🍎 Mountain Apple
What it looks like
How to grow
Strictly tropical — this is a south-Florida-and-points-south tree that sulks below the mid-30s. Plant in rich, well-drained soil with wind protection; young trees appreciate afternoon shade in their first year. It's in the myrtle family, so treat it like its cousins the guava and jaboticaba.
Water & feeding
Regular deep watering, especially while fruiting — drought stress drops the fruit faster than you can say 'waxy bell.'
Common problems
- Cold damage — the limiting factor everywhere north of zone 10b
- Fruit flies love the soft ripe fruit; harvest promptly
- Myrtle rust can spot the leaves in wet years
Harvest
Pick when fully colored (red, pink, or white depending on variety) and slightly soft — they don't ripen much off the tree. Eat fresh; the crisp, watery flesh is 90% refreshment.
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Saving seeds
Mountain apple is a tropical fruit tree, and its seed comes with a deadline: it is recalcitrant, which means it cannot be dried and stored like a bean seed. The moment you eat the fruit, the clock is ticking. Clean the pulp off the seed, rinse it, and sow it fresh — within days, not weeks. Seed that dries out on the counter is seed that will not sprout.
Sow the seed about an inch deep in a warm, well-draining mix and keep it moist and warm, roughly 75 to 85°F. In Florida’s warm season that is just a sunny spot out of direct scorching sun. Germination usually comes within a few weeks, though some seed takes longer, so do not give up on a pot at three weeks. Keep the mix damp but never soggy; a recalcitrant seed that dries out is dead, and one that sits in water will rot.
The honest headline is the same one that applies to most fruit trees: a seedling is a gamble, not a copy. Mountain apple seedlings vary in fruit size, flavor, and how many years they take to bear, and a seedling from a named cultivar will not come true to type. If you want a specific variety, grafting is the route. Seed is for the adventure — a new tree that might be better than its parent, or might be a perfectly fine shade tree with mediocre fruit.
Save seed from fruit that was fully ripe and delicious, from a healthy tree, and sow more than you need. In most of Florida this is a warm-climate tree that wants protection from cold, so start your seedlings in pots and keep them sheltered through their first cool season. And the storage rule is simple because there is no storage: sow it fresh, or do not bother saving it at all.