for weeds with appropriate herbicide. Follow label instructions.
  • Continue to deadhead annuals & perennials. Pull up any old, weak or dead annuals.
  • Continue to weed in bed areas either by spraying or by hand, as necessary. If hand-weeding, it is easier when the soil is damp. Try to get to weeds before they seed…if not your weed problems will multiply!
  • Rose care routine will wind down this month….continue to deadhead blooms & remove any fallen leaves on ground at base of Roses. Fertilize Roses for the last time to allow new growth to harden off before first frost.
  • Prune trees & shrubs to shape & to remove dead or damaged branches.
  • Cover fish ponds with bird netting to keep falling leaves from getting into the water.
  • Continue to monitor plant material for insects & disease damage. Treat as needed, following label instructions.
  • Start Fall Lawn Care: Overseeding, Fertilization, Liming, Aeration and/or Dethatching. You will need about 5# to 8# of grass seed per 1000 square feet of turf area, starter fertilizer & lime (only if required). Aerate first and then apply seed & amendments (order is not important). Keep grass seed damp, sprinkle every day if necessary.
  • After aerating & seeding your lawn, fertilize once a month through winter. Tip to remember: start in September, then Halloween, Thanksgiving & Christmas.
  • Don’t know if you need lime or not? Get a soil test kit….extension agencies & garden centers should have kits for you to prepare & send off for analysis.
  • Get houseplants & tropicals ready to bring indoors…check for insects and/or disease & treat (follow label directions), prune & trim any dead or weak foliage, deadhead blooms, & water thoroughly. Stop fertilizing during winter or dilute to half strength. Wait until spring to repot houseplants.
  • Add milky spore to lawns to kill Japanese beetle grubs over-wintering in the soil.
  • Fertilize Peonies with bone meal.
  • For those with fish ponds, cut back on feeding fish as days get colder. Discontinue feeding altogether during winter months.
  • Remember our feathered friends….put out plenty of birdseed & plenty of fresh water.