At a Glance

Height24-36 inches (60-90 cm)
Width24-36 inches (60-90 cm)
Maturity2 years

Growing Zones

USDA Hardiness Zones

7 - 9
These zones indicate the coldest temperatures this plant can typically survive.
What's my zone? →
Frost Tolerancehardy

Overview

Salvia microphylla 'Hot Lips' is Hot Lips baby sage, a semi-woody semi-evergreen subshrub growing 24-36 inches (60-90 cm) tall and wide. Bicolor tubular two-lipped flowers 0.75-1 inch (2-2.5 cm) with a bright red upper lip and white lower lip from late spring through fall (May-October). The flower color is temperature-sensitive: all-white below 60°F (16°C), all-red in high heat, and the classic red-and-white bicolor at 65-75°F (18-24°C). In cool-summer climates, the classic bicolor displays for most of the season. Small oval to rounded dark green strongly aromatic slightly sticky leaves 0.5-1.25 inches (1.5-3 cm) on semi-woody stems — the foliage has a fruity-sage scent. In the mint family (Lamiaceae). The species name 'microphylla' means 'small-leaved' (Greek mikros + phyllon). Hummingbird-visited. Shear by one-half to two-thirds in early spring (annual cutback). Intolerant of wet heavy winter soil — crown rot in poorly drained conditions. In zone 7, plant against a warm south- or west-facing wall. Native to the Sierra Madre Occidental of Mexico and southeastern Arizona, growing in oak woodlands and canyon scrub at 4,500-8,000 feet (1,400-2,400 m). Non-toxic. Deer-resistant (aromatic). Drought-tolerant once established. Full sun. Zones 7-9. Growth rate is moderate to fast.

Native Range

The species S. microphylla is native to the Sierra Madre Occidental of Mexico (Chihuahua, Sonora, Jalisco, Oaxaca) and southeastern Arizona, growing in oak woodlands and canyon scrub at 4,500-8,000 feet (1,400-2,400 m).

Suggested Uses

Planted in borders, rock gardens, hummingbird gardens, and containers of at least 5 gallons (19 L) in zones 7-9. The temperature-sensitive bicolor red-and-white flowers display the classic pattern in cool-summer climates. Lean soil. Hummingbird-visited. Non-toxic. Deer-resistant. Native.

How to Identify

Identified by bicolor tubular flowers with a bright red upper lip and white lower lip on a semi-woody subshrub with small aromatic slightly sticky leaves. The temperature-sensitive bicolor (all-white in cool, all-red in heat, red-and-white at moderate temps) is the cultivar identifier. Distinguished from S. greggii by the slightly larger leaves and the bicolor pattern. In Lamiaceae. Native.

Appearance

Size & Dimensions

Height2' - 3'
Width/Spread2' - 3'

Reaches mature size in approximately 2 years

Colors

Flower Colors

Foliage Colors

Fall Foliage Colors

Bloom Information

Bloom Period

~24 weeks
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Late spring to fall (May-October), lasting up to 24 weeks. Bicolor red-and-white tubular flowers (temperature-sensitive). Hummingbird-visited. Shear in early spring. Optional midsummer shear for fall flush.

Detailed Descriptions

Flower Description

Bicolor: bright red upper lip and white lower lip; temperature-sensitive — all-white below 60 degrees F (16 degrees C), all-red in high heat, classic bicolor at 65-75 degrees F (18-24 degrees C); tubular two-lipped, 0.75-1 inch (2-2.5 cm)

Foliage Description

Small, oval to rounded, dark green, strongly aromatic, slightly sticky, 0.5-1.25 inches (1.5-3 cm); semi-woody stems

Growing Conditions

Sun Requirements

Requires 6-10 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight

Soil Requirements

pH Range6.0 - 7.5(Neutral)
357912
Soil Types
Drainagewell drained

Water & Climate

Water Needs

Low

Frost Tolerance

hardy

Time to Maturity

1-2 years

Drought Tolerance

Drought tolerant when established

Care & Maintenance

Care Guide

Full sun. Lean sharply drained soil pH 6.0-7.5. Intolerant of wet winter soil (crown rot). Shear by one-half to two-thirds in early spring. In zone 7, plant against a warm wall. Temperature-sensitive bicolor. Hummingbird-visited. Non-toxic. Deer-resistant. Drought-tolerant. Zones 7-9.

Pruning

Shear all stems by one-half to two-thirds in early spring (March-April) before new growth. Optional light midsummer shear for compact form and stronger fall bicolor flush. Remove winter-killed stems. The plant resprouts from semi-woody stems or the root crown.

Pruning Schedule

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early spring

Maintenance Level

low

Container Growing

✓ Suitable for container growing

Minimum container size: 5 gallons

⚠️ Toxicity Warning

Non-toxic