Guavas are evergreen shrubs or small trees that can grow 10-12 feet, make a handsome addition to your landscape and provide a wealth of fruit in the early fall.   These are a sub-tropical fruit that cannot tolerate temperatures that range below freezing or get over 100F.  Here in our environment, they like a bright sunny location that has some protection from frost during the winter months.   Guavas produce edible, fragrant flowers in the spring, just as the weather is beginning to warm up.  The fruit grow throughout the spring and summer and are 2-4 inches long by the time they are ready for harvest in October.   When planting your guava into the ground, dig a hole that is both twice as deep and twice as wide as the container that it comes in.  Into the loose soil at the bottom of the freshly dug hole, incorporate two heaping handfuls of a good organic compost, 5 cups each of landscape mix and worm castings, and two cups of azomite.   Place the plant on top of this mixture, and steady it, as you fill in the remaining soil.  While backfilling, add a sprinkling of compost, landscape mix and worm castings after every few handfuls of soil.  In the following years of your guavas life, mix 6 cups of both landscape mix and worm castings into the top few inches of soil under the drip line, in the early spring and again in mid-summer.  Cover the soil with 1-3” of mulch to protect the shallow root system and to retain a moist soil.   Water your plants deeply and then allow the soil to dry out to a depth of several inches, before irrigating again.