PITTSBURG -- If you're scratching your head over why the salad ingredients you tried to grow didn't fare well, a local gardening group might be able to help.
Contra Costa Master Gardeners will offer a presentation Saturday on why vegetables fail to thrive.
Master gardener Terry Lippert will speak at 10 a.m. in the community garden of Los Medanos Community Health Care District at Loveridge and Leland roads in Pittsburg.
She'll discuss the things that often go wrong in vegetable gardens and how to correct them.
Attendees will learn why tomatoes crack and zucchinis shrivel and die, as well as why broccoli and cauliflower sometimes produce tiny heads and why onions produce flowers and fail to develop good bulbs.
Lippert also will offer tips on which planted vegetables consistently produce the best results.
Reach Rowena Coetsee at 925-779-7141.