DESIGNING WITH THIS PLANT
USDA Hardiness Zone:
- Pecan (Carya illinoinensis) – Zone 6-9
- Shellbark Hickory (Carya laciniosa) – Zone 6
- Shagbark Hickory (Carya ovata) – Zone 4-7
- Hican (Carya x hybrids) – Zone 5
- Pecan (Carya illinoinensis) – Zone 9-1
- Shellbark Hickory (Carya laciniosa) – Zone 8-1
- Shagbark Hickory (Carya ovata) – Zone 8-1
Chill Requirement: 650-1,550 hours/units depending on the species/variety.
Plant Type: Large to very-large Trees
Leaf Type: Deciduous
Forest Garden Use: Canopy Layer
Cultivars/Varieties: A few very worthwhile species. There are quite a few cultivars and hybrids available.
Pollination: Self-Sterile (although a few varieties are self-fertile). Requires cross-pollination by other cultivars for the nuts to be produced. Pollinated by the wind. Trees can be pollinated by the wind carrying pollen from other trees up to 10 miles away!
Flowering: Late Spring to Early Summer.
Years to Begin Bearing: 3-10 years for Pecans (sooner in the south); 40 years for wild Hickories (only 3-7 years if the tree was grafted)
Years Between Major Cropping: 1-2 years
Years of Useful Life: minimim of 100 years, but most will be productive for at least 200 years. It is not uncommon for trees over 400 years old to still produce large yields.