Where: Tulsa and surrounding area
Cold Zone: 6
Heat Zone: 8
Now that we are moving into the full blown growing season, here is a list of chores for our area.
The spring-flowering shrubs should be finished blooming and now is the time to prune them. You don’t have to, of course, but if you need to correct a plant’s form, reduce its size or cut out dead wood, now is the time. These shrubs, which include azaleas, forsythias, weigelas and quinces, grow next year’s blooms on old wood. Pruning later in the year will remove those flowers.
Cool-weather annuals, such as pansies and violas, are starting to look tired and leggy as the days get warmer. It’s time to pull them up and replant with warm-weather annuals. Impatiens, marigolds and petunias are good replacements.
Vegetables which have already been planted should really start growing now as the soil warms up. Now is a good time to set out tomatoes, peppers, squash, melons and eggplants. Caterpillars may be consuming your cruciferous vegetables. Keep them sprayed or dusted with Bacillus thuringiensis (Bt) and reapply after it rains.
If you have older non-disease resistant roses, you may notice black spot or mildew starting to show up. Spray every 7-10 days to keep it under control.