Protea Species, Giant Protea, King Protea

Protea cynaroides

Family
Proteaceae (pro-tee-AY-see-ee)
Genus
Protea (PROH-tee-uh)
Species
cynaroides (sin-ar-OY-deez)
Synonym
Leucadendron cynaroides
Protea cyclophylla
Protea cynaroides f. cyclophylla
Protea cynaroides f. eriolepis
Other Details
Water Requirements
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
Patent Information
Propagation Methods
Seed Collecting
Regional

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

Alicia, Arkansas

Aliso Viejo, California

Hayward, California

Hidden Meadows, California

Manhattan Beach, California

Mission Viejo, California

San Leandro, California

Vista, California(9 reports)

Boca Raton, Florida

New Port Richey, Florida

Vero Beach, Florida

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Gardener's Notes:

3
positives
5
neutrals
0
negative
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A
A
Monroe, WI (Zone 4b) | December 2017 | neutral

I have no experience, but I do have a question about them..........since I'm zone 5a, how would these plants tolerate my summers outside ...Read More

M
| September 2017 | positive

It is a lovely flower, but grows into quite a huge bush and therefore requires a lot of space, and also it hates transplantation or chang...Read More

S
(Zone 10a) | June 2017 | positive

Needs regular watering for the first 2 years (particularly the summers) for establishment.

K
Alicia, AR | February 2017 | neutral

When I lived in Northern California I used to grow these at my house in Oroville.. Very pretty..

I now live in NEA..Northe...Read More

B
Hayward, CA | December 2015 | neutral

I'm growing it and its not nearly as dry tolerant as I expected. After a year it still needs summer watering.
2017:I've also since...Read More

R
(Zone 1) | October 2013 | positive

King Protea - the national flower of South Africa - is a woody shrub with thick stems and large dark green, glossy leaves, and has the la...Read More

H
H
San Antonio, TX (Zone 8b) | October 2007 | neutral

I have not grown this plant.

The king protea is the national flower of South Africa and is commercially grown in Australia...Read More

K
K
San Leandro, CA (Zone 9b) | October 2006 | neutral

Protea cynaroides have flower heads that have the flowers in the center with colorful bracts surrounding them. The flowerheads vary in s...Read More

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