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May Maintenance Guidelines
After years of working in the industry and building a nursery business around Oklahoma's inclement weather, we are suggesting the following maintenance quidelines.

May 2017 Maintenance Guidelines

  • Plant your Ball & Burlap (B & B) trees.
  • Great time for new planting of shrubs and perennials.
  • Don't forget to use Marcum's Redbud Compost with root stimulator for best results.
  • Mulch with our Twice Ground Marcum's Cedar Mulch to aid your plants in moisture control as summer is quickly approaching.  Using our special blend mulch adds a finished look to your landscaping. 
  • Set out your annual bedding plants for summer color.
  • In mid-May, treat for pine needle diseases with copper fungicide.
  • Clean dead needles away from under trees.
  • Seed warm-season grasses (Bermuda and Zoysia)  in mid-May through the end of June. 
  • Fertilize cool-season lawns with Marcum's 18-6-12 fertilizer if you did NOT fertilize in March and April.
  • Fertilize warm-season lawns with B. R.'s lawn tonic (28-6-12) or Nitro Green (31-0-0) in May.
  • Nut sedge plants become visible during May. Post-emergent treatments (Sedgehammer) are best applied for the first time this month. Make certain warm-season grasses have completed green-up.
  • Soak new transplants and newly planted trees unless rainfall is abundant. See Marcum’s Nursery watering guidelines for details.

Insect Alert

  • Apply Hi-Yield 38 Plus or Hi-Yield Malathion for lace bugs on sycamore, pyracantha, and azaleas.  
Note: Thanks to Oklahoma Coop Extension Service for providing some of the suggested maintenance guidelines. Recommended products suggested by Marcum's may be purchased at both store locations. For questions regarding May maintenance guidelines, please call 288-2368 or 691-9100.