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PlantFiles: Yellow False Acacia, Black Locust, Yellow Locust
Robinia pseudoacacia 'Frisia'

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Family: Papilionaceae (pa-pil-ee-uh-NAY-see-ee) (Info)
Genus: Robinia (roh-BIN-ee-uh) (Info)
Species: pseudoacacia (soo-doh-a-KAY-see-uh) (Info)
Cultivar: Frisia

One vendor has this plant for sale.

2 members have or want this plant for trade.

Category:
Trees

Height:
30-40 ft. (9-12 m)
over 40 ft. (12 m)

Spacing:
20-30 ft. (6-9 m)

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

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There are a total of 20 photos.
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Profile:

4 positives
1 neutral
1 negative

Gardeners' Notes:

RatingAuthorContent
Positive adheesh On Jun 30, 2014, adheesh from Fussa Tokyo
Japan wrote:

grows well in shade , (full sun makes the leafs dark by mid summer.)
I planted in container in full sun the first year.
spectacular here in my Japanese garden ,near a pond with blue hydrangea &, red leaf maple,hakone grass...
Saw blue fir and this tree together here in Tokyo ,- wow !!!

Positive bobbieberecz On Jun 7, 2014, bobbieberecz from Concrete, WA wrote:

So far, positive. I fell hard for this tree when I saw a row of 5 of them swaying gracefully in the wind. The chartreuse leaves gave a glow to the otherwise-green surroundings. I had read of the suckering and I'll admit it put me off. I've planted my own row of 4 trees and am still keeping an eye out for suckering 5 years later. I've seen neighbors with enormous trees and have been told there is occasional suckering but if sliced off AT the root they don't recur for the rest of the year. Some trees, the nursery tells me, have an over-active hormone near the end of the roots which causes the suckering. They confirm cutting the sprout off at the root level, leaving NO sprout will keep it at bay. I've seen yards and fields left unkempt in the area and young trees are forming groves. If this becomes a problem, out they come and start the round-up treatment for suckers. My heart will be broken because they are a sight for sore eyes in my Washington state home where we are engulfed in dark evergreens and big leaf maples. They survive in drought but I've been told stressful conditions can encourage suckering in an effort to keep the species going, so I do water in the hot part of summer. For now I'm enjoying the graceful beauty of those waving branches across the pond showing their spectacular color amongst the evergreens with the towering mountains behind them. Lovely just.

Neutral coriaceous On Mar 9, 2014, coriaceous from ROSLINDALE, MA wrote:

This cultivar differs from the species in the bright golden to chartreuse color of the foliage. It's also said to have reduced flowering. Plants in commerce are grafted on seed-grown black locust, so the root suckers will not have golden foliage.

The species is a thorny ornamental tree with beautiful, highly fragrant flowers in late May/early June. Long popular in Europe, here in the northeastern US it's all too often afflicted by leaf miner (which ruins the foliage) and locust borer. The prolific root suckering can be problematic in gardens. All parts are poisonous except the flowers.

This species is not considered invasive in the southwestern US, where it can make a fast-growing, moderately xeric landscape tree. It should be pruned to a single leader when young to reduce its proneness to wind damage. There are cultivars with few thorns and better flowering.

In eastern and midwestern North America, where it's planted outside its native range it can invade natural areas, especially open scrub-pine/oak forests on sunny upland sites with sandy soil. It forms clonal colonies that can spread by root suckering 3-10' per year. Not native to New England.

It is illegal to trade, transport, buy, sell, or plant this species in Massachusetts. It's also on the Connecticut state invasive plant list.

Negative distantkin 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."

Positive saya On Aug 5, 2003, saya from Heerlen
Netherlands (Zone 8b) wrote:

Beautifull tree! Nice scented when it's blooming and lots and lots of bees. Spent flowers make a lot of mess though.

Positive philomel On Oct 10, 2002, philomel from Castelnau RB Pyrenes
France (Zone 8a) wrote:

A fast growing tree with spines. It sometimes produces suckers. In June racemes of white, scented flowers hang from the branches. However this cultivar is grown for its outstanding lime yellow leaves. They are among the latest to appear in the spring, but contrast wonderfully with the dark wood of the branches and give a magnificent display through to the autumn, when they take on warmer golden hues before falling.

Regional...

This plant has been said to grow in the following regions:

Ainažu Lauku Teritorija,
, Alaska
Anderson, California
Canoga Park, California
Lake Nacimiento, California
San Leandro, California
Sebastopol, California
Denver, Colorado
Barnesville, Georgia
Benton, Kentucky
Salvisa, Kentucky
Lafayette, Louisiana
Valley Lee, Maryland
Roslindale, Massachusetts
Tyngsboro, Massachusetts
Bellaire, Michigan
Inver Grove Heights, Minnesota
Saint Cloud, Minnesota
South Saint Paul, Minnesota
Panama, New York
Gates Mills, Ohio
Beaverton, Oregon
Gresham, Oregon
Mount Angel, Oregon
Moosic, Pennsylvania
Pittsburgh, Pennsylvania
Lubbock, Texas
San Antonio, Texas
Alexandria, Virginia
Chinook, Washington
Concrete, Washington
Port Angeles, Washington
Tacoma, Washington
Cambridge, Wisconsin
Elmwood, Wisconsin



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