How to Grow Red Salvia
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Red Salvia
Salvia splendens
flowerRed Salvia is a vibrant tender perennial shrub prized for its brilliant scarlet-red tubular flowers that bloom continuously throughout the growing season. Native to Brazil, it's typically grown as an annual in temperate climates and makes an excellent choice for borders, containers, and pollinator gardens. Its tall flower spikes and long blooming period make it a garden staple for adding bold color and attracting hummingbirds and butterflies.
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Example Red Salvia timeline · Pittsburgh, PA (Zone 6b)
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Plant Red Salvia
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Red Salvia blooms
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Red Salvia dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Zones 10-11 year-round; grown as tender annual or greenhouse plant in zones 2-9
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Seedling
2-3 weeksTiny cotyledons emerge followed by first true leaves. Plant is delicate and low-growing.
Keep soil evenly moist. Provide bright light to prevent leggy growth. Maintain warmth (70-75°F).
Vegetative Growth
4-6 weeksPlant develops sturdy stems and narrow lance-shaped green foliage. Height increases rapidly.
Pinch back growing tips when plant is 3-4 inches tall to encourage branching. Fertilize bi-weekly with balanced fertilizer.
Bud Formation
2-3 weeksFlower spikes begin to elongate at stem tips. Buds are visible but not yet opened.
Maintain consistent moisture and feeding. Ensure full sun exposure for best flower development.
Flowering
8-12 weeks (or longer with deadheading)Vibrant scarlet-red tubular flowers open along elongated spikes. Blooms appear continuously.
Deadhead spent flower spikes to encourage continuous blooming. Keep soil moist. Feed every 2-3 weeks with bloom-promoting fertilizer.
Post-Season
VariesBlooming may slow in fall/winter. Plant can be cut back and overwintered indoors in cool climates.
Reduce watering and feeding in dormancy. Cut back in spring before new growth. Overwintering indoors requires bright light and cool conditions (50-60°F).
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with water to dislodge; use neem oil or insecticidal soap. Increase humidity.
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Yellow sticky traps; spray with insecticidal soap or neem oil. Remove heavily infested leaves.
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Improve air circulation; apply sulfur or potassium bicarbonate fungicide. Remove infected leaves.
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Hand-pick; use copper barriers or diatomaceous earth. Beer traps work effectively.
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Spray with neem oil or insecticidal soap. Remove with alcohol-dipped cotton swab on small infestations.
Uses
Garden Color and Hummingbird Attraction
OrnamentalRed Salvia's brilliant scarlet flowers are a magnet for hummingbirds, butterflies, and other pollinators. The bright color and long blooming season make it invaluable for adding vibrant color to borders, beds, containers, and cottage gardens from summer through frost. [source]
Edible Flowers
CulinaryThe tubular flowers are edible and can be used as a garnish for salads, desserts, and cocktails. They have a slightly sweet, mild flavor that adds both visual appeal and subtle taste to culinary dishes. [source]
Traditional Herbal Use
MedicinalSalvia splendens has been used in traditional Brazilian and indigenous medicine as a tea for its potential anti-inflammatory and antioxidant properties, though scientific validation is limited. [source]
Dried Flower Arrangements
CraftThe sturdy flower spikes dry well and retain much of their color, making them ideal for dried flower arrangements, pressed flowers, and botanical crafts. [source]
Native Pollinator Support
WildlifeBeyond hummingbirds, Red Salvia supports a diverse range of beneficial insects including butterflies, bees, and moths. It's an excellent nectar source during summer and early fall when other flowers may be scarce. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Red Salvia is grown for ornamental flowers rather than harvest. Deadhead spent flower spikes regularly by pinching or cutting just below the spent blooms to encourage continuous flowering throughout the season. This promotes bushier growth and extends the blooming period.
Fun Facts
- 🌱 Red Salvia is native to the Brazilian highlands and was popularized in Victorian-era ornamental gardens during the 19th century as a prized bedding plant.
- 🌱 The flower's tubular shape is specifically adapted for hummingbird pollination—the bird's long beak and quick metabolism make it the perfect pollinator for this high-nectar flower.
- 🌱 The name 'Salvia' comes from the Latin word 'salvus,' meaning 'to save' or 'to heal,' reflecting the genus's long history of medicinal use across many cultures.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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