The June Plum, scientifically known as Spondias dulcis, is a popular tropical fruit tree cherished for its edible, tangy-sweet fruit. Native to the Pacific Islands and parts of Southeast Asia, this fast-growing tree is also called Golden Apple, Ambarella, or Hog Plum in various regions. Growing a June Plum tree from seed offers a rewarding propagation method, allowing gardeners to cultivate this unique fruit tree in suitable climates or as a container plant.
Extracting and Preparing June Plum Seeds
To grow a June Plum from seed, select ripe fruit, which typically turns golden-yellow. After enjoying the fruit, thoroughly clean the hard, spiny pit to remove all residual pulp. Remaining fruit flesh can inhibit germination or encourage mold growth. Allow the pit to dry briefly, but not completely, as some moisture helps ensure better germination. While June Plum pits can be planted directly, cracking the pit to extract the inner seed may increase germination success, though it is not strictly necessary.
Germinating June Plum Seeds
Plant the prepared June Plum seed in a well-draining potting mix, ideally enriched with organic matter. A good mix includes coco coir or peat moss, along with perlite or vermiculite for improved drainage and aeration. Plant the seed approximately 1 to 2 inches deep in a pot. Consistent moisture is important; water the soil lightly to keep it moist without becoming waterlogged. Place the pot in a warm location with bright, indirect light or dappled shade; germination typically occurs within three to six weeks, though some periods extend to several months.
Nurturing June Plum Seedlings
After germination, June Plum seedlings require care to establish growth. Provide bright, indirect light, gradually transitioning to more direct sunlight as the seedling matures. Young trees benefit from consistent watering, ensuring the soil remains moist but never soggy, which can lead to root issues. Once the seedling has developed a few sets of true leaves, consider a diluted, balanced fertilizer, such as a 10-10-10 formula, applied every two to three months during its first year. Monitor for pests and diseases, addressing issues promptly; once well-established, typically around 6 inches tall, the seedling is ready for transplanting into a larger pot or its final outdoor location.
Long-Term Growth and Fruit Production
June Plum trees can begin producing fruit at a young age, sometimes within one to two years when grown from seed. They thrive in full sun exposure, requiring at least six to eight hours of direct sunlight daily for optimal fruit production. Well-draining soil is important, and the tree tolerates various soil types, though a slightly acidic to neutral pH of 5.5-7.5 is preferred. Mature June Plum trees can reach heights of 30 to 40 feet outdoors, but they can be pruned to a smaller size or grown successfully in containers. These trees are sensitive to frost and perform best in warm, humid tropical and subtropical climates, making them suitable for USDA Zones 9-11 when grown outdoors, or as potted plants brought indoors during colder months.