sunflower photo
fall flowers

OHS Events


For Upcoming Events see the Calendar tab at the top of the page.



Greetings OHS Members, gardening friends, and horticulture enthusiasts.  Summer has arrived and now that we are in the month of June, we would normally be looking at our last OHS monthly meeting for the season.  I am sad to report that, similar to recent months, the planned June meeting and social has been cancelled. 


It seems so long ago since we have been together.  I am sure that many of you share my disappointment that we have had to cancel all of our OHS meetings and activities since March due to the "social distancing, shelter-in-place, etc." guidelines provided by the CDC as a defense against this year's seemingly uncontrolled spread of the Covid-19 virus.    Whether we followed mandatory guidelines or optional recommendations, this season's difficult decisions to cancel OHS activities in order to minimize person-to-person contact were given careful thought, and were made in consideration for the health and well-being of all of our members, family and friends.


Without the benefit of a crystal ball, I am hoping that we will all be able to benefit from the much-anticipated recovery, and that we will have a chance to see things begin to return to normal this by fall.  We will provide updates on OHS activities as information is available.


Until we meet again, stay healthy and safe.  Happy gardening!
Dave Edwards - Program Director
Oklahoma Horticultural Society


The Oklahoma Horticultural Society encourages interest in horticulture in Oklahoma by sharing our knowledge of growing vegetables, fruits, flowers, trees and shrubs.  We aquaint ourselves with the best plants and practices for our region by touring inspiring private and public gardens, hosting knowledgeable speakers and welcoming the public to these events.


OHS supports the future of horticulture by providing scholarships to students of the horticultural science degree programs in Oklahoma.


Become a Member


The Oklahoma Horticultural Society.

The Society was formed in 1970 to further the appreciation of gardening and horticulture throughout Oklahoma.  This nonprofit organization recognizes and promotes excellence in gardening and horticulture across Oklahoma and the United States.

The OHS-supported gardening show airs weekly

Here's a checklist for gardeners, new and experienced, to use as a guide as they work in  their  yards and gardens   These suggestions are great for helping you stay focused on what is important to take care of during these specific times -  October


by David Hillock, Department of Horticulture & Landscape Architecture

Oklahoma State University




  • You can continue to replant or establish cool season lawns like fescue.

  • The mowing height for fescue should be lowered to approximately 2 ½ inches for fall and winter cutting.

  • Fertilize cool season grasses the first of October with a complete fertilizer at the rate of 1 to 1 ½ pounds of nitrogen per 1,000 square feet.

  • Broadleaf weeds like dandelions can be easily controlled during October (HLA 6421 & 6601).



  • Plant cool season annuals like pansies, ornamental cabbage or kale, snapdragons and dusty miller when temperatures begin to cool.

  • Begin planting spring-flowering bulbs like tulips, hyacinths, crocus and daffodils.

  • Peonies, daylilies, and other spring-flowering perennials should be divided or planted now.

  • Dig and store tender perennials like cannas, dahlias, and caladiums in a cool, dry location.

  • Purchase trees from nurseries and garden centers at this time to select the fall color you prefer.

  • Plant container-grown trees and shrubs this month.

  • Check and treat houseplants for insect pests before bringing them indoors and repot rootbound plants.


Fruits & Vegetables

  • Dig sweet potatoes and harvest pumpkins and winter squash.

  • Remove green fruit from tomato plants when frost threatens.

  • There is still time to plant radishes and mustard in the fall garden.

  • Remove all disease and insect infested debris from the garden to prevent overwintering of various garden pests.


Oklahoma Gardening is produced by the Oklahoma Cooperative Extension Service through the Department of Horticulture and Landscape Architecture and Agricultural Communications Services.

Current OHS Board of Directors

President:  Susan Satterlee

Vice President:  Kathleen Hardwick

Secretary:  Marianna Sikkar

Treasurer:  Karen Filley

Program Director:  Dave Edwards

Office Manager:  Cathy Hersom

Board Members through 2019

Jamie Brown

Joe Howell

Julia Laughlin

Wanda White

Board Members through 2020

Sharon Beasley

Jennie Brooks

Dave Edwards

Casey Sharber Hentges

Johnny Satterlee

Board Members through 2021

Sandy Casteel

Haldor Howard

Janet Latham

Allan Storjohann

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Oklahoma Horticultural Society

P.O. Box 75425

Oklahoma City, OK  73147