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Kowhai
Sophora microphylla 'Sun King'

Family: Papilionaceae (pa-pil-ee-uh-NAY-see-ee) (Info)
Genus: Sophora (SOF-or-uh) (Info)
Species: microphylla (my-kro-FIL-uh) (Info)
Cultivar: Sun King
Additional cultivar information:(aka Hilsop)
Registered or introduced: 1997

Category:

Shrubs

Height:

6-8 ft. (1.8-2.4 m)

8-10 ft. (2.4-3 m)

Spacing:

12-15 ft. (3.6-4.7 m)

Hardiness:

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)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Full Sun

Danger:

N/A

Bloom Color:

Bright Yellow

Bloom Time:

Mid Spring

Foliage:

Deciduous

Other details:

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

6.6 to 7.5 (neutral)

Patent Information:

Non-patented

Propagation Methods:

From seed; stratify if sowing indoors

From seed; germinate in a damp paper towel

Seed Collecting:

Collect seedhead/pod when flowers fade; allow to dry

Allow pods to dry on plant; break open to collect seeds

Allow seedheads to dry on plants; remove and collect seeds

Regional

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

Gainesville, Florida

Sanders, Kentucky

Okatie, South Carolina

Memphis, Tennessee

Gardeners' Notes:

3
positives
0
neutrals
0
negatives
RatingContent
Positive

On May 17, 2012, kauri from Auckland
New Zealand wrote:

The Kowhai ( pronounced korfi) is a native tree of New Zealand and considered to be our national flower. Kowhai is a maori word which means yellow, the colour of the flowers. It flowers in the spring giving a beautiful golden display and is a favourite with native birds particularly the Tui, for its nectar. All of the plant is poisonous, especially the seeds
There are 8 species and they grow to about 8m high. Can be grown from seed or tip cuttings.

Positive

On Jan 2, 2010, sladeofsky from Louisville, KY (Zone 6b) wrote:

This cultivar is supposedly hardy to zone 7 and perhaps 6b.

Positive

On May 21, 2006, LawrenceM from Northampton
United Kingdom wrote:

This plant is evergreen where I live in England. Although the outer foliage does get cut back by hard frost it never loses most of its leaves.