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Scarlet Sage Flowers

Standard · Lamiaceae

Scarlet sage is a fast-growing tender perennial usually grown as a warm-season annual outside Zones 8-10. It carries upright spikes of tubular scarlet flowers that draw hummingbirds, butterflies, and bees over a long bloom season. Plants typically reach 1 to 3 feet tall with softly hairy foliage and often reseed lightly in favorable sites. Key facts: 65–85 days to maturity, 6+ hours of sun, 12–18 " spacing. Container-friendly (minimum 3-gallon pot).

Updated April 19, 2026 · Backed by 3 cited sources
Overview

At a Glance

The essentials first: timing, light, spacing, seed-starting, container fit, and overall size.

Days to maturity
65–85 days
Sun
6+ hours
Full Sun To Light Part Shade, 6 8+ Hours
Spacing
12–18 "
between plants
Seed start
4–6 weeks
before transplant
Container
Yes
3+ gallon pot
Height
1–3 ft
at maturity
Planting window

Zone Planting Guide

Switch zones to see whether this plant is a strong fit, what frost timing looks like, and any extra notes worth planning around.

This card updates instantly with viability, frost timing, and any planting notes for your selected zone.

Resilience

Plant Health

Stress tolerance, resistance notes, and the most common problems to watch for as plants mature.

Tolerance
Heat: High Cold: Low Drought: Moderate

Common Issues

Self Seeding

Cause: Spent flower spikes can mature seed freely in mild climates.

Prevention: Deadhead regularly if volunteer seedlings are unwanted.

Cool Weather Stall

Cause: Plants pause when soil and nights stay cool.

Prevention: Wait for warm soil before planting out and avoid overwatering in cool spells.

Feeding & picking

Nutrition & Harvest

How hungry the plant is, what ripe harvest looks like, and how long the crop keeps after picking.

Feeding
Nutrition
Feeding intensityLight feeder
RecipesWorm Castings Topdress, Compost Tea
Timing
Harvest

Cut stems when the first third of the flower spike is open and the rest of the buds are colored.

Expected yield0.05–0.2 lbs/plant
Storage5 days — Fresh cut stems are best used quickly in clean water.
Plant relationships

Companion Planting

Helpful neighbors can support growth or deter pests. Keep antagonistic plants separated to reduce stress and competition.

Avoid planting near
Herb Fennel
What you'll need

Growing Supplies

Based on Scarlet Sage's growth profile -- recommendations matched to this variety's specific requirements.

Drip irrigation / soaker hose kit

Every gardener benefits from putting water at the root zone instead of on the leaves, because drip and soaker systems reduce foliar disease pressure by limiting leaf wetness and soil splash. A quality kit should include a backflow preventer, filter, pressure reducer, and UV-resistant tubing.

Source: Iowa State University Extension; Colorado State University Extension; UMass Extension

Soil test kit

A soil test gives a baseline for pH and nutrient status so gardeners can add only what the soil actually needs. Prioritize a mail-in or lab-affiliated kit whenever possible because extension guidance notes that laboratory testing is more accurate than instant readers.

Source: University of Maryland Extension; Purdue Extension; Montana State University Extension

Quality bypass pruners

Extension guidance favors bypass designs because they make cleaner, closer cuts on living tissue than anvil types. Look for hardened steel blades that can be sharpened, a comfortable grip, and a cutting capacity matched to real home-garden stems.

Source: University of New Hampshire Extension; Iowa State University Extension; Purdue University Extension

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Research

Sources

Reference material and extension guidance used to build this growing guide.

seed_catalog Seeds Nowuniversity Wisconsin Horticulture / NC State Salvia coccinea referencesreference South Carolina Native Plant Society
Internal links

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