Grow cuphea in full sun and moist soil that drains. Cigar plant is the usual orange tube. It is not Mexican heather (Cuphea hyssopifolia), and not Russelia — the Florida firecracker vine.
Full sun, moist drain, and heat
| Factor | Recommended | Avoid |
|---|---|---|
| Light | Full sun; light afternoon shade in extreme heat | Deep shade (leafy, few tubes) |
| Soil | Moist, well-drained loam or a potting mix that drains | A puddle at the crown, or bone-dry mix all week |
| Heat | Warm nights; bloom ramps in summer | A cold wet April set-out |
| Frost | Annual outside mild winters, or lift before a freeze | Leaving stubs as if they were hardy shrubs |
North Carolina Extension: in very hot climates, light afternoon shade helps if the soil stays moist. Full sun still gives the densest bloom.
Does Cuphea need full sun?
Full sun for the most tubes. Deep shade means leafy plants and few flowers. Afternoon shade is for extreme heat, not a dim courtyard.
How to plant Cuphea
University of Florida Extension: wait until nights stay mild and the soil has warmed.
- Plant after frost risk has passed and the soil has warmed.
- Choose full sun, or morning sun with afternoon shade in extreme heat.
- Set the crown at the old nursery line. Do not bury the stems.
- Water to settle. Keep the mix evenly moist while roots take hold, then let the top dry a little between soaks.
- Pinch young tips once or twice so the plant branches.
- If you start from seed, press it on the surface — it needs light. Start 10–12 weeks before your last frost. Named packs may not come true.
When should I plant Cuphea outside?
After nights stay mild and frost risk has passed. Cold wet soil stalls growth.
Pinch, frost, and overwinter
University of Wisconsin Horticulture: many kinds are self-cleaning. Shear if stems get leggy. Overwinter in a bright, cool room and cut back on water.
Pinch
Pinch young tips after planting. Skip daily deadheading. A midseason shear tightens a plant that stretched in heat.
Frost
A light frost blackens tops. A hard freeze ends the outdoor season. Treat it as a summer annual unless winters stay mild.
Overwinter
- Pot before frost. Cut back lightly.
- Give a bright, cool room — about the 60s °F — with several hours of sun.
- Water less. Soft growth in a dim, wet pot is the usual indoor fail.
- Or take late-summer tip cuttings and root them under cover.
Is Cuphea an annual or a perennial?
A frost-tender perennial treated as an annual where winters freeze. In mild winters it can return if you protect it.
Do I need to deadhead Cuphea?
Usually no. Many kinds drop spent tubes on their own. Pinch or shear if stems go leggy.
Can I overwinter Cuphea indoors?
Yes. Pot before frost, give bright cool light, and water less. Or root late-summer cuttings.
Kinds, pots, partners, and what fails
Kinds
- Cigar plant — cigar plant and ‘Starfire Pink’: slim tubes. Classic orange with a dark tip, or pink. Heat, sun, frost plan.
- Large firecracker — ‘David Verity’ and ‘Vermillionaire’: bigger wands for a hummingbird bed. Same sun and frost plan, not extra winter hardiness.
- Bat-faced — bat-faced cuphea: purple face with red “ears.” Same heat and frost plan, different flower.
What is the difference between bat-face and cigar Cuphea?
Cigar plant is a slim tube, often orange with a dark tip. Bat-face has a purple face with two red ears. Same sun and frost plan.
Is Mexican heather the same as cigar plant?
No. Mexican heather is usually Cuphea hyssopifolia — a small shrubby look, not the cigar, firecracker, or bat-face kinds named here.
Pots
- A pot with holes, in full sun.
- A mix that stays moist and still drains. Empty the saucer.
- Daily soaks in peak heat on a west exposure are normal. Do not leave standing water.
How often should I water Cuphea in pots?
When the top of the mix dries — often daily in peak heat. Empty the saucer.
Partners
Pair with other full-sun summer plants that take the same water — salvia, zinnia, pentas. Do not share a wet bed with bog plants, or a bone-dry succulent tray.
What fails
- Deep shade.
- A cold wet April plant-out.
- A puddle at the crown.
- Leaving frost-killed stubs as a hardy shrub.
- Calling Russelia a Cuphea firecracker.
Pinch once after planting. Lift favorites before a freeze, or buy fresh in spring.
FAQ
Does Cuphea attract hummingbirds?
Yes. The tubular blooms are a summer nectar stop when the plant is in sun and in flower.
Why is my Cuphea not flowering?
Usually too little sun, planted too cold, or a heavy nitrogen feed. Move it into heat and ease rich fertilizer.
Is firecracker plant the same as Cuphea?
Sometimes the tag means a large Cuphea. In Florida it often means Russelia, a different plant. Read the Latin.
Recommended plants
More first-season notes by plant are gathered in How to Grow Guides.
Updated: Reviewed by Bosquelle Editors