20 Pink Guava Seeds Psidium guajava Guava is a small, single or multi-trunked trees to 20 ft in height with a broad, spreading or upright canopy. Trees may be single or multi-trunked. The bark of the trunk is attractive with a mottled greenish-brown to light brown color. Pink guavas are a rouge-fleshed, tropical variety of Psidium guajava. The Pink guavas are the most aromatic and can range from pale pink to deep orange-magenta. Their color is due to a naturally occurring organic pigment called carotenoid, the same compound that gives carrots and tomatoes their distinct red color. Place seeds in a bowl of water and let soak for two weeks prior to plant. Alternatively, as a quick method of starting seeds, boil them for five minutes in a pot of water. These steps will boost germination speed. Plant in late Spring to early Summer Germination can take up to 8 weeks Prepare a germinating medium consisting of sand or equal parts sand and topsoil and place in pots or directly in a soil bed. Plant seeds 1 to 1 1/2 inches apart and 1/4-inch deep. Provide plenty of water to keep soil moist. Transplant seedlings into larger pots when they develop their first set of true leaves. Carefully remove them, along with their root system, and place in individual pots containing clay loam soil and compost. Prepare a final growing location for the guava trees that contains rich, well-drained and deep soil and is located in full sun exposure. Place trees at least 33 feet apart for full production, but you can plant them as close as 16 feet, although they will produce less fruit. The trees thrive in a temperature range of 73 to 82 F.