Can you grow a plum tree from a pit? Yes. To grow plum tree from pit, chill the cleaned pit in moist sand and peat at 33 to 41°F (1 to 5°C) for about 90 days, then plant it 2 inches (5 cm) deep in spring, per Iowa State. The seedling will not match the parent, and fruit takes years.
Key takeaway: You can grow plum tree from pit with a fridge, a bag of damp mix and some patience. Iowa State University Extension gives European plum seed a 90-day cold treatment and a 2-inch (5 cm) planting depth. This guide covers store-bought pits, stratification, germination time, and what kind of fruit, if any, a seedling plum will give.
| Step or Fact | Plum From Pit | Source |
|---|---|---|
| Cold stratification | About 90 days at 33 to 41°F (1 to 5°C) | Iowa State Extension |
| Stratification mix | Moist 50:50 sand and peat moss | Iowa State Extension |
| Planting depth | 2 inches (5 cm) | Iowa State Extension |
| Alternative | Sow in fall and let winter stratify it | Iowa State Extension |
| True to type? | No; most cultivated plums do not come true | Iowa State Extension |
| Bearing age (nursery tree) | 4 to 6 years from planting | NMSU Extension |
| Pollination | Variety may need a second plum | NMSU, Univ. of Minnesota (Ask Extension) |
Can You Grow a Plum From a Store-Bought Pit?
Often yes, but results vary. A store plum pit can sprout, yet Iowa State notes that seeds of most cultivated plums will not reproduce true from seed. A University of Minnesota Extension expert adds that if the parent needed cross-pollination, the seedling is hard to predict and the pit may not germinate at all. To grow plum tree from pit successfully, start several pits.
- Ripe fruit only: Iowa State says to harvest fruit when fully mature.
- Cold-stored fruit: supermarket plums may have weaker seed (our guidance).
- Clean pits: scrub off all flesh to reduce mold.
- Plant extras: sow three to five pits for one good seedling (our guidance).
How Do You Germinate a Plum Pit, and How Long Does It Take?
To grow plum tree from pit indoors, give it a cold, moist winter in the fridge. Iowa State Extension recommends stratifying Prunus seed in a moist 50:50 mix of sand and peat at 33 to 41°F (1 to 5°C); European plum (*Prunus domestica*) needs about 90 days. Then plant 2 inches (5 cm) deep in spring. Sprouts usually appear within a few weeks of warm planting (our guidance).
- Clean and rinse the pit; let it air-dry for a day (our guidance).
- Mix equal parts damp sand and peat in a jar or zip bag.
- Bury the pit in the mix, label it with the date and refrigerate.
- Check monthly; plant any pit that cracks and sprouts early (our guidance).
- After about 90 days, sow 2 inches (5 cm) deep in a deep pot.
- Keep the pot moist and in bright light.
Fall sowing outdoors is the easy option, because winter does the stratifying for you, per Iowa State.
Will a Plum Grown From a Pit Ever Fruit?
It can, but it takes time and may disappoint. When you grow plum tree from pit, you are growing a brand-new variety. New Mexico State University Extension says even nursery plum trees take 4 to 6 years from planting to bear, and a seedling starts younger, so expect at least that long (our guidance). The fruit will differ from the parent. Some plums are self-unfruitful, so a seedling may need a second plum nearby to set fruit.
- Grafted trees: the Minnesota expert notes a pit from a grafted or hybrid tree may give a less productive tree.
- Pollination: NMSU explains that self-unfruitful trees can bloom heavily yet bear nothing.
- Frost: Japanese plums bloom early and are more exposed to spring frost, per NMSU.
- Use as rootstock: a seedling can be grafted later with a named variety (our guidance).
- Best reason to grow plum tree from pit: learning, rootstock and the chance of a good new plum (our guidance).
If you just want fruit, buy a grafted tree; if you want a project, grow plum tree from pit anyway.
What Pot and Care Do Plum Seedlings Need?
Once you grow plum tree from pit to seedling, use a deep pot with free-draining mix and full sun. Plum seedlings grow a long first root, so a tall pot of at least 1 gallon (4 L) works well for year one (our guidance). Water when the top inch (2.5 cm) of mix dries, and move the tree outside after frost. Plant in the ground in its second spring.
- Light: full sun outdoors or a strong grow light indoors.
- Mix: see coco coir vs peat moss for soilless choices.
- Small spaces: see hydroponic dwarf fruit trees.
- Bonsai: plums also suit container training; see hydroponic bonsai.
Can You Start a Plum Pit in Water or Hydroponics?
You can sprout one, but not finish a tree. Few people grow plum tree from pit entirely in water. After stratification, a cracked pit can root in a damp paper towel or a peat pellet, then move to a pot (our guidance). Extension guides cover soil and pots, not hydroponic plum trees, so treat soilless growing as a seedling stage only. Plums need winter chilling to fruit, which a heated room cannot provide (our guidance).
- Germination: see hydroponic germination methods.
- Indoor pollination: if a potted tree ever flowers, see indoor pollination.
FAQ About How to Grow Plum Tree From Pit
How long does it take to grow plum tree from pit to fruit?
Usually more than the 4 to 6 years a nursery tree needs.
Do plum pits need cold stratification?
Yes; about 90 days at 33 to 41°F (1 to 5°C).
Should I crack the plum pit shell to grow plum tree from pit faster?
It is optional; Iowa State stratifies the whole seed.
Will my plum tree be like the parent?
Usually not; most cultivated plums do not come true.
How deep should I plant a plum pit?
About 2 inches (5 cm) deep.
Can I plant the pit outdoors in fall?
Yes; winter stratifies it naturally.
Sources
- Iowa State University Extension — Germination of Tree Seed
- New Mexico State University Extension — Why Fruit Trees Fail to Bear (Guide H-308)
- Ask Extension (University of Minnesota Extension expert) — Planting a Plum Tree?
- Photo credits (Wikimedia Commons, edited with titles): Red-Plums by Evan-Amos (CC0); Prunus domestica subsp. oeconomica 2018-05-01 9981 by Salicyna (CC BY-SA 4.0)