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PlantFiles: Huilmo Rosado (Pink Huilmo)
Olsynium scirpoideum

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Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Olsynium (ol-SYN-ee-um) (Info)
Species: scirpoideum (sir-POI-dee-um) (Info)

Category:
Alpines and Rock Gardens
Bulbs
Perennials

Height:
6-12 in. (15-30 cm)

Spacing:
6-9 in. (15-22 cm)

Hardiness:
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)

Sun Exposure:
Full Sun

Danger:
Unknown - Tell us

Bloom Color:
Pale Pink
Pink
Rose/Mauve

Bloom Time:
Mid Spring
Late Spring/Early Summer
Mid Summer

Foliage:
Herbaceous

Other details:
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Suitable for growing in containers

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Non-patented

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored

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to view:

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Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive Ursula On Jun 2, 2007, Ursula from Santiago
Chile (Zone 9b) wrote:

The natural habitat of O. scirpoideum is on sunny, rocky slopes at altitudes that range from 60 to 2500m above sea level. These pretty Iridaceae develop a rhizome and can bloom the first year grown from seeds, but will display their best from the second year on. Lots of light and good drainage are a must. Deadhead the flowers and only keep the seed pods you will require for further increasing your Olsyniums. This will prevent the rhizome to age too soon.

Propagation from seeds: during autumn, in a mix of equal parts of compost, regular garden soil and sharp river sand. Cover this mix with a layer of sand, distribute the seeds and spread some more sand over them to barely cover the seeds. Place your sowing pan in a cold frame or cold greenhouse if you have heavy rain in your area. If you have snow, place the sowing pan outdoors and let nature do its work. The seedlings can be transplanted once they are 5cm (2) tall. Do not over water!

Olsyniums are great rock garden plants, as well as adequate for the front of a border or to be grown in pots.



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