How to Grow an Apple Tree from an Apple Seed
Growing apple trees from seeds can be a rewarding, long-term project, offering the chance to grow unique, sometimes completely new varieties of apples. Here’s a step-by-step guide on how to do it:
1. Understanding Genetic Variability
Unlike grafted apple trees, which produce predictable fruit, apple seedlings grown from seeds won’t produce fruit identical to their parent tree. Apple trees grown from seeds are like genetic lotteries, meaning the offspring could have different flavors, sizes, or habits. However, these trees can still be useful—whether for cider, wildlife, or as pollinators for other apple varieties.
2. Cold Stratification for Seed Germination
Apple seeds need a period of cold to break dormancy. This process, called cold stratification, simulates winter conditions and prepares the seed for sprouting:
- Store your apple seeds in a damp paper towel inside a partially open plastic bag.
- Place the bag in the refrigerator for at least 6 weeks. Check regularly to ensure the paper towel stays damp.
If you’ve collected seeds from apples that have been stored for months, like locally sourced apples late in the season, the seeds may already have undergone some natural stratification.
3. Sprouting the Seeds
After the stratification period, some seeds may begin to sprout while still in the paper towel. Since apple seeds have a relatively low germination rate (around 30%), seeing a few sprouted seeds is a positive sign.
4. Planting the Seeds
Once the seeds are ready, plant them either outdoors or in pots. For better success:
- Use seed-starting soil in recycled nursery pots.
- Plant a dozen seeds in each pot and keep the soil warm (around 24°C).
- Keep the soil moist but not waterlogged.
Seeds should emerge within 1-2 weeks if the temperature is warm enough. Grow the seedlings in pots until they reach about 4 inches in height.
5. Transplanting the Seedlings
Once nighttime temperatures are consistently above 10°C in spring or early summer, the seedlings can be transplanted into the ground. Apple trees grown from seed will grow vigorously as they aren’t grafted onto dwarf rootstocks, so they will become full-sized trees unless pruned properly.
6. Spacing and Growth
Apple trees grown from seed need plenty of space to grow. Plant them 20 feet apart to accommodate their full size. Regular pruning will help maintain a manageable size and encourage healthy growth.
7. Fruit Bearing Timeline
Seed-grown apple trees take about 5 years to start bearing fruit, which is comparable to grafted nursery trees. Although nursery trees are usually larger, they can be root-bound and take time to adjust after transplanting. Seedlings, on the other hand, develop strong, vigorous root systems and may surpass nursery trees in size within 3 years.
Conclusion
Planting apple seeds offers a unique opportunity to grow vigorous, strong trees with the potential to live for centuries. While the fruit’s quality may be unpredictable, it’s a fun and fulfilling way to expand your garden. By following the steps of cold stratification, proper planting, and care, you can cultivate healthy apple trees that may surprise you with their harvest in a few years!
