Black Walnut Growing Guide (Short Version)

1. Collect Seeds (Fall)

• Gather fallen nuts.

• Remove husks (wear gloves).

• Rinse.

• Float test: sink = good.

2. Cold Stratify (Winter)

• Needs 90–120 days cold + moist.

• Outside: nuts in moist sand/peat in rodent-proof box.

• Fridge: bag with damp sand/peat at 33–41°F.

• Check monthly.

3. Germination (Spring)

• White root (radicle) appears first.

• Plant as soon as root shows.

4. Potting

• Use deep pots (taproot).

• Soil: well-drained mix with some sand.

• Plant nut 1–2" deep.

• Keep moist, not soggy.

• Full sun.

5. Seedling Care

• Water deeply weekly.

• More sun = stronger growth.

• Protect from squirrels/rabbits.

• Repot if root hits bottom.

6. Planting Outdoors

• Best time: early spring or late fall.

• Full sun, deep soil.

• Hole = root depth, twice as wide.

• Plant with root collar at soil level.

• Water well.

• Mulch (not against trunk).

• Use tree guard.

7. After Planting

• Keep watered first year.

• Maintain weed-free, mulched circle.

• Protect from deer.

• Expect slow top growth early (taproot developing).

Summary:
Collect → cold stratify → deep pot → sun + moisture → plant in spring/fall → mulch + protect → slow start, strong long-term growth.