It is wise to build supports for floppy plants and vines in the garden, it makes it easier for them to grow. Support Your Plants
Now that the soil is warm and things are starting to grow you should apply both mulch and fertilizer thoroughly. Fertilize and Mulch
When planting annuals you should loosen up the roots beforehand, this way it will encourage a stronger growth. When Planting Annuals
New rosebushes should be planted now, before their growth starts and their buds swell. Planting new Rosebushes