Visit TLC Garden Centers today to get free expert advice for your lawn and garden. TLC Garden Centers has been serving Oklahoma for over 45 years. Prepping for Spring Begin the vegetable garden with cool season crops such as potatoes, onions, asparagus, rhubarb and strawberries. Seed semi-hardy vegetable crops, such as lettuce, turnips, radishes, after Feb 15th. Till flower and vegetable beds with Back to Earth Soil Conditioner or purchase a raised bed garden ki