Pardanthopsis dichotoma
Iris dichotoma
- Native to:
- China, Korea, Russia
peganum (www.flickr.com),peganum (www.flickr.com) from Small Dole, England,peganum (www.flickr.com) from Small Dole, England,Huron Valley Iris Gardens Burchfield, Sam Henry G. Gilbert Nursery and Seed Trade Catalog Collection,S. S. Berry (Firm) Henry G. Gilbert Nursery and Seed Trade Catalog Collection,S. S. Berry (Firm) Henry G. Gilbert Nursery and Seed Trade Catalog Collection,Southland Iris Garden Giridlian, J. N Henry G. Gilbert Nursery and Seed Trade Catalog Collection
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Iridaceae
- Genus:
- Iris
- Species:
- Iris dichotoma
- USDA Symbol:
- PADI26
Growth Characteristics
- Height:
- 100 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- jul,aug,sep
- Bloom Colors:
- lavender, purple, pink, white
Keystone Species Ranking
- Caterpillar Keystone:
- ★★☆☆☆ Butterfly & moth species supported by this genus (NWF)
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- well-drained, sandy or loamy soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to rocky or sandy slopes
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–90 days
- Germination Time:
- 14–60 days
- Notes:
- Seeds benefit from cold stratification. Germination can be erratic; light may improve germination rates.
The above propagation data sourced from Claude AI
ORGHPS Germination Guide: Sow @ 20°C. Seed germinates within 3 months Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard water and any seeds that remain floating. * rots if too wet; seeds at milk stage rot without germinating; seeds at dough stage can germinate and have rather high germination rate; fully ripe seeds germinate without dormancy. Soak and rinse in clean water daily x 4 weeks