Carpenter's Square
Scrophularia marilandica
- Native to:
- Canada, United States, Virgin Islands
Fritzflohrreynolds
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Scrophulariaceae
- Genus:
- Scrophularia
- Species:
- Scrophularia marilandica
- USDA Symbol:
- SCMA2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb , Subshrub
- Height:
- 300 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug,sep
- Bloom Colors:
- greenish-yellow, maroon
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
Baltimore checkerspot (Euphydryas phaeton)
Reported Fauna Sightings
Bees: Common eastern (Bombus impatiens)
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies, birds
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds benefit from cold stratification for 4-8 weeks; surface sow on moist medium and keep warm after stratification.
Where to Buy
Nationwide Seller
- Native Plants Nursery (nursery)
- Prairie Moon Nursery (nursery and seeds)