I picked up some seeds from a seed swap recently and would like some
information on growing from seed. Has anyone had sucess growing them from
seed. I am in zone 5b.
According to Dirr:
" Seed should be scarified in sulfuric acid for 15 to 30 minutes... Seeds of
LABURNUM contain an alkaloid called cytisine, which can be fatal to
children and adults. This compound is contained in all parts of the plant.
Supposedly, one small seed can prove toxic to a small child. Extreme care
should be exercised when using this plant in a public area."
David J. Bockman, Fairfax, VA (USDA Hardiness Zone 7)
I already know about the poison part. So feeding my neighbor (not a nice
one) a beatiful tea of unknown origins is out?
I read to soak the seeds for 24 hours but nothing about sulfuric acid. Where
would they get that in the wild?
How about ideal place to plant. I understand they like a cooler area to
grow. Would morning and noon sun but not afternoon be best?
Again, I will defer to Dirr as I have no direct experience with this tree:
"Transplant balled-and-burlapped or container-grown in spring as a small
tree into moist, well-drained soil; the plant is adaptable to many
situations but prefers light shade in the hot part of the day; will not
withstand standing water; also cold injury can be a problem; withstands
high pH conditions; prune after flowering; should be looked upon as a
short-lived tree in the Midwest and probably East; not at all heat
tolerant, possibly excessively high night temperatures, and therefore not
suitable for the South, although a tree in Spartanburg, SC persists;
several newly planted trees in the Milliken Arboretum have died and the
remaining plant persists by a thread.... Good in the shrub border, near
buildings, corners of houses; plant in a protected spot; very effective
when grouped in three's and five's; makes a tremendous show in flower;
truly a beautiful plant in flower and the German popular name, Goldregen
(Golden Rain), is most appropriate; widely planted in Europe but not so
common in the United States; at Bodnant Gardens, Wales, there is the famous
"Laburnum Arch" with the plants trained across a structure about 50 to 75
yards long; the flowers cascade and the visitors can walk through this
feature; my visit coincided with full flower and the effect was just
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