Pet Safe
moderate Care
alum root
Heuchera richardsonii
Alum root (Heuchera richardsonii) is an evergreen perennial native to the western United States. It features a rosette of lobed basal foliage in shades of green, maroon, purple, or bronze. The tiny, bell-shaped, creamy-white flowers are borne on long, slender stems above the foliage mound. The flowers typically bloom in mid- to late spring. Alum root prefers a bright location and acidic soil. Pruning is typically not necessary with this hardy plant, but it will benefit from deadheading if desired. It is drought and deer tolerant and makes a great choice for a xeriscape garden!
Sunlight
Partial Shade
Water Needs
low
USDA Hardiness Zones
Zone 3Zone 4Zone 5Zone 6Zone 7Zone 8Zone 9
Hardiness Map
Green areas show climates worldwide where this plant can grow.
Zone 3Zone 4Zone 5Zone 6Zone 7Zone 8Zone 9
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Water Every
"7-10" days
Sun Needs
partial-shade
Growth
Low
Care Level
Low
Watering Schedule
Frequency
Day 1"7-10" daysDay NaN
💧 Water every "7-10" days
Seasonal Adjustments
Adjust watering frequency based on temperature, humidity, and season. Water more frequently in summer and less in winter.
Pro Tip: Check soil moisture before watering. Stick your finger 1-2 inches into the soil—if it's dry, it's time to water!
Season
Fall
Sep Oct Nov
Winter
Dec Jan Feb
Spring
Mar Apr May
Summer
Jun Jul Aug
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Pruning Time
How to Propagate
Division
Divide root ball in spring, replant sections immediately
Cutting
Take 4-6" cuttings in spring, root in water or moist soil
Seed Propagation
Start seeds indoors 6-8 weeks before last frost date
Layering Propagation
Bend stem to soil surface, cover lightly, roots form in 4-6 weeks
Plant Characteristics
Drought Tolerant
Is This Plant Right for You?
Good For:
- •Forgetful waterers
- •Homes with pets
- •Low-maintenance gardens
Consider Carefully:
- •Indoor growing
Bloom Seasons
Care Tips
Light Requirements
Enjoys dappled or limited direct sun—about 2–4 hours of morning or late afternoon light and protection during peak midday sun.
Watering
Allow soil to dry out between waterings. Overwatering can cause root rot.