Dwarf Southern Catalpa 'Nana'

Catalpabignonioides

Family
Bignoniaceae (big-no-nih-AY-see-ee)
Genus
Catalpa (kuh-TAL-puh)
Species
bignonioides (big-non-YOY-deez)
Synonym
Catalpa bignonioides var. nana
Sun Exposure
Full Sun
Foliage
Grown for foliage
Deciduous
Height
10-12 ft. (3-3.6 m)
12-15 ft. (3.6-4.7 m)
Spacing
8-10 ft. (2.4-3 m)
10-12 ft. (3-3.6 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)
Danger
Parts of plant are poisonous if ingested
Bloom Color
White/Near White
Bloom Time
Mid Spring
Late Spring/Early Summer
Other Details
Category
Trees
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Bloom Size
Other details
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information
Non-patented
Propagation Methods
From semi-hardwood cuttings
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; direct sow after last frost
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Clifton, Colorado

Reno, Nevada

Farmersville, Ohio

Portland, Oregon

Bainbridge Island, Washington

Spokane, Washington

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Gardener's Notes:

2
positives
2
neutrals
0
negative
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R
Farmersville, OH | August 2023 | positive

I've been growing several of these at our place in Farmersville, OH for several years. I cut them back hard in early spring or late winte...Read More

Q
Portland, OR | September 2014 | neutral

i have been looking for a dwarf nana catalpa for years after seeing them at a park in my neighborhood. i live in portland oregon and they...Read More

M
Lehi, UT | August 2011 | positive

For anyone who is looking for information on this type of tree, I can hopefully give a little bit of information. The dwarf Catalpa or "u...Read More

A
A
| May 2005 | neutral

A beautifully shaped tree. Sadly this tree has succumbed from root rot.

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