Catalpa speciosa
northern catalpa

Notes:

Despite what Dirr says, this species does have one notable advantage over C. bignonioides besides shape/size: no odor when the leaves are crushed.

Robert Kourik, in The Tree and Shrub Finder, writes that it blocks on average 76% of sunlight in leaf and only 32% when bare, which is fairly good but not as good as, say, Liquidambar or Liriodendron.

Legendarily adaptable; found all along the highways in North Jersey and even in some vacant lots in Newark (while others have Paulownia -- it's easy to tell the two apart when in flower), so I have no choice but to give it the "weedy" tag.

Subject to defoliation by catalpa sphinx moth larvae, but for some people that's the entire reason to plant this tree in the first place (as the larvae are an excellent live fishing bait).

Pollen may be allergenic. Flowers smell like honeysuckle or Arabian jasmine.

Can be cut to the ground every year for gigantic, tropical-looking leaves, but this sacrifices flowers. This is the only case that justifies the "use:border" tag. Generally takes severe pruning well, which you might need if you want to keep the shape regular with age.

Sources: UFL, Sunset, Missouri BG, Stoecklein, UConn, Dirr, USDA, Druse.

Tags:

attracts:bees
attracts:larval host
clay tolerant
coarse texture
deer resistant
drought tolerant
easy to grow
exposure:full sun
exposure:part shade
fast-growing
form:tree
habit:irregular
habit:oval
infertile soil tolerant
litter:fruit
litter:leaves
long-lived
native:eastern North America
persistence:deciduous
pollution tolerant
resprouts notably
rich soil preferred
roots:coarse/few
roots:low damage potential
salt tolerant
sandy soil tolerant
showy flowers
type:broadleaf
use:border
use:specimen
use:street
water:moderate to little
water:regular
weedy
wet soil tolerant
wind sensitive


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