How to Grow Soursop from Seed

Soursop is a low-branching, bushy tree that actually originated from Central America.  The scientifically name is Annona muricata and the English name is soursop. It is also called guanabana in El Salvador and other Spanish-speaking countries. The soursop plant tree can grow up to twenty-five to thirty feet tall and it produces an oval-shaped fruit with tender yellow-green skin and white, juicy flesh that can be made into drinks, sherbet, preserves and sweets. The soursop plant tree are grown in a variety of countries, including Mexico, the West Indies, China, northern South America, Australia and Africa. The soursop plant tree prefers a tropical climate and they cannot survive a frost, often suffering damage at thirty degrees Fahrenheit and dying at twenty-six degrees Fahrenheit. USDA plant hardiness zones ten and eleven in rich, well-drained soil with 5 to 6.5 pH suit the soursop plant tree best.  The following are the steps on how to grow soursop from seed;

Step 1. To get started collect and wash the soursops seeds and then prepare a warm, shady indoor spot for their germination. Plant the soursop seeds in peat pots that are filled with potting soil. Make sure you keep the soil moist to the touch. The soursop seeds will germinate in fifteen to thirty days if viable.

Step 2. You have to prepare a sunny, south-facing spot with wind protection in the garden and also rake two inches of compost into the soil.

Step 3. You can transplant about twelve inch-high seedlings into the yard in the spring, spacing them at least twelve feet apart. You have to dig holes that are large enough to contain the root ball of each of the plant. Make sure you cover the base of the plant with soil, and then add about three inches of mulch to keep it moist.

Step 4. Make sure you water the Soursop plants often enough to keep the soil moist, but not wet, especially during hot weather. When the weather turns cool in the winter you can reduce water intake. The soursop plants tolerate drought very well, though it can develop pest problems if kept too wet.

Step 5. You can treat the soursop plants with 10-10-10 fertilizer, by using a total of about one-half pound of fertilizer per tree during the first year, and then later split the amount quarterly at intervals. In the second year you can increase the amount to one pound. After that, each year you can use about three pounds of fertilizer.

Step 6. Reapply mulch to the soursop plants trees each year, by widening the application area to about five feet as the soursop tree’s root system grows. 

Some of the Things You Will Need

  • Compost
  • 10-10-10 fertilizer
  • Rake
  • Soursop seeds
  • Shovel
  • Potting soil
  • Mulch
  • Peat pots

How to Harvest Soursop

You can easily harvest the soursop fruit while it is still firm and yellow-green in color. Don’t allow the soursop fruit to soften on the tree. Instead you can store the firm fruit in the refrigerator for about four to five days until it becomes soft to the touch.

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