WorldFloraDB - Juglans nigra 'Thomas'

Characteristics

A perennial monoecious deciduous tree.

Life form	perennial
Growth form	tree
Growth support	-
Foliage retention	deciduous
Sexuality	monoecy
Pollination	anemogamy
Spread	-
Mature width (meter)	-
Mature height (meter)	-
Root system	-
Rooting depth (meter)	-
Root diameter (meter)	-
Flower color	-
Blooming months	-
Fruit color	-
Fruiting months	-
Nitrogen fixer	-
Photosynthetic pathway	-

Environment

Light	-
Soil humidity	-
Soil texture	-
Soil acidity	-
Soil nutriment	-
Hardiness (USDA)	-

Usage

Uses	-
Edible	-
Therapeutic use	-
Human toxicity	-
Animal toxicity	-

Cultivation

Native selection discovered by Joseph W. Thomas of King of Prussia, Pa. First propagated in 1880. Most widely propagated black walnut cultivar to this day. Medium-sized. oblate nut weighs 19 g and yields 24% kernel. Precocious and prolific. As tree matures, kernels do not fill as well. Susceptible to anthracnose. Trees grows vigorously but is subject to wind damage. Thomas is the standard to which all other cultivars are compared. Recommended in Nebraska, Michigan, and New York. Origin: Tree: Fruit:

More

Native selection discovered by Joseph W. Thomas of King of Prussia, Pa. First propagated in 1880. Most widely propagated black walnut cultivar to this day. Medium-sized, oblate nut weighs 19 g and yields 24% kernel. Precocious and prolific. As tree matures, kernels do not fill as well. Susceptible to anthracnose. Tree grows vigorously but is subject to wind damage. Thomas is the standard to which all other cultivars are compared. Recommended in Nebraska, Michigan, and New York. Origin: Tree: Fruit:

Mode	-
Germination duration (days)	30 - 180
Germination temperacture (C°)	10 - 15
Germination luminosity	-
Germination treatment	stratification
Minimum temperature (C°)	-29
Optimum temperature (C°)	13 - 28
Size	-
Vigor	-
Productivity	-

Identifiers

LSID	-
WFO ID	-
COL ID	-
BDTFX ID	-
INPN ID	-
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Juglans nigra 'Thomas'

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