How to Prune Firecracker Plant

Russelia equisetiformis

Reviewed by Kiersten Rankel M.S.

Quick Answer

Prune Firecracker Plant in early spring before new growth begins, cutting back the long arching stems by one-third to one-half. Remove any winter-damaged stems to the base and thin the center of the plant to improve airflow. Since it blooms heavily on new growth throughout spring, summer, and fall, a clean prune at the start of the season maximizes the flower show.

When is the best time to prune?

Firecracker Plant is frost-tender, so the safe pruning window depends on when your region's last frost passes, with the earliest opportunity in frost-free areas of the South and Pacific Coast.

Pacific

Feb–Mar

Mountain

Apr–May

Midwest

Apr–May

Northeast

Apr–May

Southeast

Mar–Apr

Stay on top of plant care

Get seasonal reminders for watering and fertilizing — personalized for your plants.

Try Greg Free

Why Should I Prune My Firecracker Plant?

Firecracker Plant produces those bright red tubular flowers on its new, green arching stems. Over time the plant can sprawl to 4-5 feet wide and develop a tangled thatch of old stems in the center. Pruning clears that out and puts the plant's energy into fresh flowering growth.

In early spring, cut back the long arching stems by one-third to one-half, making cuts just above where a healthy bud or shoot is emerging. Any stems that look brown, woody, and dead should come out completely at the base.

Throughout summer you can do light tidying: snip off stem tips that have finished their bloom cycle to encourage another round of flowers. The plant blooms over a very long season, and this kind of deadheading keeps the display going from spring through fall.

Do not prune hard in fall or winter. In areas that get frost, leave the old stems on the plant until spring, as they provide some insulation for the crown.

Know Before You Cut

Difficulty Easy

Max removal 1/3 to 1/2 of stem length in spring

Growth pattern Arching trailing shrub

Tools Pruners or loppers

What Should I Remove?

Cut arching stems back by one-third to one-half in spring

Remove dead or frost-damaged stems at the base

Thin the center to improve airflow

Snip spent stem tips during the season to encourage reblooming

Don't prune hard in fall or winter in frost-prone areas

Don't remove all arching stems at once

Don't prune until after the last frost risk in colder regions

How Do I Prune Step by Step?

Check for frost damage first

After your last frost date, look over the plant. Any stems that are brown, shriveled, or do not bend without snapping are frost-killed. These come out entirely.

Cut frost-damaged stems to the base

Remove dead stems by cutting them at or just above ground level, close to where they emerge from the crown.

Shorten the healthy arching stems

Cut each long healthy stem back by one-third to one-half, making your cut just above an emerging bud or a small side shoot.

Thin the center of the plant

Reach into the middle of the plant and remove a few of the oldest, most congested stems entirely to open up airflow. This also lets light reach new growth emerging from the crown.

Snip stem tips throughout the bloom season

When a section of stem has finished flowering, trim the tip back by a few inches. New flowering shoots will replace it within a few weeks.

Got More Questions?

Can I prune Firecracker Plant in summer?

Light tip pruning and deadheading during summer is fine and will encourage another flush of flowers. A major hard cutback in summer would reduce blooms for several weeks, so save that for spring.

My Firecracker Plant froze back to the ground. Is it dead?

Not necessarily. In zones 9-11 the roots usually survive a light freeze. Cut all dead stems to the ground in spring, water regularly, and wait. New growth often emerges from the crown within a few weeks once the weather warms.

How do I keep my Firecracker Plant from flopping everywhere?

Regular spring pruning back by one-third to one-half keeps the plant more compact and upright. You can also stake a few of the main stems or grow it against a support structure. The arching habit is natural, so some sprawl is expected.

Will pruning my Firecracker Plant reduce the flowers it makes this season?

A spring prune actually increases flowering. Firecracker Plant blooms on new growth, so cutting the stems back prompts more branching, which means more flowering stem tips throughout the season.

Stay on top of plant care

Get seasonal reminders for watering and fertilizing — personalized for your plants.

Try Greg Free

About This Article

Kiersten Rankel M.S.

Botanical Data Lead at Greg · Plant Scientist

About the Author

Kiersten Rankel holds an M.S. in Ecology & Evolutionary Biology from Tulane University. A certified Louisiana Master Naturalist, she has over a decade of experience in science communication, with research spanning corals, cypress trees, marsh grasses, and more. At Greg, she curates species data and verifies care recommendations against botanical research.

See Kiersten Rankel's full background on LinkedIn.

Editorial Process

Pruning guidance verified against Russelia equisetiformis growth data from Greg's botanical database, cross-referenced with USDA hardiness zone data and published horticultural research.

267+ Greg users growing this plant

USDA hardiness zones 9a–11b

Citations:
NC State Extension
Missouri Botanical Garden

More about Firecracker Plant

Annual Benefits Best Pot Bugs Care Outdoors Companion Plants Direct Sunlight Fertilizing Flower Flower Problems Hardiness Zone How to Grow How to Plant Humidity Landscaping Ideas Black Spots on Leaves Brown Spots on Leaves Leaves Curling Leaves Drooping Leaves Dropping Leaves Falling Over Leaves Mushy Yellow Leaves Lifecycle Light Requirements Perennial Pollination Problems Propagating Repotting Root Rot Roots Size Soil Temperature Varieties How Often to Water Weeds What Eats When to Plant Where to Plant Wilting Winter

Grow plants with confidence