Catberry
Ilex mucronata
- Native to:
- Canada, Prince Edward I., United States
R. A. Nonenmacher






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Aquifoliaceae
- Genus:
- Ilex
- Species:
- Ilex mucronata
- USDA Symbol:
- ILMU
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Shrub , Tree
- Height:
- 400 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- may,jun
- Bloom Colors:
- white, green
- Landscaping Shrub:
- Yes
Wildlife Benefits
- Caterpillars:
- ★★☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Keystone Species Ranking
- Caterpillar Keystone:
- ★★★★☆ Butterfly & moth species supported by this genus (NWF)
- Pollen Specialist Bee Keystone:
- ★☆☆☆☆ Native pollen specialist bee species supported by this genus (NWF)
Host Plant for Caterpillars
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
- Deer Resistant:
- Yes
- Fall Color:
- yellow
Soil Requirements
- Soil Type:
- moist, acidic, organic-rich soil
- pH:
- 4.5 - 6.5 (acidic to slightly acidic)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Commonly found in wetlands and bogs
Propagation & Germination
- Stratification:
- Warm then cold/moist stratification (double dormancy) — 150–240 days
- Germination Time:
- 30–90 days
- Notes:
- Seeds exhibit double dormancy requiring warm stratification followed by cold stratification. Germination can take 2-3 years in natural conditions.
The above propagation data sourced from Claude AI
Pre-treatment: Mix an equal amount of seeds with either perlite or vermiculite in a Ziploc-style bag or a small Rubbermaid-style container. Add a small amount of water (no visible water within the bag or container). Place bag in a room temperature setting for at least 2 months followed by cold storage (33-42 degrees F) for at least 2 months. Cold store until planted (up to 3 years).
Establishment: Seed is collected by hand from locally native plants within the eastern central Upper Peninsula. Flowers May-June. Seed is harvested July thru August. No information on germination rate or time range provided.
Source: npn.rngr.net
ORGHPS Germination Guide: Expose to fluctuating outdoor winter temps incl. freezing for 3 months. Increase light/temp in spring.