For dedicated gardeners, here are suggestions from the California Assn. of Nurserymen on what to do in the garden this week:
* Plant a tree this summer to shade the hot spot in your garden next year. Choose from a good selection of container trees available now at nurseries.
* One last planting of dahlia tubers will give you fall bloom as the plants you set out earlier are dying back.
* When spraying plants for insects and diseases, don’t forget the underside of the leaves.
* It’s not too late to plant tomatoes. Set them deeper in the ground than they were in the nursery container to prevent weak, leggy plants.