How to grow pecan
Family Juglandaceae. Hardy to USDA hardiness zone 6a+ (U.S. Department of Agriculture). Full sun. Ready in 6-10 years to bearing (perennial tree).
Sun
Full sun
Spacing
40-70 ft
Days to harvest
6-10 years to bearing (perennial tree)
Hardiness
Zone 6a+
What growers actually recorded
Loading zone 7b results…
When to plant pecan
- Transplant out: ~2 weeks after last frost.
Companion plants for pecan
Plant with: No specific companions recorded for this crop. Group it by water and sun needs instead.
Avoid near: Most garden vegetables (roots secrete juglone, similar to black walnut, though less concentrated).
Common pests & problems
Pecan weevil, aphid, scab in humid climates.
Grower's tip
Needs two different cultivars nearby for reliable pollination and a very large footprint; plan on it eventually shading a big chunk of the yard.
When to plant pecan in your zone
Free month-by-month sowing and transplanting lists, built from frost dates for your USDA (United States Department of Agriculture) hardiness zone.
Soil & water for pecan
Soil & pH
6.0-7.0: near neutral
Loose, well-drained loam with 3-5% organic matter.
Compost 2 in worked into the top 6 in of soil each spring.
Watering
1 in / week
Deep drip at the base twice a week beats a daily shallow sprinkle.
Consistent moisture prevents most crop problems.
Knowing when to harvest
- Outer husks split open along their seams and turn brown, exposing the shell.
- Nuts drop naturally or with light shaking once husks split fully.
- Gather promptly off the ground to avoid mold and squirrel loss.
Storing & keeping
In-shell nuts keep several months at room temperature; shelled kernels should go in the fridge for up to a year or the freezer for two years, since the oil content turns rancid at room temperature.
What to expect
Per plant: 50-100+ lb from a mature tree, bearing by year 6-10
Pecan trees are large and slow to bear; not a fast payback crop.
Troubleshooting pecan
Nuts fall with black, shriveled kernels
Likely cause: Pecan scab, a fungal disease favored by humid weather
What to do: Choose scab-resistant varieties for the region, apply fungicide on a schedule in humid climates.
Alternating heavy and near-empty crop years
Likely cause: Natural biennial bearing tendency in pecan
What to do: Adequate nitrogen and zinc fertility and thinning of a heavy crop can moderate the swing somewhat, but the tendency is inherent to the species.
Varieties worth growing
Elliott
Scab-resistant, well-suited to humid Southeast conditions.
Pawnee
Early-ripening, useful for shorter growing seasons at the crop's northern limit.
Growing pecan in containers
Not viable. Pecan is a large forest tree with a deep taproot; it requires open ground and decades to reach productive size.
Nutrition
A meaningful source of vitamins, minerals, and fiber when eaten fresh.
Common questions
Do I need two pecan trees?
Yes for reliable crops. Pecan is wind-pollinated and self-incompatible in timing between male and female flower maturity on a single tree; plant two varieties with overlapping pollen shed.
Where these numbers come from
- USDA Plant Hardiness Zone Map (2023 revision). Zone assignment and the 30-year normals behind every cold-hardiness figure.
- NOAA NCEI 1991-2020 Climate Normals. Frost dates, growing-season length, and the probability bands on both.
- Cornell, UMN, and UC Davis Cooperative Extension crop guides. Spacing, days to maturity, soil pH targets, and per-plant yield ranges.
- USDA FSIS / FDA Produce Safety guidance. Wash, cure, and cold-storage handling numbers.
Ranges are regional guidance, not a promise for your yard. Your own logged results always override the published range.