How to Plant Grapefruit Seed
The grapefruit (Citrus paradisi) has come a long way. From its first recorded history in the West Indies during the mid 1700s to propagation in Texas’ Lower Rio Grande Valley during the early 1900s, the grapefruit has become a fruit that can stand alone or be used as an ingredient in the kitchen. Grapefruit can be grown at home from seeds and planted outdoors in U.S. Department of Agriculture plant hardiness zones 9 through 11. Although fruit production can be more limited than that of commercially grown trees, growing a grapefruit tree from seed should produce fruit.
Remove the seeds from a fresh grapefruit. Wash the seeds under running water and pat them dry with a towel.
Fill a 4-inch pot three-fourths full with a rich potting mix that drains well.
Press one grapefruit seed into the center of the pot. Push the seed into the soil so it is twice as deep as the seed is long. For example, if the seed is 1/4 inch long, plant the seed 1/2 inch deep.
Water the newly planted seed until the soil is moist but not soggy. Cover the pot loosely with plastic wrap to create a greenhouse effect to keep the seed warm and encourage growth.
Place the covered pot in a brightly lit, warm location with a consistent temperature of around 70 degrees Fahrenheit. Monitor the progress of the plant, adding water as necessary to keep the soil moist. Watch for the seed to sprout and leaves to form.
Things You Will Need
A south-facing window covered with sheer curtains provides sufficient light without exposing the seedling to direct sunlight, which may burn the plant.
Transplant the seedling to larger pots, such as 6-, 8- and 12-inch containers, as it grows so the roots will have plenty of room.
Under ideal conditions the grapefruit seedling may flower and produce fruit in six to seven years.
Grapefruit trees grown from seed are susceptible to foot and root rot caused by the Phytophthora pathogen.
- Texas A&M University Horticultural Sciences Department : Home Fruit Production-Grapefruit
- University of Vermont Extension: Growing Citrus as Houseplants
Tara Shore holds a Bachelor of Science in business finance and has written for online publications since 2007. She has professional experience in banking, accounting, travel and teaching. Shore is also a master gardener and a travel agent.
How to Plant Grapefruit Seed. The grapefruit has come a long way. From its first recorded history in the West Indies during the mid 1700s to propagation in Texas’ Lower Rio Grande Valley during the early 1900s, the grapefruit has become a fruit that can stand alone or be used as an ingredient. Grapefruit can be …