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Hardiness: USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F)
Sun Exposure: Full Sun
Danger: Seed is poisonous if ingested Parts of plant are poisonous if ingested
Bloom Color: White/Near White
Bloom Time: Late Spring/Early Summer
Foliage: Grown for foliage Deciduous Smooth-Textured
Other details: This plant is attractive to bees, butterflies and/or birds Flowers are fragrant
Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Patent Information: Non-patented
Propagation Methods: From hardwood cuttings From seed; direct sow outdoors in fall
Seed Collecting: Allow pods to dry on plant; break open to collect seeds Seed does not store well; sow as soon as possible
On Jul 24, 2009, CharlieCarrah from Losantville, IN (Zone 6a) wrote:
I hate these trees. Granted, they smell beautiful when they flower in the spring, but my trees are very old (100+) and are prone to spew limbs all over the yard when it storms. The trees have holes in them which are very attractive to starlings who use them for nesting. Ugh. If they didn't provide so much shade around the house, I'd cut every single one of them down!
On Mar 15, 2008, distantkin from Saint Cloud, MN (Zone 4b) wrote:
Black locust (Robinia pseudoacacia) is considered invasive by the Minnesota DNR
"Ecological Threat:
* Invades primarily disturbed habitats, degraded wood, thickets and old fields crowding out native vegetation of prairies, oak savannas and upland forests, forming single species stands.
* It reproduces vigorously by root suckering and stump sprouting forming a common connecting root system.
* It is native to the U.S. and occurs naturally on the lower Appalachian mountain slopes. It has been extensively planted for its nitrogen-fixing qualities and its hard wood."
On Nov 19, 2006, lkz5ia from Denison, IA (Zone 5b) wrote:
One of the most beautiful trees when in flower. Also, the foliage gives the tree a tropical appearance. If grown in a forest setting, the tree is less likely to succumb to locust borers.
On Feb 6, 2006, raisedbedbob from Valley Lee, MD (Zone 7a) wrote:
The flower clusters make outstanding fritters. In addition, an infusion made from the flowers can be combined with lemon juice, sugar and Surejell to make a pleasant jelly. The infusion is pale yellow-green and bland smelling. When the lemon juice is added, it turns pale pink and becomes somewhat aromatic. CAUTION: THE ROOTS, BARK, LEAVES AND SEEDS ARE POISINOUS.
On May 4, 2005, Danda99 from Moosic, PA (Zone 6a) wrote:
Fast grower. Wonderful smelling showy flowers...heavenly scented. Nice shade tree. Leaves dont cause much raking headaches in autumn as they are fairly small. Very picturesque tree in all seasons. Winter silhouette is very oriental in look. Common tree yet unique. Can get to 80 feet tall in a good location. Can be invasive in certain areas.
On Nov 11, 2004, melody from Benton, KY (Zone 7a) wrote:
This tree is pretty much known world-wide in temperate zones. The hard, durable wood is used for high quality fence posts, as they do not rot easily.
Young shoots can be poisionous to livestock, but the seeds are eaten by a great number of wildlife. Pheasents and doves to rabbits and deer make use of the seeds.
On Nov 5, 2004, smiln32 from Oklahoma City, OK (Zone 7a) wrote:
May be grown to zone 4, according to some sources. Flowers are fragrant and appear in June. It is happy in nearly any soil conditions. Can grow to a height of 75'.
Regional...
This plant has been said to grow in the following regions:
San Leandro, California Losantville, Indiana Denison, Iowa Benton, Kentucky Calvert City, Kentucky Clermont, Kentucky Georgetown, Kentucky Lexington, Kentucky Louisville, Kentucky Nicholasville, Kentucky Salvisa, Kentucky Temple, Maine Valley Lee, Maryland Saint Cloud, Minnesota Lubbock, Texas Montesano, Washington Falling Waters, West Virginia