Photo by Melody

PlantFiles: Holttum's staghorn
Platycerium holttumii

Family: Polypodiaceae
Genus: Platycerium (plat-ee-SIR-ee-um) (Info)
Species: holttumii (holt-UM-ee-eye) (Info)

Tropicals and Tender Perennials

4-6 ft. (1.2-1.8 m)

4-6 ft. (1.2-1.8 m)

USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Sun to Partial Shade
Light Shade


Bloom Color:

Bloom Time:

Grown for foliage

Other details:
This plant is suitable for growing indoors
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Suitable for growing in containers

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

Patent Information:
Unknown - Tell us

Propagation Methods:
From spores

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Click thumbnail
to view:

By chanin
Thumbnail #1 of Platycerium holttumii by chanin

By chanin
Thumbnail #2 of Platycerium holttumii by chanin

By palmbob
Thumbnail #3 of Platycerium holttumii by palmbob


1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive chanin On Apr 19, 2006, chanin from Bangkok
Thailand wrote:

Beyond the biggest Queen Elkhorn : Platycerium wandae and another solitaly species such as P.superbum and P.grande, this Holttum's staghorn is also a giant staghorn in the tropical world.

There are 4 species of staghorn native to my tropical country, Thailand. They are P.coronarium, P.ridleyi, P.wallichii and this P.holttumii.

P.coronarium and P.holttumii seem to grow more easy than another two. The plant in the picture is about 7 years old with 2.5 feet of upright crown fronds and 3.5 feet of pendant fertile fronds. I mount the plant on a column of my lath house because I can't hang it like other small epiphytes. It receive a half day 50% sunlight from the morning and 2-3 times per week watering with a high potassium (K) fertilizer once a month.


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

Naples, Florida
Sarasota, Florida
Tampa, Florida

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