Annuals
Pelargonium Regal Group
Martha Washington / regal geranium
Large, often ruffled flowers carry rich colors and contrasting markings. Regal geraniums make striking flowering pots for a bright, sheltered position. They favor cooler conditions than ordinary bedding geraniums and benefit from protection from hot afternoon sun.
At a glance
- Sun
- Part shade; bright light indoors
- Mature size
- About 4–20 in. (regal reference) tall × About 4–20 in. (regal reference) wide
- Water
- Moderate; let the mix dry slightly between waterings
- Bloom
- Main display in cooler spring weather
- Life cycle
- Frost-tender seasonal plant locally
Sizes & prices
- 3.5"$5.99
- 6"$11.99
- 10"$49.99
- 4.5″$9.99
Catalog updated September 8, 2026. This is not a live stock count; please call to confirm availability and price.
Ask about this plantSelect a section to expand.
Resistance & tolerances
- Drought
- Some tolerance, but regular moisture supports flowering.
- Wet soil
- Avoid waterlogged soil and standing water.
Pet safety
- Cats & dogs
- Toxic if eaten. Keep plants and trimmings out of reach.
If a pet eats a potentially toxic plant, contact your veterinarian promptly.
Growing & care
- Soil & drainage
- Use freely draining garden soil or a container with drainage holes.
- Pruning
- Remove faded flowers and pinch growing tips for a compact plant.
- Winter
- Bring into bright, frost-free shelter before freezing weather.
- Feeding
- Feed flowering plants according to fertilizer label directions.
- Size & habit
- Mature size varies by cultivar.
Sources & photo credits
Photo: Shelagh Fritz · Public domain
Size & selection: Regal geranium cultivars differ; these are RHS reference dimensions, not the diameter of the sale pot.
Reviewed September 22, 2026. Growing conditions vary by location.