Cuphea hyssopifolia

Growing in Pots, Balconies & Indoors

False heather is a neat, ever-blooming little shrub that is a superb pot plant for a sunny balcony or patio – and a bright, sunny window can keep it going indoors. The grower notes it is not a true room houseplant, but it is more indoor-tolerant than most in this group and overwinters well under cover.

Quick Details

• Container Size: About 10-20 L (3-5 gal) for a mature little shrub
• Indoor Suitability: Not a deep-room houseplant, but happy on a bright, sunny sill; a good tender plant to overwinter indoors
• Best Spot: Full sun to light shade; the brightest spot keeps it flowering
• Soil & Drainage: Keep the mix evenly moist through the growing season; it likes steady moisture but must drain freely
• Watering in Pots: Houseplant limits: Not a true room houseplant, but more forgiving than most here – it flowers on a very bright, sunny sill. Windowsill growing: A sunny window keeps this compact shrub blooming; give it the brightest light you can indoors. Overwintering indoors: Being tender, it is well suited to a pot – move it into a bright, frost-free room over winter and back out once frost has passed.

Indoors & On the Windowsill

• Light, heat & wind: Give it the sunniest spot you can. Walls, railings and paving reflect heat, so pots dry quickly – check moisture daily in warm weather, and shelter tall growth from wind.

On a Balcony or Patio

• Pot & drainage: A 10-20 L pot with strong drainage holes; skip a standing water saucer to avoid root rot. Terracotta breathes and dries fast; glazed or plastic holds moisture longer.
• Potting mix: Use a well-aerated, organic-rich mix – peat or coir blended with perlite or vermiculite for free drainage.
• Feeding: Potted plants lose nutrients as watering leaches them from the mix, so feed more often than in open ground – a balanced liquid feed through the growing season.
• Repotting: Refresh the mix or pot up about every two years; a light trim keeps it neat and free-flowering.

Choosing the Pot, Soil & Long-Term Care

Bloom & Flower Guide

Quick Details

• Bloom Season: Spring through autumn, and nearly year-round in frost-free climates
• Time to First Bloom: Blooms young, often within its first season
• Flower Appearance: Tiny six-petalled, star-shaped flowers in white, pink or purple
• Edibility: Grown as an ornamental; not eaten

Detailed Blooming Overview

False heather (also called Mexican heather, Cuphea hyssopifolia) is a compact evergreen shrub that stays smothered in tiny flowers over a very long season. Its dainty blooms are a magnet for small pollinators.

Flower Characteristics

• Small six-petalled flowers in a star shape, in white, pink or lavender-purple.
• Produced continuously and profusely along the fine, wiry stems.

Bloom Care & Thinning

• Encouraging bloom: Full sun to light shade and light, regular feeding keep it flowering; a gentle shear tidies the plant and renews the display.
• Pollination: The flowers attract bees and other small pollinators.