Grow Your Own Guava Trees from Seed! Instructions: 1. Prepare Soil: Choose well-draining soil with a pH between 5.5 and 7.0. Loosen the soil to a depth of at least 12 inches and remove any rocks or debris. 2. Soak Seeds (Optional): Some gardeners recommend soaking guava seeds in water for 24 hours before planting to improve germination. 3. Plant Seeds: Plant guava seeds in pots or directly in the ground, about 1 inch deep. Cover with soil and water gently. Seed packets , Organic seeds , Garden seed kits , Heirloom seeds , Non-GMO seeds , Vegetable seeds , Flower seeds , Herb seeds , Seed starter kits , Bulk seeds , Fast-growing seeds , Seed planters , Annual seeds , Perennial seeds , Indoor seed kits , Seed catalog , Microgreen seeds , Wildflower seeds , Seed subscription box , Seed tray sets